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Is the LG 27GL850-B a good gaming monitor for PS5, Xbox Series X and other consoles?

The 27GL850-B Ultragear is a 27” gaming monitor from LG. So, is this screen any good at displaying console games on the PlayStation 5, Xbox Series X, Xbox Series S as well as other systems?

You can find out in this buyer’s guide.

Quick Summary

With the LG 27GL850-B, you can play PS5 games at 120 frames per second at 1080p as well as Xbox Series X and Xbox Series S games at 120 frames per second at 1080p/1440p.

The gaming monitor also supports 4K downscaling as you can play games with a sharper image at 1440p for the new consoles.

Although the monitor support Variable Refresh Rate, this feature will only work at up to 100 frames per second. Thus, you need to disable it in order to play games at 120 fps on the PS5, Xbox Series X and S.

While the 27GL850-B supports HDR10, it has a poor contrast ratio and low HDR brightness levels. As a result, HDR-enabled games won’t look too great on it.

If you are still interested, you can purchase the monitor on Amazon with the following link:

As you can see above, the LG 27GL850-B is a bit of a mixed bag when it comes to console gaming. If you are looking for a better console gaming monitor, we recommend checking out the 27GN950-B model from LG.

HDMI Ports

The 27GL850B Ultragear comes with two HDMI 2.0 ports. The new PS5, Xbox Series X and Xbox Series S consoles supports HDMI ports of up to 2.1.

Maximum Resolution

The maximum resolution for the LG 27GL850-B is 1440p, which is 2560 x 1440 in pixels.

Maximum Refresh Rate

The maximum refresh rate is 144 Hz, which means that the monitor can display games at up to 144 frames per second.

On consoles, however, the max refresh rate is 120 Hz, which is 120 frames per second.

Supported Resolutions and FPS for PS5, Xbox Series X and Xbox Series S

The 27GL850-B is capable of display games at 120 fps on the three new consoles. Due to the lack of support for 1440p, the PS5 is only limited to a 1080p resolution if you want to use the 120 Hz mode with this monitor. With the Xbox Series X and Xbox Series S, you can pick between the 1080p or 1440p resolutions when using the 120 Hz mode.

The 27GL850-B does not have any HDMI 2.1 ports. Not to mention that it is not a 4K monitor. As a result, you won’t be able to play PS5, Xbox Series X and Xbox Series S games at 4K and 120 frames per second.

This monitor does support downscaling from 4K to 1440p, however.

You can find a breakdown of the compatible resolutions and frame rates below:

PlayStation 5:

  • Up to 120 frames per second at 1080p
  • Up to 60 frames per second at 1440p (downscaled from 4K)

Xbox Series X and Xbox Series S:

  • Up to 120 frames per second at 1080p
  • Up to 120 frames per second at 1440p
  • Up to 60 frames per second at 1440p (downscaled from 4K)

To enable downscaling, you have to set your consoles to output at 4K. To enable 120 Hz, you have to disable adaptive sync on the 27GL850-B and set your console to output at a lower resolution (1080p for PS5 and 1080p/1440p for the Xbox Series consoles).

Adaptive Sync Support

The LG 27GL850-B Ultragear is compatible with AMD’s Freesync, NVIDIA’s GSYNC and Variable Refresh Rate.

With that said, Variable Refresh Rate, or VRR, is limited to up to 100 Hz. So, if you want to play console games at up to 120 fps, you need to disable this feature, which is designed to help smooth out stuttering and eliminate screen tearing.

VRR is currently supported by the Xbox Series X and S. The same feature should be added to the PS5 in a future firmware update for the console.

27GL850-B’s Input Lag

As expected, the 27GL850-B has excellent input lag reduction. According to tests done by RTINGS, the LG monitor falls below our recommend upper limit of 30 ms latency in order to get a responsive gaming experience.

You can take a look at the input lag test results for the different visual settings below (via RTINGS):

  • 1440p: 4.3 ms
  • 1440p at 60 Hz: 14.0 ms
  • Variable Refresh Rate: 4.7 ms
  • Variable Refresh Rate at 60Hz: 13.2 ms
  • 10-Bit HDR: 4.3 ms

Native Contrast

The 27GL850-B has a pretty underwhelming native contrast. According to RTINGS, the contrast ratio is just 735:1. If you decide to play console games in a dark room, then you will get a poor image quality.

27GL850-B’s HDR Features

When it comes to HDR features, the LG 27GL850-B supports HDR10, which is the current standard for games on the PS4, PS4 Pro, PS5, Xbox One S, Xbox One X and Xbox Series X. The monitor also features a wide color gamut.

The 27GL850-B is not compatible with HDR10+ or Dolby Vision, the latter of which will be added to Xbox Series X and Xbox Series S in a future firmware update.

27GL850-B’s HDR Brightness Levels

When compared to what you get with a good television set, the HDR brightness levels are pretty poor for the 27GL850-B.

According to RTINGS, this LG monitor can only reach 341 cd/m2 in real scene peak brightness. To really begin to highlight the strengths of HDR, you need at least 500 cd/m2.

You can take a look at the HDR brightness test results below (via RTINGS):

  • HDR Real Scene Peak Brightness: 341 cd/m²
  • HDR Peak 2% Window: 361 cd/m²
  • HDR Peak 10% Window: 362 cd/m²
  • HDR Peak 25% Window: 362 cd/m²
  • HDR Peak 50% Window: 362 cd/m²
  • HDR Peak 100% Window: 391 cd/m²
  • HDR Sustained 2% Window: 322 cd/m²
  • HDR Sustained 10% Window: 313 cd/m²
  • HDR Sustained 25% Window: 306 cd/m²
  • HDR Sustained 50% Window: 316 cd/m²
  • HDR Sustained 100% Window: 361 cd/m²
  • HDR ABL: 0.010

Is the 27GL850-B good for PS5, Xbox Series S and Xbox Series X?

The 27GL850-B is a good monitor for the PS5, Xbox Series X and Xbox Series S if your main objective is to play games at 120 frames per second with low input lag.

It is not a good screen if you want pristine image quality, however. Although it features 4K downscaling to 1440p, the screen has a poor contrast ratio in addition to low HDR brightness levels.

While VRR is supported for the new consoles, it is limited to up to 100 frames per second with this monitor.

Is the 27GL850-B good for Switch, PS4, and Xbox One?

The low input lag of the 27GL850-B makes it a pretty good monitor for older HDMI consoles like the PS3, PS4, Nintendo Wii U, Nintendo Switch, Xbox 360 and Xbox One.

The downscaling capabilities of this screen is also great for the PS4 Pro and Xbox One X.

With that said, the poor contrast and low HDR brightness makes this screen less than ideal for HDR-enabled games on the PS4, PS4 Pro, Xbox One S and Xbox One X.

Pricing

You can check out the current price tag for this computer monitor on Amazon with the following link: