The LG 27GP950-B is a 27 inch 4k monitor with a fast 160Hz refresh rate. It's part of LG's UltraGear lineup of gaming monitors and is one of the first monitors on the market to support HDMI 2.1 bandwidth, making it a great choice for next-gen console gamers. It delivers an excellent gaming experience with low input lag, a fast response time, and support for both NVIDIA and FreeSync Premium Pro variable refresh rate technology. Unfortunately, it has disappointing reflection handling, and like most IPS monitors, it's not a great choice for a dark room, as it has low contrast and poor black uniformity. It also has a local dimming feature, but it doesn't do much to improve the picture quality.
The LG 27GP950 is a great monitor for most uses. The large, high-resolution screen is great for office use or media creation, and it has a superb color gamut in SDR and incredible gradient handling. It's an excellent gaming monitor with low input lag and a fast response time. It's also decent for HDR, with a wide HDR color gamut and high peak brightness, but blacks look gray in dark rooms.
The LG 27GP950 is a very good monitor for office use. The high-resolution screen delivers outstanding text clarity, and it has excellent gray uniformity. It has wide viewing angles, great if you often share your screen, but the stand can't swivel. Unfortunately, it has disappointing reflection handling, but it's still bright enough to overcome glare in most viewing conditions.
The LG 27GP950 is an excellent gaming monitor. It has a fantastic response time at the max refresh rate and low input lag for a responsive gaming experience. It supports both FreeSync and G-SYNC variable refresh rates, ensuring a nearly tear-free gaming experience from almost any source. It also has HDMI 2.1 bandwidth on two ports, making it a great choice for next-gen console gamers.
The LG 27GP950-B is a very good monitor for watching videos. The large, high-resolution screen delivers a more immersive movie-watching experience, and the wide viewing angles are great for watching videos with a few friends. Unfortunately, it doesn't look as good in a dark room due to its low contrast ratio and poor black uniformity.
The LG 27GP950 is a great monitor for media creation. The large, high-resolution screen makes it easier to see more of your workflow at once, and the wide viewing angles are great if you often share your screen. It has a superb color gamut in SDR, including good coverage of the Adobe RGB color space, and it has incredible gradient handling. Unfortunately, it has low contrast and poor black uniformity, and the stand can't swivel.
The LG 27GP950 is decent for HDR content. It displays a wide range of colors in HDR, and it has great peak brightness, so highlights pop and colors are vivid. However, it doesn't display deep blacks in dark rooms, and it has a terrible local dimming feature that doesn't do much to improve the picture quality, so it's not a good choice for watching HDR content in dark rooms.
The LG UltraGear 27GP950 has a very similar style to the other 2021 LG UltraGear monitors. The chevron-shaped stand is pretty wide but doesn't take up a ton of space, and it supports the monitor fairly well. There's a ring of RGB bias-lighting on the back of the monitor, which can be synced with video or audio playing on your PC.
The LG 27GP950 has decent build quality overall, very similar to the other UltraGear monitors we've tested. It's almost entirely plastic, and there's some flex on the back, but nothing concerning. The stand is fairly stable, but as you increase the height extension there's more and more wobble.
The LG 27GP950 has decent ergonomics. It has a good height adjustment and an okay tilt range, so you won't have trouble placing it in an ideal position unless you need to turn the screen as it doesn't offer swivel adjustment. Also, you can only rotate to portrait orientation in one direction, so the inputs will always be on the top.
The back of the monitor is pretty plain overall. There's a ring of RGB bias-lighting, which LG calls Sphere Lighting 2.0. You can sync the lighting with audio or video from your PC. You can also customize it yourself through LG's software or the physical wheel on the bottom of the monitor. There's a ring of vents around the bias-lighting ring, and there's a fan built-in, which is quiet. There's a hook on the back of the display for cable management, but it's not very effective overall.
The stand is wide but doesn't take up a lot of space, so you can still place other things in front of the monitor. The stand supports the monitor well but wobbles a bit, especially at the maximum height extension.
