The LG 27GP850-B/27GP83B-B is a 27-inch lower mid-range gaming monitor with a 1440p IPS screen. The LG 27GP850-B and LG 27GP83B-B are variants of the same model, but the LG 27GP850-B has extra features like refresh rate overclocking, USB ports, and backlight strobing that the LG 27GP83B lacks. It has a good selection of gaming features, including a native 165Hz refresh rate, FreeSync and G-SYNC-compatible variable refresh rate (VRR) support, and black frame insertion (BFI). It also includes some extra features, like a virtual crosshair, an FPS counter, and a black stabilizer.
Our Verdict
The LG 27GP850-B is a decent PC gaming monitor. Gaming feels responsive and smooth thanks to its low input lag and 180Hz max refresh rate. Motion also looks sharp throughout its entire refresh rate range as it has a fast response time. It has VRR support for FreeSync and is G-SYNC compatible to reduce screen tearing too. However, it doesn't perform well in darker environments and has limited picture quality, as deep blacks appear gray and the screen looks cloudy.
- Great response time across VRR range.
- Low input lag.
- Supports both FreeSync and G-SYNC.
- Low contrast ratio.
- No local dimming.
The LG 27GP850-B is okay for console gaming. It can't take full advantage of the Xbox Series X|S and PS5 as it lacks HDMI 2.1 bandwidth and has a 1440p resolution, but it still works well with the consoles. That said, it offers good gaming performance with a fast response time and low input lag for a responsive feel. Unfortunately, it has limited picture quality, especially in HDR, as it has a low contrast ratio and lacks a local dimming feature to further improve the picture quality.
- Great response time across VRR range.
- Low input lag.
- Low contrast ratio.
- No local dimming.
- Lack of HDMI 2.1 bandwidth.
The LG 27GP850-B is a good choice for an office monitor. It delivers good text clarity and the 27-inch screen has great screen real estate. It overcomes glare in a moderately-lit room, with great peak brightness, but reflections from bright sources are distracting. It displays a wide range of colors in SDR, which is great if your work requires accurate colors, with excellent accuracy before calibration. While it has good overall ergonomics, it doesn't offer any swivel adjustment, making it difficult to adjust to your preferred position.
- Image remains consistent at a wide angle.
Bright enough to fight some glare.
Distracting reflections.
- Stand can't swivel.
The LG 27GP850-B is decent for media creation. The large screen makes it easy to see more of your work at once, and it has good text clarity. It's also ideal for sharing your screen with others thanks to its wide viewing angles, though the stand can't swivel. It has great gray uniformity, exceptional gradient handling, and displays a wide range of colors in SDR, ensuring content looks accurate. It's fine if you have some lights around, but reflections from bright sources are distracting. It's also worse for use in a dark room as deep blacks appear gray, and the screen looks cloudy.
- Image remains consistent at a wide angle.
Bright enough to fight some glare.
- Excellent accuracy before calibration.
Distracting reflections.
- Low contrast ratio.
- Stand can't swivel.
The LG 27GP850-B has good brightness. It gets bright enough to fight glare in a moderately-lit room, but it fails to make highlights pop in HDR.
Bright enough to fight some glare.
- Highlights don't pop in HDR.
The LG 27GP850-B has a great overall response time. It maintains its response time consistently fast across its entire refresh rate range. While fast-moving objects look sharp, it doesn't eliminate all motion blur and inverse ghosting.
- Great response time across VRR range.
- Still a bit of motion blur.
The LG 27GP850-B is terrible for HDR. It has a low contrast ratio and lacks a local dimming feature to improve the picture quality in HDR. It also has limited HDR color volume as it can't display bright and dark colors really well.
- Low contrast ratio.
- No local dimming.
The LG 27GP850-B has okay SDR picture quality. It's mainly limited by its low native contrast ratio, so blacks look gray in the dark, and it has disappointing black uniformity as there's clouding throughout.
- Excellent accuracy before calibration.
- Low contrast ratio.
