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We've recently released Test Bench 2.0 for Monitors! Read our new VRR Flicker R&D Article and Pursuit Photo R&D Article to learn more.

LG 27GL850-B/27GL83A-B Monitor Review

Tested using Methodology v2.0
Review updated Apr 08, 2024 at 03:30 pm
Latest change: Retest Apr 26, 2024 at 09:25 am
LG 27GL850-B/27GL83A-B Picture
6.8
PC Gaming
6.1
Console Gaming
7.4
Office
6.9
Editing
7.1
Brightness
7.4
Response Time
4.7
HDR Picture
6.0
SDR Picture
7.9
Color Accuracy

The LG 27GL850-B/27GL83A-B is an entry-level 1440p gaming monitor with a 144Hz refresh rate. Part of the LG UltraGear lineup sitting above the LG 27GL650F-B, it's available in two variants, with the 27GL850 model having two USB-A ports, which the 27GL83A-B model doesn't have. They have the same features besides that, including FreeSync VRR and G-SYNC compatibility, but they lack some features some higher-end monitors have, like HDMI 2.1 bandwidth.

Our Verdict

6.8 PC Gaming

The LG 27GL850 is acceptable for PC gaming. Although its 144Hz refresh rate isn't ideal for competitive gaming, it's still fine for entry-level gaming and has VRR support to reduce screen tearing. It has a decent response time at any refresh rate, as any motion blur isn't overly distracting, and it has low input lag for a responsive feel. That said, it has limited picture quality as it has a low contrast ratio and doesn't get bright enough for highlights to pop in HDR.

Pros
  • Decent response time at any refresh rate.
  • Low input lag.
Cons
  • Disappointing contrast ratio.
  • Can't make highlights pop in HDR.
6.1 Console Gaming

The LG 27GL850 is disappointing for console gaming. It can't take full advantage of the PS5 and Xbox Series X|S as it's limited to a 1440p resolution and HDMI 2.0 bandwidth, but it still supports most signals from the consoles. It has a decent response time that minimizes motion blur, and it has a low enough input lag for a responsive feel. However, it has limited picture quality due to its low contrast ratio and lack of local dimming, so games don't look the way the creator intended.

Pros
  • Decent response time at any refresh rate.
  • Low input lag.
Cons
  • Disappointing contrast ratio.
  • Not fully compatible with consoles.
  • Can't make highlights pop in HDR.
7.4 Office

The LG 27GL850 is a decent monitor for office use. It's good if you want to use it in a well-lit room as it gets bright enough to fight glare and has good reflection handling. It also has wide viewing angles that are useful if you need to share your screen with someone else, but it lacks a swivel adjustment to easily turn the screen. Lastly, while it has decent text clarity, it isn't as sharp as other 27-inch, 1440p monitors.

Pros
  • Wide viewing angles.
  • Bright enough to fight glare.
  • Good reflection handling.
Cons
  • No swivel adjustment.
  • Text clarity not as good as other 27-inch, 1440p monitors.
6.9 Editing

The LG 27GL850 is okay for content creation. It performs best in a well-lit room thanks to its high peak brightness and good reflection handling, but it struggles in dark rooms as it has a low contrast ratio and lacks a local dimming feature. While it has a dedicated sRGB mode, you still need to calibrate it for the best accuracy. It also fails to display bright colors in HDR, which is disappointing if you need to edit videos.

Pros
  • Wide viewing angles.
  • Bright enough to fight glare.
  • Good reflection handling.
Cons
  • Disappointing contrast ratio.
  • No swivel adjustment.
  • Needs full calibration for best accuracy.
7.1 Brightness

The LG 27GL850 has decent brightness. It gets bright enough to fight glare in a well-lit room but doesn't make highlights pop in HDR.

Pros
  • Bright enough to fight glare.
Cons
  • Can't make highlights pop in HDR.
7.4 Response Time

The LG 27GL850 has a decent response time. It performs consistently well across its VRR range, which is good for gaming, but there's still some blur with fast-moving objects.

Pros
  • Decent response time at any refresh rate.
Cons
  • Still a bit of motion blur.
4.7 HDR Picture

The LG 27GL850 is terrible for HDR. Blacks look gray due to its low contrast, and it doesn't have a local dimming feature to further improve it. It also fails to make colors look vivid.

Pros
Cons
  • Disappointing contrast ratio.
  • Lack of local dimming feature.
6.0 SDR Picture

The LG 27GL850 has mediocre picture quality in SDR. It has a low contrast ratio, so blacks look gray next to bright highlights.

Pros
  • Displays wide range of colors.
Cons
  • Disappointing contrast ratio.
7.9 Color Accuracy

The LG 27GL850 has very good color accuracy. Although it has a dedicated sRGB mode, you still need to calibrate it for the best accuracy. Luckily, it has good gray uniformity, so it keeps the image consistent throughout the entire screen.

Pros
  • Good gray uniformity.
Cons
  • Needs full calibration for best accuracy.
  • 6.8 PC Gaming
  • 6.1 Console Gaming
  • 7.4 Office
  • 6.9 Editing

