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LG 27GR93U-B Monitor Review

Tested using Methodology v2.0
Review updated Apr 02, 2024 at 11:35 am
Latest change: Writing modified Apr 17, 2024 at 10:15 am
LG 27GR93U-B Picture
7.1
PC Gaming
8.0
Console Gaming
8.5
Office
7.7
Editing
7.7
Brightness
7.7
Response Time
5.0
HDR Picture
7.1
SDR Picture
8.5
Color Accuracy

The LG 27GR93U-B is a mid-range gaming monitor. It's one of two 4k, 144Hz monitors in LG's 2023 lineup, with a smaller screen than the LG 32GR93U-B. It's also a lower-end model than the older LG 27GP950-B, which has a higher refresh rate. It has features you'd expect to find in a gaming monitor, like FreeSync variable refresh rate (VRR) support and G-SYNC compatibility. It also supports HDMI 2.1 bandwidth, allowing you to take full advantage of gaming consoles and modern graphics cards. Other than that, it's rather barebones in terms of features, but its audio port supports DTS:X audio, so you can listen to high-quality audio with compatible headphones.

Our Verdict

7.1 PC Gaming

The LG 27GR93U-B is decent for PC gaming. Some competitive gamers may find its 144Hz refresh rate limiting, but it supports HDMI 2.1 bandwidth and all common VRR formats to reduce screen tearing. Luckily, it has low input lag for a responsive feel and it has a fast response time for sharp motion at high refresh rates, but there's more blur at 60Hz. Unfortunately, it has a low contrast ratio that makes blacks look gray, so it isn't ideal for dark room gaming as it has limited picture quality.

Pros
  • 144Hz refresh rate and VRR support.
  • Fast response time at high refresh rates.
  • Low input lag.
Cons
  • Blacks look gray in the dark.
  • Limited HDR brightness.
  • More motion blur at 60Hz.
8.0 Console Gaming

The LG 27GR93U-B is great for console gaming. It takes full advantage of the Xbox Series X|S and PS5 thanks to its HDMI 2.1 bandwidth, and it delivers detailed images thanks to its HDMI 2.1 bandwidth. Gaming feels responsive due to its low input lag, and it has a fast response time at 120Hz for sharp motion, but there's more blur at 60Hz. Sadly, it's a disappointing choice if you want realistic images, as it has limited picture quality due to its low contrast and lack of local dimming.

Pros
  • HDMI 2.1 bandwidth.
  • Fast response time at high refresh rates.
  • Low input lag.
Cons
  • Blacks look gray in the dark.
  • Limited HDR brightness.
  • More motion blur at 60Hz.
8.5 Office

The LG 27GR93U-B is impressive for office use. It has a 4k resolution that results in high pixel density on its 27-inch screen, so it has fantastic text clarity because of this. You won't have any issues using it in a well-lit room either, as it gets very bright and has great reflection handling. It even has wide viewing angles that help when you need to share your screen with someone else, but it lacks swivel adjustment to easily turn the screen. Unfortunately, it lacks many extra productivity features, as it only has two USB ports.

Pros
  • 4k resolution for sharp text and images.
  • Bright enough to fight glare.
  • Wide viewing angles.
  • Great reflection handling.
Cons
  • No swivel adjustment.
  • Only has two USB-A ports.
7.7 Editing

The LG 27GR93U-B is good for media creation. It has impressive accuracy before calibration in its sRGB mode, and it also displays a wide range of colors. It has a high 4k resolution that helps deliver sharp images, and it performs well in bright rooms thanks to its high peak brightness. It has wide viewing angles that are useful if you often need to share your screen with a coworker or client, but it doesn't have a swivel adjustment to easily turn the screen.

Pros
  • 4k resolution for sharp text and images.
  • Bright enough to fight glare.
  • Wide viewing angles.
  • Impressive accuracy in the sRGB mode.
Cons
  • No swivel adjustment.
  • Only has two USB-A ports.
  • Blacks look gray in the dark.
7.7 Brightness

The LG 27GR93U-B has good brightness. It easily gets bright enough to fight intense glare in well-lit rooms, but it doesn't make small highlights pop in HDR.