The joystick control under the front bezel of the monitor is used to navigate the OSD. There's also a jog wheel and switch that's used to adjust the RGB bias-lighting feature.
As expected for an IPS monitor, the LG 27GP950 has mediocre contrast, and blacks look gray in a dark room. Unfortunately, the local dimming feature is ineffective at boosting contrast with our checkerboard pattern due to the large zone size.
Unfortunately, although the LG 27GP950-B has a local dimming feature, it's terrible. It has about 16 zones, so each zone covers a relatively large area of the screen. Due to the large size, any object on the screen causes an entire column of the screen to light up, resulting in significant blooming. With most real content, this isn't that noticeable, as all zones are usually lit up. On the other hand, there's absolutely no black crush, with no loss of fine details in some scenes.
The speed of the local dimming feature can be adjusted between three different settings. We did our testing with it set to 'Faster', as this mode delivers the best results with fast-moving objects, but the zone transitions are quite noticeable and can be jarring in some cases. Lower settings average out the backlight across more zones, so this isn't as noticeable, but the local dimming feature isn't as noticeable or effective then.
The LG 27GP950 has great peak brightness in SDR, and it's bright enough to overcome glare in most bright rooms, despite its disappointing reflection handling. Unfortunately, with local dimming enabled the monitor dims our 25% window briefly. This isn't noticeable with regular content, and even with the test pattern, it returns to normal quickly. With local dimming disabled, there's almost no variation in brightness with different scenes or over time, and all scenes are around 400 cd/m². Sadly, its minimum brightness is high, which isn't ideal if you want to use it in a completely dark room and you're sensitive to bright lights.
These measurements are from after calibration in the 'Gamer 1' Picture Mode with Brightness set to max, and Local Dimming set to 'Faster'.
The LG 27GP950-B has great peak brightness in HDR. It's bright enough to deliver an impactful gaming experience in HDR, and it's bright enough for some video content. However, it can't maintain a high brightness level with large, bright scenes, and there's a significant decrease in brightness over time. The EOTF follows the target PQ curve perfectly until the peak brightness, where there's a slow roll-off, so you don't lose too many details in bright highlights.
These measurements are in the 'Gamer 1' Picture Mode with HDR enabled, Local Dimming set to 'Faster', and Brightness set to max.
As expected for an IPS panel, the LG 27GP950-B has a good horizontal viewing angle. If you're sitting off to the side, the image can appear washed out, but when sitting close to the screen, the sides remain uniform.
The LG 27GP950 has a very good vertical viewing angle. The image appears a bit washed out at a moderate angle, but this shouldn't cause any issues for most people.
The LG 27GP950 has good gray uniformity. The sides of the screen are a bit darker than the center, but there's very little dirty screen effect in the center.
Unfortunately, the LG 27GP950 we bought has poor black uniformity, but this can vary between units. The screen is cloudy throughout, and there are patches of backlight bleed in all four corners. Sadly, local dimming does very little to improve black uniformity.
The LG 27GP950-B has excellent accuracy out of the box. It has an sRGB mode that clamps the colors to the sRGB color space, so they're not over-saturated, and most colors are accurate. The white balance is a bit more off though, which affects the shades of white and gray. The color temperature is cold, giving the image a blue tint, and the gamma isn't the best as most scenes are darker than intended. The sRGB mode locks most picture settings, and if that bothers you, you can use the Gamer 1 Picture Mode, but that results in a less accurate image as the colors are too over-saturated and the color temperature is even colder.
The LG 27GP950-B has outstanding accuracy after calibration. Gamma follows the sRGB gamma curve well, but some scenes are still a bit off. Colors and white balance are nearly perfect, and any remaining issues aren't noticeable without a colorimeter. Unlike the vast majority of monitors, the 27GP950-B supports hardware calibration through LG's Calibration Studio, so you can get an accurate image from any source, even if the source doesn't support ICC profiles.