Performance Usages

  • 7.1 Brightness
  • 7.4 Response Time
  • 4.7 HDR Picture
  • 6.0 SDR Picture
  • 7.9 Color Accuracy
  1. Updated Apr 26, 2024: Corrected the scores in Console Compatibility to reflect that it needs to downscale 4k signals.
  2. Updated Apr 17, 2024: Updated text throughout the review according to Test Bench 2.0, mainly in the Verdict and Motion sections.
  3. Updated Apr 17, 2024: We've converted this review to Test Bench 2.0. This includes new tests for VRR Motion Performance, Refresh Rate Compliance, Cumulative Absolute Deviation (CAD), and VRR Flicker. You can read the full changelog here.
  4. Updated Dec 14, 2023: Clarified the differences between this monitor and its variant, the LG 27LG83A-B, in the Variants section.
  5. Updated Apr 14, 2023: Confirmed that 1440p works on this monitor with the PS5, as long as you disable VRR.
  6. Updated Jun 16, 2022: Updated to Test Bench 1.2, resulting in changes to the results and scores with the Response Time and Input Lag. Added tests for Console Compatibility and macOS compatibility and made minor changes to other tests, which you can see in our Changelog.
  7. Updated Jan 20, 2021: For consistency, we've changed the swivel adjustment from N/A to 'No'. The score remains unchanged.
  8. Updated Jun 04, 2020: We retested FreeSync over HDMI, and updated our results below.
  9. Updated Feb 17, 2020: Converted to Test Bench 1.1.
  10. Updated Aug 15, 2019: Review published.
  11. Updated Aug 13, 2019: Our testers have started testing this product.
  12. Updated Aug 13, 2019: Early access published.
  13. Updated Aug 11, 2019: The product has arrived in our lab, and our testers will start evaluating it soon.
  14. Updated Aug 07, 2019: We've purchased the product and are waiting for it to arrive in our lab.

Differences Between Sizes And Variants

We tested the 27-inch LG 27GL850, which is also available as the 27GL83A-B. The only difference is that the 27GL850 has USB ports, but the results are valid for each monitor.

Model Size Resolution Refresh Rate USB Ports
27GL850-B 27" 1440p 144Hz 2x USB-A
1x USB-B
27GL83A-B 27" 1440p 144Hz None

Our 27GL850 unit was manufactured in June 2019; you can see the label here. It was tested with firmware 3.18, 2.03.

Compared To Other Monitors

The LG 27GL850 is an okay entry-level gaming monitor that's a reliable option if you need a low-cost display. It has a decent response time and low input lag for a responsive feel that you should be happy with, especially if you're on a budget or don't have a high-end PC setup. However, if you're a competitive gamer, you may want to consider something with a higher refresh rate, like the LG 27GR83Q-B, even if it costs more.

See also our reviews for the best gaming monitors, the best 1440p 144Hz monitors, and the best 27-inch monitors.

LG 27GP850-B/27GP83B-B

The LG 27GP850-B/27GP83B-B is better than the LG 27GL850-B/27GL83A-B, but the differences are minor and might not matter to everyone. The 27GP850-B has a slightly faster refresh rate, resulting in better motion handling and a touch less motion blur behind fast-moving objects. The 27GP850-B also has an optional black frame insertion feature, but most people won't use this when gaming anyway.

ASUS TUF VG27AQ

The ASUS TUF VG27AQ and the LG 27GL850-B/27GL83A-B are entry-level 1440p gaming monitors. The LG is the better choice for gaming thanks to its faster response time, while the ASUS is better for office use as it has better ergonomics.

Dell S2719DGF

The LG 27GL850-B/27GL83A-B is much better than the Dell S2719DGF for most uses, especially if ergonomics aren't important for you. The LG has much better picture quality, with wide viewing angles, much better gradient handling, and HDR support. The LG also has slightly better motion handling, with a slightly faster response time, resulting in slightly clearer motion.

LG 27GN800-B

The LG 27GL850-B/27GL83A-B and the LG 27GN800-B perform quite similarly overall. While the 27GN800-B has a slightly faster response time, it also has a terrible stand with very few adjustment options. That may not be a problem if you plan on VESA-mounting it, however. The 27GL850-B, on the other hand, includes two USB 3.0 ports, offering more connectivity than the 27GN800-B, if that's important to you. 

Acer Nitro XV272U KVbmiiprzx

The Acer Nitro XV272U KVbmiiprzx and the LG 27GL850-B/27GL83A-B are very similar 27 inch, 1440p IPS monitors. The Acer performs better gaming-wise because it has a higher refresh rate of 170Hz and better response times. The Acer's stand allows for more ergonomic adjustments than the LG's, so it might be easier to find an ideal viewing position.

Samsung Odyssey G5/G50D S27DG50

The LG 27GL850-B/27GL83A-B and the Samsung Odyssey G5/G50D S27DG50 are 27-inch 1440p gaming monitors. The Samsung is a better choice if you plan to game next to a window, as it gets much brighter. However, the LG is better if you want the sharpest image, as it has better motion handling.

ASUS TUF Gaming VG27AQL1A

The ASUS TUF Gaming VG27AQL1A and the LG 27GL850-B/27GL83A-B are both entry-level 1440p gaming monitors. The ASUS has a 170Hz refresh rate, much better ergonomics, a BFI feature, and it gets brighter in HDR. However, the LG has a much quicker response time and better out-of-the-box color accuracy.

Gigabyte M27Q (rev. 1.0)

The Gigabyte M27Q (rev. 1.0) is a bit better than the LG 27GL850-B/27GL83A-B for most uses. Although they have similar response times, the Gigabyte has a higher refresh rate of 170Hz compared to the LG's 144Hz, resulting in a slightly smoother and more responsive gaming experience. Also, the Gigabyte's input lag is much lower at 60Hz than the LG's, making it more ideal for 60fps console gaming. For those in a well-lit room, the LG has better reflection handling, but it doesn't get as bright. The Gigabyte has more productivity features, including a USB-C port with DisplayPort Alt Mode support, an integrated KVM switch, and a Picture-in-Picture/Picture-by-Picture mode.

Gigabyte G27Q

The Gigabyte G27Q and LG 27GL850-B/27GL83A-B are two very good monitors, and they both have a 1440p resolution and 144Hz refresh rate. The Gigabyte gets brighter, so it does a better job at combatting glare and makes highlights stand out a bit more in HDR. On the other hand, the LG has a much quicker response time at 60Hz, so motion looks less blurry in 60fps games.