Pros
  • Bright enough to fight glare.
Cons
  • Limited HDR brightness.
7.7 Response Time

The LG 27GR93U-B has a good overall response time. It performs best close to its max refresh rate as fast-moving objects look sharp, but there's more blur at lower refresh rates.

Pros
  • Fast response time at high refresh rates.
Cons
  • More motion blur at 60Hz.
5.0 HDR Picture

The LG 27GR93U-B is terrible for HDR. It has a low contrast ratio that makes blacks look gray, and it lacks a local dimming feature to further improve the picture quality. It also struggles to make colors look vivid and highlights pop.

Pros
Cons
  • Blacks look gray in the dark.
  • No local dimming feature.
7.1 SDR Picture

The LG 27GR93U-B has decent picture quality in SDR. While it displays a wide range of colors, it has limited picture quality due to its low contrast that makes blacks look gray.

Pros
  • Displays wide range of colors.
Cons
  • Blacks look gray in the dark.
8.5 Color Accuracy

The LG 27GR93U-B has excellent color accuracy. Calibrating it results in the most accurate image, but it still has impressive accuracy before calibration in its sRGB mode. It also has good gray uniformity that keeps the image consistent throughout most of the screen, but the edges are darker.

Pros
  • Impressive accuracy in the sRGB mode.
  • Good gray uniformity.
Cons
  • 7.1 PC Gaming
  • 8.0 Console Gaming
  • 8.5 Office
  • 7.7 Editing

Performance Usages

  • 7.7 Brightness
  • 7.7 Response Time
  • 5.0 HDR Picture
  • 7.1 SDR Picture
  • 8.5 Color Accuracy
  1. Updated Apr 17, 2024: Updated text throughout the review according to Test Bench 2.0, mainly in the Verdict and Motion sections.
  2. 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.
  3. Updated Nov 07, 2023: Review published.
  4. Updated Nov 02, 2023: Early access published.
  5. Updated Oct 24, 2023: Our testers have started testing this product.
  6. Updated Oct 03, 2023: The product has arrived in our lab, and our testers will start evaluating it soon.
  7. Updated Sep 28, 2023: 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 27GR93U, and the results are only valid for this review. While there's the 32-inch LG 32GR93U-B also available, it's a separate monitor.

Model Size Panel Type Resolution Max Refresh Rate
27GR93U-B 27" IPS 4k 144Hz

Our unit was manufactured in June 2023; you can see the label here.

Compared To Other Monitors

The LG 27GR93U-B is a good all-around 4k monitor that offers HDMI 2.1 bandwidth, VRR support, and a 144Hz refresh rate, so it's great for console gaming, but it isn't as ideal for competitive PC gaming. It also has limited picture quality due to its low contrast and lack of local dimming. While it has slightly worse motion handling than the larger LG 32GR93U-B, it's a good alternative if you want something cheaper and smaller. That said, it isn't as versatile as the Gigabyte M27U for other uses like work, so that monitor is the better choice if you want something for better value that costs less and has extra features.

See our recommendations for the best 4k gaming monitors, the best 4k 144Hz monitors, and the best 32-inch monitors.

Gigabyte M27U

The LG 27GR93U-B and the Gigabyte M27U are both excellent 4k gaming monitors. They have many similar features, especially for gaming, but the LG supports higher HDMI bandwidth, so it doesn't need to use compression for demanding signals like on the Gigabyte. That said, the Gigabyte has a few extra features for productivity, like a USB-C port and KVM switch, making it the better choice for multitasking with different devices.