The LG UltraGear 27GP950 has a superb SDR color gamut. It can display the entire sRGB color gamut used by most current desktop and web content. It also has good coverage of the wider Adobe RGB color space but falls short on greens especially.
The LG 27GP950-B has fantastic SDR color volume. It can display the entire range of sRGB colors at most luminance levels, but due to the low contrast ratio, it can't display dark saturated colors very well.
The LG 27GP950-B has an excellent HDR color gamut. It has nearly perfect coverage of the DCI P3 color space used by most current HDR content. However, it has disappointing coverage of the wider Rec. 2020 color space, which isn't ideal as more content will start to come out with this color space.
This monitor has fantastic color volume in HDR. It's limited mainly by the incomplete color gamut, but most colors are as bright as pure white. Unfortunately, it can't display dark saturated colors very well, due to the low contrast ratio.
Unfortunately, the LG 27GP950 has disappointing reflection handling. Bright lights can be distracting, but it's bright enough to overcome most glare.
The LG 27GP950 has outstanding text clarity. Running the ClearType wizard helps clean up diagonal lines (top photo), but it still looks good in apps that don't support ClearType.
The LG 27GP950 has incredible gradient handling. There are almost no signs of banding in any shade.
This monitor has an extremely fast refresh rate and an optional overclock. The overclock can only be enabled if Adaptive Sync is enabled, which is a bit strange. Over HDMI 2.1, the max refresh rate is 120Hz, and DisplayPort requires a graphics card that supports DSC 1.2a.
The LG 27GP950-B supports AMD's FreeSync Premium Pro variable refresh rate technology, but it's also certified to work with recent NVIDIA graphics cards over both HDMI and DisplayPort.
|Overdrive Setting||Response Time Chart||Response Time Tables||Motion Blur Photo|
The LG 27GP950 has an excellent response time at the max refresh rate of 160Hz. Like most monitors, the pixel overdrive can be adjusted, and the best setting is 'Fast'. It has a quicker total response time than 'Normal' and much less overshoot than 'Faster'. It still does have overshoot, and 'Normal' is better at lower refresh rates, so if you want a 'set an forget' mode, use 'Normal'.
|Overdrive Setting||Response Time Chart||Response Time Tables||Motion Blur Photo|
The response time at 120Hz is excellent, so motion looks smooth on the Xbox Series X and PS5. Unlike at its max refresh rate, the best overdrive setting is 'Normal' because 'Fast' is actually slower and it introduces overshoot.
|Overdrive Setting||Response Time Chart||Response Time Tables||Motion Blur Photo|
The LG 27GP950-B has an impressive response time at 60Hz. The various overdrive settings perform like at 120Hz, so the best setting is once again 'Normal' as it has the quickest response time and only has a minimal amount of overshoot.
Unfortunately, the LG 27GP950 doesn't have an option to introduce backlight strobing to improve motion clarity.
The backlight is completely flicker-free at all backlight settings, which is great, as it can help reduce eye strain during longer gaming sessions. There are a few reports online of random black screens while gaming, usually with VRR enabled. We've tried to reproduce this issue on our unit but weren't able to. It seems to vary between units and possibly indicates a defective unit.
The LG 27GP950 has remarkably low input lag, resulting in a very responsive gaming experience. We encountered a strange issue during testing. For the overclock to work properly, Adaptive Sync has to be enabled in the OSD and on your PC. With VRR disabled on the PC, the monitor appears to actually be running at 80Hz and doubling every frame. This issue is only noticeable at the max refresh rate, even with the overclock enabled. The issue isn't there at a lower refresh rate, even if the overclock is still enabled. Running the overclock with VRR disabled causes the input lag to increase to 7.8ms.
The LG 27GP950-B has a large, high-resolution screen that's great for multitasking. It has a very high pixel density that delivers a sharp image with very clear text.
This monitor displays any signal from the PS5 without issue, including 4k @ 120Hz.
The LG 27GP950-B doesn't have any issue with all common signals from the Xbox Series X. 1440p @ 60Hz has to be manually enabled from the Xbox because it isn't natively supported with the monitor, but it works as expected once you enable it.