Samsung Odyssey G5 S27AG50

The Samsung Odyssey G5 S27AG50 is similar for gaming to the LG 27GL850-B/27GL83A-B. The Samsung has a faster 165Hz refresh rate than the 144Hz on the LG, and it has a BFI feature that the LG doesn't have. The Samsung is also a slightly better choice for well-lit rooms because it gets brighter, and if you want to use it for co-op gaming, you can swivel its stand, which you can't do with the LG. The one difference the LG has over the Samsung is that it has USB 3.0 inputs to connect your keyboard and mouse, which you can't do with the Samsung.

Samsung Odyssey G5/G55C S27CG55

The LG 27GL850-B/27GL83A-B and the Samsung Odyssey G5/G55C S27CG55 are both entry-level 1440p gaming monitors, but they have a few differences, mainly due to their panel types. The LG has wider viewing angles, making it the better choice for co-op gaming, while the Samsung has a higher contrast ratio, which is great for gaming in dark rooms. That said, despite the LG having a lower native refresh rate, it has much better motion handling, so fast-moving objects are sharper.

AOC CQ27G2

The LG 27GL850-B/27GL83A-B is much better than the AOC CQ27G2 for most uses. They use different panel technologies, each with their own strengths and weaknesses. The 27GL850-B has wider viewing angles, much faster response times, and higher peak brightness. The 27GL850-B supports HDR, but this doesn't add much. On the other hand, the AOC CQ27G2 has a much higher native contrast ratio, resulting in much deeper blacks.

LG 27GN850-B/27GN880-B

The LG 27GN850-B/27GN880-B is a slight improvement over its predecessor, the LG 27GL850-B/27GL83A-B. The 27GN850-B displays wider SDR and HDR color gamuts, meaning it's a better choice for content creators. It also has a quicker response time at its max refresh rate, making it a slightly better choice for gaming. However, the 27GL850-B gets brighter and has better reflection handling, so it's a good choice for well-lit rooms. It also has two USB inputs, which the 27GN850-B doesn't have, so you can easily charge your devices while working.

MSI Optix MAG274QRF-QD

The MSI Optix MAG274QRF-QD is a better gaming monitor than the LG 27GL850-B/27GL83A-B. They have similar features with a 1440p resolution, FreeSync support, G-SYNC compatibility, and a very quick response time. The MSI has a black frame insertion feature, which the LG doesn't, but it has a narrow flicker range and can't be used with VRR enabled. The MSI also has much better ergonomics, including a swivel adjustment, which the LG doesn't have.

Acer Nitro VG271UP Pbmiipx

The LG 27GL850-B/27GL83A-B is better than the Acer Nitro VG271UP Pbmiipx. The LG 27GL850-B has better ergonomics, so you can position it to your liking with ease, and has a faster response time that helps deliver slightly crisper motion. The Acer VG271UP has an optional Black Frame Insertion feature to make motion crisper, and although it has marginally better contrast, its terrible black uniformity is noticeable in a dark room.

Samsung Odyssey G5 C27G55T

The LG 27GL850-B/27GL83A-B is much better than the Samsung Odyssey G5 C27G55T for most uses. The LG has a much quicker response time to deliver smoother motion in fast-moving scenes. The LG uses an IPS panel that provides wider viewing angles, while the Samsung uses a VA panel that produces deeper blacks for a better dark room viewing experience. 

Dell S2721DGF

The Dell S2721DGF is a bit better overall than the LG 27GL850-B/27GL83A-B. The Dell has much better ergonomics, better build quality, and better reflection handling. On the other hand, the LG is more accurate out of the box, and for the two units we tested, the LG has better black uniformity, but this varies between units.

LG 27GN750-B

The LG 27GL850-B/27GL83A-B is a bit better than the LG 27GN750-B. The 27GL850-B has a 144Hz refresh rate, 1440p resolution, a wider SDR color gamut, and better gradient handling. The 27GN750-B has better contrast, a 240Hz refresh rate, and its response time is a bit better, but the response time at 60Hz is still better on the 27GL850-B.

ASUS TUF VG27VQ

The LG 27GL850-B/27GL83A-B is a much better monitor than the ASUS TUF VG27VQ. The 1440p resolution provides clearer images, plus the viewing angles, response time, and gradient handling are much better on the LG, and it supports HDR. Instead, the ASUS has a much better contrast ratio and higher refresh rate, which might please some gamers who don't mind losing some picture quality. 

AOC CQ27G1

For most uses, the LG 27GL850-B/27GL83A-B performs much better than the AOC CG27G1. The LG has an IPS panel that provides wider viewing angles and it can't get a lot brighter, making it more suitable for bright environments. Also, the LG supports HDR and has a much faster response time, at both maximum refresh rate and at 60Hz. On the other hand, the AOC has a VA panel that has significantly better dark room performance and it has an impressive out-of-the-box color accuracy.

BenQ EX2780Q

The LG 27GL850-B/27GL83A-B is slightly better than the BenQ EX2780Q in mixed usage. Ergonomics are significantly better on the LG, as well as gradient performance. There's less color bleeding on the LG, but its black uniformity and contrast ratio are much worse than the BenQ.

ASUS VG279Q

The LG 27GL850-B/27GL83A-B is slightly better than the ASUS VG279Q for most uses. The LG has a higher resolution screen, and it supports HDR. The VG279Q has much better ergonomics and an optional black frame insertion feature. The LG has better motion handling overall, with a faster response time that delivers extremely clear motion, with almost no blur behind fast-moving objects.

LG 27GL650F-B

The LG 27GL850-B/27GL83A-B is slightly better than the 27GL650F-B. The 27GL850-B has a faster response time, resulting in clearer motion with less blur. The 27GL850 also has a better native resolution, so you can see more fine details in your favorite games, and it has an optional USB hub.