LG 27GP950-B

The LG 27GP950-B is a higher-end monitor than the LG 27GR93U-B, so it has a few extra features, but they perform similarly otherwise. They each have a native 144Hz refresh rate, but the 27GP950-B has an overclock feature to go up to 160Hz. That said, the motion handling is similar between each. The 27GP950-B also has a local dimming feature, which the 27GR93U-B doesn't have, and it allows it to get brighter in HDR, but the local dimming feature is terrible overall. On the other hand, the 27GR93U-B has better reflection handling and gets brighter, making it the better choice for use in well-lit rooms.

LG 32GR93U-B

The LG 32GR93U-B and the LG 27GR93U-B are similar mid-range monitors, with one of the main differences being their sizes. There are still some differences in performance, though, as the 32-inch model has better motion handling, and it also has better HDR color volume for more vivid colors. Another difference is that the 27-inch model has improved brightness, but the 32-inch model has better reflection handling.

Samsung Odyssey G7/G70B S32BG70

The Samsung Odyssey G7/G70B S32BG70 and the LG 27GR93U-B are both excellent 4k, 144Hz gaming monitors. The Samsung has an advantage with motion handling as it has a faster response time at lower refresh rates, but the LG has lower input lag at 60Hz. The Samsung has a bigger 32-inch screen, but that means it has lower pixel density and slightly worse pixel density. Besides that, the LG gets brighter and has better reflection handling, so it's the better choice for use in well-lit rooms.

ASUS ROG Swift PG27UQR

The ASUS ROG Swift PG27UQR and the LG 27GR93U-B are both excellent 4k gaming monitors. The ASUS has a slightly higher 160Hz refresh rate compared to 144Hz on the LG, but the motion handling is similar between each. The LG does have an advantage with input lag though, as it has lower input lag at 60Hz than the ASUS. The LG gets brighter in SDR and has slightly better reflection handling, so it's better to use in bright rooms, but the ASUS has improved HDR peak brightness.

+ Show more

Test Results

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

The LG 27GR93U-B has a rather simple design with a dark gray body. The back features a honeycomb pattern, and it has some RGB lighting that you can change with presets. Unfortunately, there's a silver reflective strip underneath the bottom bezel, which can be distracting if you have a bright light source in your room.

7.5
Design
Build Quality

The build quality is good. There aren't any obvious quality control issues, but the bottom bezel isn't perfectly flush with the screen. That said, it isn't an issue unless you care about perfect aesthetics. The plastic materials are solid, and while the screen wobbles a bit on the stand, it stabilizes quickly.

7.5
Design
Ergonomics
Min Height To Top Of Panel
18.1" (45.9 cm)
Height Adjustment
4.3" (11.0 cm)
Tilt Range
-15° to 5°
Rotate Portrait/Landscape
Yes, Clockwise
Swivel Range
No swivel
Wall Mount
VESA 100x100

The ergonomics are good, but without swivel adjustment, you can't easily turn it to show the screen to someone next to you. You can only rotate into portrait mode in a clockwise direction, which means the inputs are always on top. The stand also has a clip for cable management.

Design
Stand
Base Width
17.5" (44.4 cm)
Base Depth
10.2" (25.8 cm)
Thickness (With Display)
7.8" (19.9 cm)
Weight (With Display)
13.8 lbs (6.3 kg)

The stand features V-shaped feet, with enough space to put your peripherals between them. The stand supports the screen well, but there's still wobble.

Design
Display
Size
27"
Housing Width
24.2" (61.4 cm)
Housing Height
14.6" (37.1 cm)
Thickness (Without Stand)
2.0" (5.1 cm)
Weight (Without Stand)
9.8 lbs (4.4 kg)
Borders Size (Bezels)
0.3" (0.8 cm)
Design
Controls

There's a single joystick underneath the center of the screen to control the on-screen display.

Design
In The Box
Power Supply
External Brick

  • DisplayPort cable
  • HDMI cable
  • USB-B cable
  • Power supply
  • Mouse bungee clip (not pictured)
  • User documentation

Picture Quality
6.0
Picture Quality
Contrast
Native Contrast
1,020 : 1
Contrast With Local Dimming
N/A

The LG 27GR93U-B has a mediocre contrast ratio. Blacks look gray next to bright highlights, and it doesn't have a local dimming feature to improve it.