The LG UltraGear 27GP950 has two HDMI 2.1 ports that support the full bandwidth HDMI 2.1 of 48 Gbps. It has even higher bandwidth than some other HDMI 2.1 monitors like the Gigabyte M28U, so you can use any HDMI 2.1 compatible graphics card to achieve high-frame-rate signals, and you won't have to worry about whether or not it supports compression. This is particularly an advantage for PS5 owners because the console doesn't support compression, so it displays chroma 4:2:2 signals instead of 4:2:0, which results in clearer text.
When connected with a recent Mac computer, the LG 27GP950-B has a max refresh rate of 144Hz, but it can't be overclocked to 160Hz. There aren't any issues with the VRR and HDR support, and when you're not gaming and still have the VRR support enabled, the refresh rate stays at 144Hz. When waking up a MacBook from sleep, sometimes the windows would all move to the laptop, and other times it would stay on the monitor. Also, the default resolution is 1920 x 1080, so you need to adjust it to get a 4k resolution.
The LG 27GP950-B comes with a few extra features, including:
The LG 27GP950 has a very similar interface to the other LG monitors we've tested recently. You can navigate most of the on-screen display using the joystick located under the bottom bezel of the monitor.
There's also a wheel controller that you can use to adjust the backlight setting. Note that some of the backlight settings require the LG Ultra Control Center software on your computer, and the monitor must be connected to your computer with the USB upstream cable (included) for the control software to work.
We tested the LG 27GP950-B 27 inch gaming monitor, which is part of LG's UltraGear gaming lineup and is the only one with HDMI 2.1. There are many other monitors in LG's UltraGear lineup with various configurations, some of which you can see in the table below. As they each have different specs, we don't expect our review to be valid for any of the other models.
|Model||Size||Panel Type||Resolution||Max Refresh Rate|
|34GP950G||34"||IPS||3440 x 1440||180Hz|
|34GP83A-B||34"||IPS||3440 x 1440||160Hz|
|32GP850-B||32"||IPS||2560 x 1440||180Hz|
|27GP950-B||27"||IPS||3840 x 2160||160Hz|
|27GP850-B||27"||IPS||2560 x 1440||180Hz|
If someone comes across a different type of panel or their LG 27GP950 doesn't correspond to our review, let us know and we'll update the review. Note that some tests, like gray uniformity, may vary between individual units.
Our unit was manufactured in July 2021; you can see the label here.
The LG 27GP950-B is an impressive gaming monitor, and one of the few currently available that support HDMI 2.1, making it an especially great choice for console gamers. It doesn't stand out much for PC gamers, though, so if you're not interested in console gaming, there are better choices available.
The Gigabyte M28U is slightly better than the LG 27GP950-B overall, but some people might prefer the LG. The Gigabyte has much better reflection handling, so glare isn't as distracting in a bright room, and it has an optional backlight strobing feature. On the other hand, the LG has a faster refresh rate and better motion handling with 60Hz sources. The LG's HDMI 2.1 ports support the full bandwidth of HDMI 2.1, so it's also a slightly better choice for PS5 gamers.
The LG 27GP950-B and the Samsung Odyssey G7 S28AG70 are both high-end 4k gaming monitors. They have many of the same features with HDMI 2.1 inputs, and even though their native refresh rates are both 144Hz, the LG is overclockable to 160Hz. The LG also has better motion handling at 60Hz, and it gets much brighter, especially in HDR. The HDMI 2.1 inputs on the LG support a higher 48 Gbps bandwidth compared to 40 Gbps from the Samsung, but it doesn't make a difference unless you need to achieve 4k @ 120Hz signals with 12-bit color depth. On the other hand, the Samsung has better ergonomics because you can swivel it.
The Gigabyte M32U is a bit better than the LG 27GP950-B overall. The Gigabyte has much better reflection handling, so it's better able to overcome glare in a bright room. The Gigabyte also has better black uniformity and better ergonomics. On the other hand, the LG is a lot brighter in HDR, and it can display a wider color gamut.