ASUS ROG Swift PG279Q

The ASUS ROG Swift PG279Q and the LG 27GL850-B/27GL83A-B have very similar overall performance, but they have some significant differences. The LG supports HDR, supports FreeSync, and has better gradient thanks to its 10-bit panel. The ASUS, on the other hand, has better ergonomics, supports G-SYNC, and has an optional black frame insertion feature to help improve the appearance of motion.

ASUS TUF Gaming VG249Q1A

The ASUS TUF Gaming VG249Q1A and the LG 27GL850-B/27GL83A-B are both gaming monitors but with very different specs. The ASUS has a 1080p resolution and a 165Hz refresh rate, while the LG has a 1440p resolution and a 144Hz refresh rate. The ASUS' slightly higher refresh rate and better response times provide a marginally better gaming experience, but its smaller screen size and lower resolution make it less ideal for work and media consumption. The LG has significantly better ergonomics, but it still doesn't allow for swivel adjustment.

ViewSonic VX2758-2KP-MHD

The LG 27GL850-B/27GL83A-B is better than the ViewSonic VX2758-2KP-MHD. The LG has much better ergonomics, motion handling, and color accuracy, but the ViewSonic has a much better contrast ratio and black uniformity. The LG supports HDR and has a much better gradient performance, but doesn't have a black frame insertion feature like the ViewSonic.

Acer Nitro XV273 Xbmiiprzx

The Acer Nitro XV273 Xbmiiprzx is slightly better than the LG 27GL850-B/27GL83A-B. The Acer has a significantly better contrast ratio and a higher refresh rate, as well as better black uniformity and peak brightness. However, the LG has a higher resolution of 1440p and supports wide color gamut. Additionally, the Acer has a better build quality and reflection handling than the LG.

HP OMEN 27

The LG 27GL850-B/27GL83A-B is much better than the HP OMEN 27 for most uses, but they offer very similar performance for gaming. The HP has better reflection handling and an optional black frame insertion feature, but the LG has slightly better motion handling overall, with slightly clearer motion. The LG supports HDR and has much better viewing angles, as well as slightly better ergonomics.

LG 27GN950-B

The LG 27GN950-B is better than the LG 27GL850-B/27GL83A-B. The 27GN950-B has a higher 4k resolution, it gets brighter, has a bit quicker response time, and has better color accuracy. However, the 27GL850-B has much better reflection handling.

LG 32GK850G-B

For most uses, the LG 27GL850-B/27GL83A-B is better than the LG 32GK850G-B. The 27GL850-B provides better visibility, as it has wider viewing angles, higher peak brightness, and better reflection handling. The 27GL850-B supports HDR and its response time is faster. However, the 32GK850G-B's VA panel has a higher contrast ratio and a slightly higher refresh rate. The 27GL850-B is a native FreeSync monitor, while the 32GK850G-B supports G-SYNC natively.

Lenovo Legion Y27q-20

Overall, the Lenovo Y27q-20 is a bit better than the LG 27GL850-B/27GL83A-B. The Lenovo has a slightly higher refresh rate, better ergonomics, and better color accuracy out of the box. However, the LG gets a little brighter in SDR and HDR, and it has better response time when running at 60Hz.

ASUS ROG Strix XG279Q

The ASUS ROG Strix XG279Q is better than the LG 27GL850-B/27GL83A-B. The ASUS has much better ergonomics, it gets brighter, there's a BFI feature, and you can overclock its refresh rate to 170Hz. However, the LG has a lower input lag and it has wider viewing angles.

Pixio PX7 Prime

The LG 27GL850-B/27GL83A-B is slightly better than the Pixio PX7 Prime. The LG has slightly better viewing angles, and a faster response time, resulting in slightly clearer motion, although most people won't notice this.

HP OMEN 27i

The LG 27GL850-B/27GL83A-B and the HP OMEN 27i perform very similarly, but the LG is slightly better overall. The LG supports HDR, although this doesn't add much. The LG has a slightly faster response time, but there's also more overshoot in our recommend 'Fast' overdrive setting. The LG is also more accurate out of the box. On the other hand, the HP is better-built, with excellent build quality.

Acer Predator XB271HU Bmiprz

The LG 27GL850-B/27GL83A-B is better than the Acer Predator XB271HU Bmiprz. The LG supports HDR and can handle reflections better, which is important when there are a few lights in your room. The Acer, on the other hand, has a black frame insertion feature that helps make the image look crisper.

Dell S3220DGF

The LG 27GL850-B/27GL83A-B and the Dell S3220DGF have very similar overall performance, with the LG being marginally better. The LG has an IPS panel with much wider viewing angles, it gets brighter, and it has better reflection handling. The LG's response time is much faster, but the Dell has a slightly higher refresh rate, a bigger screen, and a higher contrast ratio thanks to its VA panel.

Razer Raptor 27 144Hz

The LG 27GL850-B/27GL83A-B is slightly better than the Razer Raptor 27 144Hz. The 27GL850-B has a much faster response time, resulting in much clearer motion with almost no noticeable blur behind fast-moving objects. The Razer Raptor has an optional black frame insertion feature, though, which can help improve the appearance of motion. The LG also has a slightly more adjustable stand, and it can be VESA mounted.

Samsung CHG70

The two monitors use different panel technologies, each with advantages and disadvantages. The LG 27GL850-B/27GL83A-B has an IPS panel that allows wider viewing angles, whereas the Samsung CHG70 has a VA panel and offers better dark room performance thanks to the much better contrast ratio and local dimming feature. The LG has slightly faster response time, but the Samsung has a black frame insertion feature that can help make motion look crisper.