0
Picture Quality
Local Dimming
Local Dimming
No
Backlight
Edge

This monitor doesn't have a local dimming feature. Although it has a Variable Backlight setting, it only boosts the contrast level in HDR and doesn't turn off any dimming zones. We still film these videos on the monitor so that you can compare the backlight performance with a monitor that has local dimming.

8.4
Picture Quality
SDR Brightness
Real Scene
438 cd/m²
Peak 2% Window
470 cd/m²
Peak 10% Window
471 cd/m²
Peak 25% Window
471 cd/m²
Peak 50% Window
471 cd/m²
Peak 100% Window
471 cd/m²
Sustained 2% Window
470 cd/m²
Sustained 10% Window
471 cd/m²
Sustained 25% Window
471 cd/m²
Sustained 50% Window
471 cd/m²
Sustained 100% Window
471 cd/m²
Automatic Brightness Limiting (ABL)
0.000
Minimum Brightness
80 cd/m²

The SDR brightness is impressive. It easily gets bright enough to fight glare, and it maintains its brightness consistently across different content. That said, its minimum brightness is high, which is disappointing if you want to use it in a dark room and you're sensitive to bright lights. These results are from after calibration in the 'Gamer 1' Game Mode with the Brightness at its max.

7.3
Picture Quality
HDR Brightness
VESA DisplayHDR Certification
DisplayHDR 400 - 1.0/1.1
Real Scene
501 cd/m²
Peak 2% Window
532 cd/m²
Peak 10% Window
533 cd/m²
Peak 25% Window
534 cd/m²
Peak 50% Window
534 cd/m²
Peak 100% Window
535 cd/m²
Sustained 2% Window
531 cd/m²
Sustained 10% Window
532 cd/m²
Sustained 25% Window
533 cd/m²
Sustained 50% Window
534 cd/m²
Sustained 100% Window
534 cd/m²
Automatic Brightness Limiting (ABL)
0.000

The LG UltraGear 27GR93U-B has decent HDR brightness. While it gets bright, small highlights don't pop against the rest of the image because it lacks a local dimming feature. It struggles with EOTF tracking as dark scenes are overbrightened, and it has an early roll-off, so highlights don't get very bright. These results are in the 'Gamer 1' Game Mode with the Brightness at its max.

7.7
Picture Quality
Horizontal Viewing Angle
Color Washout From Left
40°
Color Washout From Right
39°
Color Shift From Left
46°
Color Shift From Right
47°
Brightness Loss From Left
44°
Brightness Loss From Right
45°
Black Level Raise From Left
70°
Black Level Raise From Right
70°
Gamma Shift From Left
40°
Gamma Shift From Right
39°

The horizontal viewing angle is good. It's a great choice if you need to share your screen with someone sitting next to you, as they'll see a consistent image from the sides.

7.9
Picture Quality
Vertical Viewing Angle
Color Washout From Below
34°
Color Washout From Above
38°
Color Shift From Below
43°
Color Shift From Above
54°
Brightness Loss From Below
37°
Brightness Loss From Above
42°
Black Level Raise From Below
70°
Black Level Raise From Above
70°
Gamma Shift From Below
55°
Gamma Shift From Above
60°

The vertical viewing angle is good. While the viewing angles aren't consistently the same when viewing from the top or bottom, you won't notice any issues.

7.6
Picture Quality
Gray Uniformity
50% Std. Dev.
3.812%
50% DSE
0.153%

The gray uniformity is good. Although the edges of the screen are darker than the rest, there's a minimal amount of dirty screen effect in the center, which is great.

7.0
Picture Quality
Black Uniformity
Native Std. Dev.
1.280%
Std. Dev. w/ L.D.
N/A

The black uniformity is decent. As it has a low contrast ratio and lacks a local dimming feature, blacks look gray. However, there isn't too much backlight bleed or blooming around bright objects.