The LG 27GP850-B has excellent color accuracy. It has excellent accuracy before calibration in its dedicated sRGB mode, but calibrating it still results in the most accurate image. That said, its great gray uniformity means that the image remains consistently accurate throughout the entire screen.
- Great gray uniformity.
- Excellent accuracy before calibration.
Performance Usages
Changelog
- Updated Nov 10, 2025: We've converted this review to Test Bench 2.1.1. We removed the Vertical Viewing Angle test.
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Updated Jul 14, 2025:
We updated text throughout to match the new and updated tests with Test Bench 2.1, including in the Verdict section.
- Updated Jul 10, 2025: We've converted this review to Test Bench 2.1. This includes new tests for Direct Reflections, Ambient Black Level Raise, and Total Reflected Light. You can see all the changes in the changelog.
- Updated Feb 21, 2025: We've converted this review to Test Bench 2.0.1. This includes a new test result for DisplayPort 2.1 Transmission Bandwidth.
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Differences Between Sizes And Variants
We tested the 27-inch LG 27GP850-B, which is also available as the LG 27GP83B-B at different retailers. The 27GP83B-B has fewer features, as it lacks overclock, USB ports, and a backlight strobing feature, but otherwise, it performs the same. You can see the differences between them below. There's also a 32-inch LG 32GP850-B/32GP83B-B available, but that's a different monitor.
| Model | Size | Resolution | Max Refresh Rate | BFI | USB |
|---|---|---|---|---|---|
| 27GP850-B | 27" | 2560x1440 | 180Hz | Yes | 2x USB-A 1x USB-B |
| 27GP83B-B | 27" | 2560x1440 | 165Hz | No | 1x USB-A (Service Only) |
Our unit was manufactured in April 2021; you can see the label here.
Popular Monitor Comparisons
The LG 27GP850-B/27GP83B-B is a decent PC gaming monitor with a few extra features. It has a fast response time across its VRR range and low input lag for a responsive feel, but like all IPS panels, it's not as well-suited for a dark room as it has limited picture quality. That said, this is what you have to expect for a budget-friendly monitor and it offers good value against other low-cost monitors. However, it doesn't have many productivity features, so if you care about that, check out the Gigabyte M27Q P instead.
For more options, check out our recommendations for the best 27-inch monitors, the best gaming monitors, and the best 1440p monitors.
The LG 27GP850-B/27GP83B-B and the AOC Q27G3XMN are both 27-inch 1440p gaming monitors. The AOC is a better option if you play a lot of immersive games, as it has highlights that are bright enough to pop, and it displays vivid colors. However, you may prefer the LG if you're bothered by smearing in fast-moving games, as it doesn't have dark trails behind fast-moving objects in dark scenes like the AOC.
The LG 27GP850-B/27GP83B-B and the ASUS ROG Strix XG27ACS are both budget-friendly 1440p gaming monitors with a 180Hz refresh rate. They perform very similarly, but the ASUS has a few extra perks, like better ergonomics and a USB-C port with DisplayPort Alt Mode. Although they both have backlight strobing features, the ASUS supports ELMB-SYNC for it to work at the same time as VRR.
The Dell S2721DGF and the LG 27GP850-B/27GP83B-B are very similar, each with strengths and weaknesses. The LG has an optional black frame insertion feature, which can help reduce the amount of persistence blur seen on-screen. The Dell has a more versatile stand, as it can swivel and switch to portrait orientation on either side, and it feels a bit better built than the LG.
The Acer Nitro XV272U KVbmiiprzx and the LG 27GP850-B/27GP83B-B have very similar gaming performances. The main differences between them are in the features. The Acer has significantly better ergonomics because it allows for swivel adjustments, more USB ports, and built-in speakers.
We buy and test more than 30 monitors each year, all of which we purchase ourselves, without cherry-picked units or samples. We put a lot into each unbiased, straight-to-the-point review, and there's a whole process from purchasing to publishing, involving multiple teams and people. We do more than just use the monitor for a week; we use specialized, custom tools to measure various aspects and deliver objective, data-driven results. We also consider multiple factors before making any recommendations, including the monitor's cost, its performance compared to the competition, and whether it's easy to find.
Test Results
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