Samsung Odyssey G7 C32G75T

The Samsung Odyssey G7 C32G75T is a much better gaming monitor than the LG 27GL850-B/27GL83A-B. The Samsung has a VA panel that displays deep blacks, and it has better uniformity. It also has a 240Hz refresh rate, the response time is a bit quicker, and it's available in both a 27 and 32-inch size. However, the LG has an IPS panel with much better viewing angles.

LG 32GK650F-B

Although the LG 32GK650F-B and the LG 27GL850-B/27GL83A-B look almost identical, the 27GL850-B performs better overall. The 27GL850-B has an IPS panel with much better viewing angles, better reflection handling, and faster response time. It also supports HDR and has better gradient handling, but the 32GK650F-B has a higher contrast ratio due to its VA panel, and a black frame insertion feature. Text doesn't look as clear on the 32GK650F-B, as its bigger screen results in a lower pixel density.

Gigabyte AORUS FI27Q

The Gigabyte AORUS FI27Q is marginally better than the LG 27GL850-B/27GL83A-B. The FI27Q has a much better build quality and ergonomics, as well as a better contrast ratio and color accuracy, but the LG has significantly better black uniformity. They perform similarly in terms of motion handling, but the LG has a faster response time, whereas the AORUS FI27Q has a higher refresh rate.

MSI Optix MAG271CQR

The LG 27GL850-B/27GL83A-B and the MSI Optix MAG271CQR use different panel technologies, each with their own strengths and weaknesses. The MSI looks better in a dark room, as it has better contrast, but the LG has better viewing angles, and it supports HDR. The Optix has an optional black frame insertion feature, and it has better reflection handling.

Gigabyte AORUS AD27QD

The Gigabyte AORUS AD27QD and the LG 27GL850-B/27GL83A-B are very similar overall. For gaming, the LG has slightly better motion handling, and is the better choice if you are sensitive to motion blur or overshoot artifacts. The AD27QD is more feature-packed, including better ergonomics, an optional black frame insertion feature, and countless additional gaming features.

ViewSonic Elite XG270QG

The LG 27GL850-B/27GL83A-B and the ViewSonic Elite XG270QG are two similar-performing monitors. The ViewSonic has a max refresh rate of 165Hz, G-SYNC support, a black frame insertion feature to help reduce motion blur, and better ergonomics. The LG supports HDR and has much better out-of-box color accuracy. Even though the LG has a max refresh rate of 144Hz, the two monitors still have a very similar response time, except the LG is quicker at 60Hz.

ASUS ROG Swift PG279QZ

The LG 27GL850-B/27GL83A-B is slightly better than the ASUS ROG Swift PG279QZ for most uses. For gaming, the PG279QZ has better ergonomics, and an optional black frame insertion feature, but if these aren't very important to you, the 27GL850 has better motion handling overall, with a better response time, and it supports HDR.

Dell S2716DG

The LG 27GL850-B/27GL83A-B is significantly better than the Dell S2716DG. The LG has an IPS panel that offers much better viewing angles, has better gray uniformity, as well as color accuracy. The LG also has better reflection handling and gradient performance, but the Dell has a black frame insertion feature that helps reduce motion blur and its ergonomics are much better.

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Video

Test Results

perceptual testing image
Design
Design
Style
Curved
No
Curve Radius
Not Curved

The LG 27GL850 has the same look as most other LG UltraGear monitors. It's mainly black with a red circle on the back, but it has no backlighting.

Design
Accelerated Longevity Test
Uniformity Pictures N/A
7.0
Design
Build Quality

The build quality is decent. The outer casing is almost entirely made of plastic, but there aren't any obvious issues.

7.4
Design
Ergonomics
Min Height To Top Of Panel
17.9" (45.5 cm)
Height Adjustment
4.1" (10.5 cm)
Tilt Range
-15° to 5°
Rotate Portrait/Landscape
Yes, Clockwise
Swivel Range
No swivel
Wall Mount
VESA 100x100

This monitor has good ergonomics. Besides not being able to swivel, you shouldn't have many issues placing it in an ideal position for yourself. The back of the monitor is very similar to other UltraGear monitors as it has cable management through a clip attached to the stand.

Design
Stand
Base Width
18.9" (48.0 cm)
Base Depth
9.4" (23.9 cm)
Thickness (With Display)
6.5" (16.5 cm)
Weight (With Display)
13.2 lbs (6.0 kg)

The stand supports the monitor well, but the screen still wobbles a bit.

Design
Display
Size
27"
Housing Width
24.2" (61.4 cm)
Housing Height
14.4" (36.5 cm)
Thickness (Without Stand)
2.2" (5.6 cm)
Weight (Without Stand)
9.0 lbs (4.1 kg)
Borders Size (Bezels)
0.4" (1.0 cm)
Design
Controls

Like most modern LG monitors, it has a joystick underneath the monitor to control the on-screen display.

Design
In The Box
Power Supply
External Brick

  • HDMI cable
  • DisplayPort cable
  • USB-B cable
  • Mouse bungee clip
  • Power adapter and cable
  • User guides, including CD

Picture Quality
5.5
Picture Quality
Contrast
Native Contrast
735 : 1
Contrast With Local Dimming
N/A

This monitor has a disappointing contrast ratio. Blacks look gray next to bright highlights, and it doesn't have a local dimming feature to improve it. If you're looking for a similar monitor with a VA panel displaying deeper blacks, check out the AOC CQ27G1.

0
Picture Quality
Local Dimming
Local Dimming
No
Backlight
Edge

This monitor doesn't have a local dimming feature. We still film these videos on the monitor so you can compare the backlight performance with a monitor that has local dimming.