8.4
Picture Quality
Color Accuracy (Pre-Calibration)
Picture Mode
sRGB
sRGB Gamut Area xy
105.9%
White Balance dE (Avg.)
2.54
Color Temperature (Avg.)
6,885 K
Gamma (Avg.)
2.27
Color dE (Avg.)
1.78
Contrast Setting
N/A
RGB Settings
50-50-50
Gamma Setting
Default
Brightness Setting
16
Measured Brightness
140 cd/m²
Brightness Locked
No

The LG UltraGear 27GR93U-B has impressive accuracy before calibration in the sRGB mode. The white balance and most colors are only slightly inaccurate, but some primary colors are slightly oversaturated. The color temperature is a bit on the cold side, and gamma is higher than the target sRGB curve, so most content is slightly darker than intended. Unfortunately, the 'sRGB' Game Mode locks many settings, including Response Time, so if you want to use any of those settings, you'd have to use another picture mode that has more oversaturated colors, as you can see here.

9.8
Picture Quality
Color Accuracy (Post-Calibration)
Picture Mode
Gamer 1
sRGB Gamut Area xy
99.9%
White Balance dE (Avg.)
0.48
Color Temperature (Avg.)
6,488 K
Gamma (Avg.)
2.17
Color dE (Avg.)
0.36
Contrast Setting
70
RGB Settings
48-50-49
Gamma Setting
Mode 2
Brightness Setting
6
Measured Brightness
100 cd/m²
ICC Profile
Download

The accuracy after calibration is fantastic. There are minimal inaccuracies, and you can use any of the settings that were locked out in the sRGB mode.

9.6
Picture Quality
SDR Color Gamut
sRGB Coverage xy
99.7%
sRGB Picture Mode
Gamer 1
Adobe RGB Coverage xy
91.7%
Adobe RGB Picture Mode
Gamer 1

The SDR color gamut is incredible. It has perfect coverage of the common sRGB color space, and it also has excellent coverage of the Adobe RGB color space used in publishing. However, it oversaturates most colors in that color space, except cyans and blues, which are undersaturated.

8.9
Picture Quality
HDR Color Gamut
Wide Color Gamut
Yes
DCI-P3 Coverage xy
95.9%
DCI-P3 Picture Mode
Gamer 1
Rec. 2020 Coverage xy
70.9%
Rec. 2020 Picture Mode
Gamer 1

The HDR color gamut is amazing. It has remarkable coverage of the DCI-P3 color space, but it struggles with tone mapping as most colors are off. The coverage in the wider Rec. 2020 color space is decent, but once again, it has some problems with tone mapping, as most colors are undersaturated.

7.4
Picture Quality
HDR Color Volume
1,000 cd/m² DCI-P3 Coverage ICtCp
59.8%
DCI-P3 Picture Mode
Gamer 1
10,000 cd/m² Rec. 2020 Coverage ICtCp
30.4%
Rec. 2020 Picture Mode
Gamer 1

The LG UltraGear 27GR93U-B has a decent HDR color volume. However, because it has limited HDR peak brightness and a low contrast ratio, it can't display very bright and dark colors well.

9.0
Picture Quality
Text Clarity
Pixel Type
IPS
Subpixel Layout
RGB

The text clarity is fantastic. Its high pixel density helps result in sharp text, and enabling Windows ClearType (top photo) improves the clarity. These photos are in Windows 10, and you can see them in Windows 11 with ClearType on and with ClearType off.

8.1
Picture Quality
Reflections
Screen Finish
Matte
Total Reflections
4.7%
Indirect Reflections
3.6%
Calculated Direct Reflections
1.1%

The reflection handling is great. Combined with its high peak brightness, you won't have many issues using it in a well-lit room.

9.8
Picture Quality
Gradient
Color Depth
10 Bit

The LG UltraGear 27GR93U-B has remarkable gradient handling. There's almost no banding in areas of similar color.

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
144 Hz

To reach the monitor's max refresh rate over DisplayPort, your graphics card needs to support Display Stream Compression (DSC), which any NVIDIA 16 Series or AMD RX 5000 Series and newer graphics card supports.