The LG 27GP950-B is slightly better than the LG 27GN950-B. The 27GP950-B has two HDMI 2.1 ports, so it's a better choice for PS5 or Xbox Series X gamers. The 27GP950-B is also a lot brighter in real scenes in HDR, and it has a much better HDR color gamut, with significantly better DCI P3 coverage.
The LG 27GP950-B is slightly better than the LG 27GP850-B. The 27GP950-B has a higher resolution screen, delivering a more immersive gaming experience and better text clarity. The 27GP950-B also has two HDMI 2.1 ports, making it a better choice for next-gen console gamers. On the other hand, the 27GP850-B has much better reflection handling, so it might be a better choice if you're in a bright room.
The LG 27GP950-B and the Samsung Odyssey G7 LC32G75T use different panel technologies, each with strengths and weaknesses, so the best one varies depending on your exact usage. The LG has an IPS panel with wide viewing angles and a higher-resolution screen. The LG has two HDMI 2.1 ports, so it's a better choice for next-gen console gamers. The Samsung uses a VA panel, and it's a much better choice for a dark room, as it has much higher contrast and better black uniformity.
The ASUS ROG Strix XG27UQ is better than the LG 27GP950-B overall, but some gamers might still be better off with the LG. The ASUS has an optional backlight strobing feature, better ergonomics, and better reflection handling. The LG, on the other hand, has a faster refresh rate, a faster response time, and it supports HDMI 2.1, so it's a better choice for gaming on the PS5 or Xbox Series X.
The Acer Nitro XV282K KVbmiipruzx is a bit better than the LG 27GP950-B. The Acer has much better ergonomics, an optional backlight strobing feature, and much better reflection handling. On the other hand, the LG has a faster refresh rate and better motion handling with 60Hz sources. The LG's HDMI 2.1 ports support the full bandwidth of HDMI 2.1, so it's also a slightly better choice for PS5 gamers.
The LG 27GP950-B is better than the LG 27GL850-B. The 27GP950-B has a higher resolution screen, resulting in better text clarity, and it has two HDMI 2.1 ports, making it a better choice if you have or are planning to get one of the next-gen consoles. On the other hand, the 27GL850 has much better reflection handling.
The LG 27GP950-B is a bit better than the Gigabyte M27Q for most uses. The LG has a higher resolution screen and much better text clarity, so it's a bit better for media creators or office use. The LG also has two HDMI 2.1 ports, making it a better choice for PS5 or Xbox Series X gamers. On the other hand, the Gigabyte has better reflection handling and an optional backlight strobing feature.
The Gigabyte AORUS FI32U is slightly better than the LG 27GP950-B overall. The Gigabyte has an optional backlight strobing feature, better ergonomics, better reflection handling, and the unit we bought has better black uniformity. On the other hand, the LG has lower input lag at 60Hz, so it's more responsive when gaming on older consoles.
The LG 27GP950-B and the Apple Studio Display are both high-resolution 27 inch monitors meant for different uses. The LG has many more gaming features like a higher refresh rate panel, HDMI 2.1 bandwidth, and variable refresh rate support to reduce screen tearing. It also has HDMI ports so you can connect gaming consoles. However, the Apple is meant for content creators with macOS devices as it has outstanding out-of-the-box accuracy, and it easily gets bright enough to fight glare in well-lit rooms.
The LG 27GP950-B and the Dell G3223Q are similar 4k monitors with 144Hz refresh rates, but there are a few differences. The Dell has much better reflection handling, so it's a better choice for well-lit rooms, and it has much better out-of-the-box accuracy. They each display a wide color gamut in HDR, but the LG has much better tone mapping so colors look better. The main difference between them is that the LG supports 48 Gbps bandwidth of HDMI 2.1, while the Dell has 24 Gbps, so the LG doesn't require compression for high-frame-rate signals.