7.8
Picture Quality
SDR Brightness
Real Scene
315 cd/m²
Peak 2% Window
346 cd/m²
Peak 10% Window
346 cd/m²
Peak 25% Window
346 cd/m²
Peak 50% Window
347 cd/m²
Peak 100% Window
347 cd/m²
Sustained 2% Window
346 cd/m²
Sustained 10% Window
346 cd/m²
Sustained 25% Window
346 cd/m²
Sustained 50% Window
346 cd/m²
Sustained 100% Window
347 cd/m²
Automatic Brightness Limiting (ABL)
0.000
Minimum Brightness
50 cd/m²

The SDR brightness is good. It remains consistent with different content, and it gets bright enough to fight glare in a well-lit room unless you have the sun directly on the screen. These results are from after calibration in the 'Gamer 1' Game Mode, which is the picture mode setting, with the Brightness at its max. If you want something that gets even brighter, check out the Gigabyte G27Q.

6.6
Picture Quality
HDR Brightness
VESA DisplayHDR Certification
No Certification
Real Scene
363 cd/m²
Peak 2% Window
394 cd/m²
Peak 10% Window
395 cd/m²
Peak 25% Window
396 cd/m²
Peak 50% Window
396 cd/m²
Peak 100% Window
396 cd/m²
Sustained 2% Window
376 cd/m²
Sustained 10% Window
379 cd/m²
Sustained 25% Window
371 cd/m²
Sustained 50% Window
380 cd/m²
Sustained 100% Window
395 cd/m²
Automatic Brightness Limiting (ABL)
0.010

The HDR brightness is okay. It can't get bright enough to make small highlights pop against the rest of the image. The EOTF also doesn't follow the target PQ curve well, as there's a slow roll-off, so highlights don't get the brightest they could. These results are in the 'Standard' Game Mode in HDR with the Brightness at its max.

8.4
Picture Quality
Horizontal Viewing Angle
Color Washout From Left
45°
Color Washout From Right
45°
Color Shift From Left
51°
Color Shift From Right
51°
Brightness Loss From Left
48°
Brightness Loss From Right
50°
Black Level Raise From Left
70°
Black Level Raise From Right
70°
Gamma Shift From Left
58°
Gamma Shift From Right
55°

The LG 27GL850 has a great horizontal viewing angle. The image remains consistent when viewed from the side.

6.8
Picture Quality
Vertical Viewing Angle
Color Washout From Below
32°
Color Washout From Above
33°
Color Shift From Below
33°
Color Shift From Above
39°
Brightness Loss From Below
37°
Brightness Loss From Above
39°
Black Level Raise From Below
70°
Black Level Raise From Above
41°
Gamma Shift From Below
31°
Gamma Shift From Above
31°

The vertical viewing angle is alright. Although the image is darker from wide angles, it's still fine if you're standing up and looking down on the screen.

7.8
Picture Quality
Gray Uniformity
50% Std. Dev.
3.120%
50% DSE
0.156%

This monitor has good gray uniformity. There's some very slight vignetting and a bit of dirty screen effect in the center, but neither of these are very noticeable with normal content.

4.8
Picture Quality
Black Uniformity
Native Std. Dev.
2.831%
Std. Dev. w/ L.D.
N/A

Unfortunately, this monitor has poor black uniformity. There's noticeable backlight bleed and clouding throughout, and it lacks a local dimming feature to further improve it.

7.3
Picture Quality
Color Accuracy (Pre-Calibration)
Picture Mode
sRGB
sRGB Gamut Area xy
100.4%
White Balance dE (Avg.)
6.96
Color Temperature (Avg.)
7,860 K
Gamma (Avg.)
2.13
Color dE (Avg.)
4.15
Contrast Setting
N/A
RGB Settings
Default
Gamma Setting
Default
Brightness Setting
40
Measured Brightness
182 cd/m²
Brightness Locked
No

This monitor has decent accuracy before calibration. It has a dedicated sRGB mode, so it limits colors well to the sRGB color space, but it still has inaccuracies, particularly with the white balance. Even the color temperature is cold, resulting in a blue tint, and gamma doesn't follow the sRGB curve well as dark scenes are too dark and bright scenes are over-brightened. The sRGB mode also locks many settings, including Response Time, and other picture modes that don't lock out any settings have oversaturated colors, as you can see here.

9.5
Picture Quality
Color Accuracy (Post-Calibration)
Picture Mode
Gamer 1
sRGB Gamut Area xy
102.7%
White Balance dE (Avg.)
0.66
Color Temperature (Avg.)
6,473 K
Gamma (Avg.)
2.18
Color dE (Avg.)
0.56
Contrast Setting
68
RGB Settings
49-46-40
Gamma Setting
Mode 2
Brightness Setting
18
Measured Brightness
102 cd/m²
ICC Profile
Download

After calibration, this monitor has exceptional accuracy. It displays colors almost perfectly, and any remaining inaccuracies aren't noticeable. Calibrating it also allows you to use any of the picture settings that are locked out in the sRGB mode.

9.5
Picture Quality
SDR Color Gamut
sRGB Coverage xy
99.6%
sRGB Picture Mode
Gamer 1
Adobe RGB Coverage xy
88.2%
Adobe RGB Picture Mode
Gamer 1

This monitor has an incredible SDR color gamut. It can display the entire sRGB color space used in most content. It also has great coverage of the wider Adobe RGB color space used in professional photo editing, but not all colors are accurate in that color space.

8.8
Picture Quality
HDR Color Gamut
Wide Color Gamut
Yes
DCI-P3 Coverage xy
95.2%
DCI-P3 Picture Mode
Standard
Rec. 2020 Coverage xy
70.5%
Rec. 2020 Picture Mode
Standard

The LG 27GL850 has an excellent HDR color gamut. It has fantastic coverage of the DCI-P3 color space used in most HDR content, but it has some tone mapping issues and more limited coverage of the wider Rec. 2020 color space.