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<20Hz144Hz

AMDVRR MinVRR Max
DisplayPort<20Hz144Hz
HDMI<20Hz144Hz

Besides supporting FreeSync and G-SYNC compatibility, the monitor also supports HDMI Forum VRR.

7.8
Motion
VRR Motion Performance
Recommended VRR OD Setting
Normal
Variable Overdrive Advertised
No
Avg. CAD
171
Best CAD
164
Worst CAD
186

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

The LG 27GR93U-B has good motion handling across its entire refresh rate range with VRR enabled. Although the 'Fast' overdrive setting performs best at its max refresh rate, the 'Normal' setting is the most consistent as the refresh rate drops, with good CAD and not too much motion blur. The 'Faster' overdrive setting performs so badly that it passes the limits of the graph, as you can see here.

7.7
Motion
Refresh Rate Compliance
Compliance @ Max Hz
57%
Compliance @ 120 FPS
62%
Compliance @ 60 FPS
78%

The refresh rate compliance is good. Although its response time struggles to keep up with its max refresh rate, this is typical of most LCD monitors, and it gets better with lower frame rates.

7.9
Motion
CAD @ Max Refresh Rate
OD Transition Max Refresh Rate
Recommended Overdrive Setting
Fast
Avg. CAD
156
Best 10% CAD
82
Worst 10% CAD
240

Overdrive ModeCAD HeatmapRT ChartPursuit Photo
OffHeatmapChartPhoto
NormalHeatmapChartPhoto
FastHeatmapChartPhoto
FasterHeatmapChartPhoto

The CAD at the max refresh rate is very good. Even though the 'Fast' overdrive setting has a bit more overshoot than 'Normal', it's still within an acceptable an amount and has lower CAD, whereas the 'Faster' overdrive setting has too much overshoot.

Motion
Response Time @ Max Refresh Rate
Recommended Overdrive Setting
Fast
First Response Time
4.8 ms
Total Response Time
6.7 ms
RGB Overshoot
4 RGB
Worst 10% First Response Time
7.4 ms
Worst 10% Total Response Time
11.1 ms
Worst 10% RGB Overshoot
17 RGB

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

7.8
Motion
CAD @ 120Hz
OD Transition 120Hz
Recommended Overdrive Setting
Normal
Avg. CAD
163
Best 10% CAD
86
Worst 10% CAD
235

Overdrive ModeCAD HeatmapRT ChartPursuit Photo
OffHeatmapChartPhoto
NormalHeatmapChartPhoto
FastHeatmapChartPhoto
FasterHeatmapChartPhoto

The CAD at 120Hz is very good. Unlike at its max refresh rate, the 'Normal' overdrive setting has the lowest CAD, which means you may have to change the setting if the frame rate of your game drops or you change games. 'Fast' actually has the same CAD, but there's more overshoot causing inverse ghosting.

Motion
Response Time @ 120Hz
Recommended Overdrive Setting
Normal
First Response Time
5.6 ms
Total Response Time
6.3 ms
RGB Overshoot
1 RGB
Worst 10% First Response Time
8.2 ms
Worst 10% Total Response Time
10.4 ms
Worst 10% RGB Overshoot
9 RGB

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

7.3
Motion
CAD @ 60Hz
OD Transition 60Hz
Recommended Overdrive Setting
Normal
Avg. CAD
186
Best 10% CAD
87
Worst 10% CAD
327

Overdrive ModeCAD HeatmapRT ChartPursuit Photo
OffHeatmapChartPhoto
NormalHeatmapChartPhoto
FastHeatmapChartPhoto
FasterHeatmapChartPhoto

The CAD at 60Hz is decent. Although the recommended overdrive setting of 'Normal' has the lowest CAD, it has some inverse ghosting, so if that bothers you, it's better to use the 'Off' setting, which has a similar CAD and has the fastest total response time.