7.1
Picture Quality
HDR Color Volume
1,000 cd/m² DCI-P3 Coverage ICtCp
57.7%
DCI-P3 Picture Mode
Standard
10,000 cd/m² Rec. 2020 Coverage ICtCp
27.6%
Rec. 2020 Picture Mode
Standard

The HDR color volume is decent. It has trouble displaying bright and dark colors very well.

7.0
Picture Quality
Text Clarity
Pixel Type
IPS
Subpixel Layout
RGB

Text clarity is decent but not as good as other 27-inch, 1440p monitors. It can be improved by using ClearType (top photo), which makes the diagonal lines on the letters R and N clearer.

7.7
Picture Quality
Reflections
Screen Finish
Matte
Total Reflections
4.8%
Indirect Reflections
2.7%
Calculated Direct Reflections
2.1%

The LG 27GL850 has good reflection handling. It performs well in rooms with moderate amounts of light, such as most office environments.

9.7
Picture Quality
Gradient
Color Depth
10 Bit

The LG 27GL850 has remarkable gradient handling. Any banding isn't noticeable with most content.

Motion
7.4
Motion
Refresh Rate
Native Refresh Rate
144 Hz
Max Refresh Rate
144 Hz
Max Refresh Rate Over DP
144 Hz
Max Refresh Rate Over HDMI
144 Hz
Max Refresh Rate Over DP @ 10-bit
144 Hz
Max Refresh Rate Over HDMI @ 10-Bit
75 Hz
Motion
Variable Refresh Rate (VRR)
Variable Refresh Rate
Yes
FreeSync
Yes
G-SYNC
Compatible (NVIDIA Certified)
VRR Maximum
144 Hz
VRR Minimum
< 20 Hz
VRR Supported Connectors
DisplayPort, HDMI

NVIDIAVRR MinVRR Max
DisplayPort<20Hz144Hz
HDMI<20Hz100Hz

AMDVRR MinVRR Max
DisplayPort<20Hz144Hz
HDMI<20Hz100Hz

Although the monitor has a max refresh rate of 144Hz over HDMI with VRR disabled, the refresh rate is limited to 100Hz over HDMI once you enable VRR.

7.5
Motion
VRR Motion Performance
Recommended VRR OD Setting
Fast
Variable Overdrive Advertised
No
Avg. CAD
189
Best CAD
182
Worst CAD
205

Refresh RateCAD HeatmapRT ChartPursuit Photo
143HeatmapChartPhoto
120HeatmapChartPhoto
100HeatmapChartPhoto
80HeatmapChartPhoto
60HeatmapChartPhoto

The LG 27GL850 has good motion handling across its VRR range. The 'Fast' Response Time is consistently the best, and while it has worse motion handling at lower refresh rates, it's still better overall than the 'Off' and 'Normal' settings. The CAD of the 'Faster' setting is so high that it passes the limits of the chart, but you can see an alternative chart here.

7.3
Motion
Refresh Rate Compliance
Compliance @ Max Hz
53%
Compliance @ 120 FPS
58%
Compliance @ 60 FPS
76%

The refresh rate compliance is decent. Its response time isn't fast enough to make full transitions before the monitor draws the next frame with fast frame rates, but it's better at 60 fps.

7.4
Motion
CAD @ Max Refresh Rate
OD Transition Max Refresh Rate
Recommended Overdrive Setting
Fast
Avg. CAD
182
Best 10% CAD
104
Worst 10% CAD
300

Overdrive ModeCAD HeatmapRT ChartPursuit Photo
OffHeatmapChartPhoto
NormalHeatmapChartPhoto
FastHeatmapChartPhoto
FasterHeatmapChartPhoto

The CAD at the max refresh rate of 144Hz is decent. The 'Fast' response time has the lowest CAD with the fastest total response time and less overshoot than 'Faster,' but there's still some noticeable blur.

Motion
Response Time @ Max Refresh Rate
Recommended Overdrive Setting
Fast
First Response Time
7.1 ms
Total Response Time
7.1 ms
RGB Overshoot
0 RGB
Worst 10% First Response Time
13.0 ms
Worst 10% Total Response Time
13.0 ms
Worst 10% RGB Overshoot
1 RGB

Overdrive ModeFirst Response HeatmapTotal Response HeatmapRGB Overshoot Heatmap
OffHeatmapHeatmapHeatmap
NormalHeatmapHeatmapHeatmap
FastHeatmapHeatmapHeatmap
FasterHeatmapHeatmapHeatmap

7.4
Motion
CAD @ 120Hz
OD Transition 120Hz
Recommended Overdrive Setting
Fast
Avg. CAD
183
Best 10% CAD
103
Worst 10% CAD
301

Overdrive ModeCAD HeatmapRT ChartPursuit Photo
OffHeatmapChartPhoto
NormalHeatmapChartPhoto
FastHeatmapChartPhoto
FasterHeatmapChartPhoto

The CAD at 120Hz is decent. There's a bit of motion blur, but it isn't overly distracting, either. It performs similarly to its max refresh rate, with the 'Fast' overdrive setting having the fastest total response time and a lot less overshoot than 'Faster.'

Motion
Response Time @ 120Hz
Recommended Overdrive Setting
Fast
First Response Time
6.8 ms
Total Response Time
7.4 ms
RGB Overshoot
1 RGB
Worst 10% First Response Time
13.0 ms
Worst 10% Total Response Time
13.1 ms
Worst 10% RGB Overshoot
8 RGB

Overdrive ModeFirst Response HeatmapTotal Response HeatmapRGB Overshoot Heatmap
OffHeatmapHeatmapHeatmap
NormalHeatmapHeatmapHeatmap
FastHeatmapHeatmapHeatmap
FasterHeatmapHeatmapHeatmap

7.1
Motion
CAD @ 60Hz
OD Transition 60Hz
Recommended Overdrive Setting
Fast
Avg. CAD
208
Best 10% CAD
115
Worst 10% CAD
331

Overdrive ModeCAD HeatmapRT ChartPursuit Photo
OffHeatmapChartPhoto
NormalHeatmapChartPhoto
FastHeatmapChartPhoto
FasterHeatmapChartPhoto

The CAD at 60Hz is decent. Although the 'Fast' overdrive setting has the lowest CAD, it has some noticeable inverse ghosting caused by overshoot, so it's better to use the 'Normal' setting if that bothers you and you don't mind changing settings.

Motion
Response Time @ 60Hz
Recommended Overdrive Setting
Fast
First Response Time
6.5 ms
Total Response Time
13.7 ms
RGB Overshoot
5 RGB
Worst 10% First Response Time
10.8 ms
Worst 10% Total Response Time
21.8 ms
Worst 10% RGB Overshoot
16 RGB

Overdrive ModeFirst Response HeatmapTotal Response HeatmapRGB Overshoot Heatmap
OffHeatmapHeatmapHeatmap
NormalHeatmapHeatmapHeatmap
FastHeatmapHeatmapHeatmap
FasterHeatmapHeatmapHeatmap

Motion
Backlight Strobing (BFI)
Backlight Strobing (BFI)
No BFI
Maximum Frequency
N/A
Minimum Frequency
N/A
Longest Pulse Width Brightness
N/A
Shortest Pulse Width Brightness
N/A
Pulse Width Control
No BFI
Pulse Phase Control
No BFI
Pulse Amplitude Control
No BFI
VRR At The Same Time
No BFI

There's no optional black frame insertion feature on the LG 27GL850. If you want something similar with that, look into the ASUS TUF Gaming VG27AQL1A.

8.5
Motion
VRR Flicker
Dark Gray Flicker
0.9 RGB
Middle Gray Flicker
1.7 RGB
Light Gray Flicker
1.5 RGB

This monitor has no noticeable VRR flicker with changing frame rates, which is excellent.

10
Motion
Image Flicker
Flicker-Free
Yes
PWM Dimming Frequency
0 Hz

The backlight is flicker-free, which helps reduce eye strain if you're sensitive to it.

Inputs
8.7
Inputs
Input Lag
Native Resolution @ Max Hz
4.3 ms
Native Resolution @ 120Hz
5.1 ms
Native Resolution @ 60Hz
14.0 ms
Backlight Strobing (BFI)
N/A

The input lag is low enough for a responsive feel while gaming. Although it increases a bit at 60Hz, it isn't a significant difference.

7.5
Inputs
Resolution
Native Resolution
2560 x 1440
Aspect Ratio
16:9
Megapixels
3.7 MP
Pixel Density
109 PPI
3.9
Inputs
PS5 Compatibility
4k @ 120Hz
No
4k @ 60Hz
Yes
1440p @ 120Hz
Yes
1440p @ 60Hz
Yes
1080p @ 120Hz
Yes
1080p @ 60Hz
Yes

This monitor can't take full advantage of the PS5, and you need to make sure to turn off Adaptive Sync on the monitor for any signal to work with the console.

6.6
Inputs
Xbox Series X|S Compatibility
4k @ 120Hz
No
4k @ 60Hz
Yes
1440p @ 120Hz
Yes
1440p @ 60Hz
Yes
1080p @ 120Hz
Yes
1080p @ 60Hz
Yes

This monitor works with the Xbox Series X|S, but for 1440p @ 120Hz to work, you need to disable Adaptive Sync on the monitor. The console doesn't support HDR with 1080p and 1440p signals, so you need to use a downscaled 4k signal to get HDR.

Inputs
Inputs Photos
Inputs
Video And Audio Ports
DisplayPort
1 (DP 1.4)
Mini DisplayPort
No
HDMI
2 (HDMI 2.0)
HDMI 2.1 Rated Speed
No HDMI 2.1
DVI
No
VGA
No
Daisy Chaining
No
3.5mm Audio Out
1
3.5mm Audio In
No
HDR10
Yes
3.5mm Microphone In
No

You can adjust the volume through the onscreen menu.

Inputs
USB
USB-A Ports
2
USB-A Rated Speed
5Gbps (USB 3.2 Gen 1)
USB-B Upstream Port
Yes
USB-C Ports
0
USB-C Upstream
No USB-C Ports
USB-C Rated Speed
No USB-C Ports
USB-C Power Delivery
No USB-C Ports
USB-C DisplayPort Alt Mode
No USB-C Ports
Thunderbolt
No

The LG 27GL850 variant has two USB-A ports that you can use to connect devices, but the 27GL83A-B variant doesn't have that.

Inputs
macOS Compatibility

Unfortunately, this monitor doesn't work well with macOS. HDR looks terrible with tone mapping issues. The VRR feature is completely unusable as it flickers noticeably, and even the max refresh rate of 144Hz doesn't work properly with a fixed refresh rate. It works okay at 120Hz in SDR, with no major issues. If you're using a MacBook, Windows return to their original positions after the computer wakes from sleep, but not if you just close the lid.

Features
Features
Additional Features
Speakers
No
RGB Illumination
No
Multiple Input Display
No
KVM Switch
No

There are very few additional features on this monitor. Like other UltraGear monitors, it can display a virtual crosshair on any game. There's also a 'Black Stabilizer' feature, which adjusts the gamma in dark scenes, making it easier to spot objects in the shadows.

If you want a monitor with more extra features, look at the Gigabyte AORUS FI27Q.

Features
On-Screen Display (OSD)