Motion
Response Time @ 60Hz
Recommended Overdrive Setting
Normal
First Response Time
5.5 ms
Total Response Time
11.9 ms
RGB Overshoot
4 RGB
Worst 10% First Response Time
7.9 ms
Worst 10% Total Response Time
20.9 ms
Worst 10% RGB Overshoot
15 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

This monitor has no optional backlight strobing feature to reduce persistence blur.

9.1
Motion
VRR Flicker
Dark Gray Flicker
0.8 RGB
Middle Gray Flicker
0.3 RGB
Light Gray Flicker
0.5 RGB

The LG 27GR93U-B has minimal VRR flicker with changing frame rates, which is fantastic.

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

The backlight remains flicker-free at all brightness levels, which helps reduce eye strain if you're sensitive to it.

Inputs
8.8
Inputs
Input Lag
Native Resolution @ Max Hz
4.5 ms
Native Resolution @ 120Hz
5.0 ms
Native Resolution @ 60Hz
9.7 ms
Backlight Strobing (BFI)
N/A

The LG 27GR93U has low input lag for a responsive feel while gaming.

8.8
Inputs
Resolution
Native Resolution
3840 x 2160
Aspect Ratio
16:9
Megapixels
8.3 MP
Pixel Density
163 PPI
10
Inputs
PS5 Compatibility
4k @ 120Hz
Yes
4k @ 60Hz
Yes
1440p @ 120Hz
Yes
1440p @ 60Hz
Yes
1080p @ 120Hz
Yes
1080p @ 60Hz
Yes
9.7
Inputs
Xbox Series X|S Compatibility
4k @ 120Hz
Yes
4k @ 60Hz
Yes
1440p @ 120Hz
Yes
1440p @ 60Hz
Yes
1080p @ 120Hz
Yes
1080p @ 60Hz
Yes

This monitor works well with the Xbox Series X|S, but you need to enable the HDMI override setting on the console for 1440p @ 60Hz to work, which also disables VRR. Keep in mind that the Xbox doesn't support HDR with 1080p or 1440p signals, so this isn't an issue with the monitor.

Inputs
Inputs Photos
Inputs
Video And Audio Ports
DisplayPort
1 (DP 1.4)
Mini DisplayPort
No
HDMI
2 (HDMI 2.1)
HDMI 2.1 Rated Speed
48Gbps (FRL 12x4)
DVI
No
VGA
No
Daisy Chaining
No
3.5mm Audio Out
1
3.5mm Audio In
No
HDR10
Yes
3.5mm Microphone In
No

The 3.5mm audio output serves as a combo jack with audio out and mic in, but you need to have the USB-B cable connected to your computer to fully use it. It also supports DTS Headphones:X audio passthrough for headphones that support it.

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
Inputs
macOS Compatibility

The LG 27GR93U works well with macOS. Although it defaults to a 1080p resolution, you just need to change it to a 4k resolution. With a USB-C to DisplayPort cable, there's a bug with VRR where there's a grey bar that appears on top, which causes VRR to stop working. You need to exit the full-screen mode and go back in for it to work properly again. Over HDMI with an HDMI 2.1 MacBook, the max refresh rate is 144Hz without VRR, but it's limited to a max of 120Hz with VRR. If you're using a MacBook with either type of connection, windows return to their original position when reopening the lid or waking it up from sleep.

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

The LG 27GR93U has a few extra features, including:

  • Black Stabilizer: Adjusts the gamma so that it's easier to see opponents in dark areas.
  • Crosshair: Adds a virtual crosshair that your game's anti-cheat tool won't detect, giving you a competitive advantage.
  • DFC: Changes the contrast based on the content.
  • DTS:X Headphones: The monitor offers a few different sound modes to use with DTS:X compatible devices.
  • Hexagon Lighting: This is the setting to adjust the RGB lighting on the back of the monitor.
  • Variable Backlight: Boosts the contrast level in HDR, but it isn't a local dimming setting.

Features
On-Screen Display (OSD)