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  • 27" QHD (2560 x 1440) Nano IPS Display
  • IPS 1ms Response Time and 144Hz Refresh Rate
  • NVIDIA G-SYNC Compatible
  • DCI-P3 98% with HDR10
  • 3-Side Virtually Borderless Display
  • Tilt/Height/Pivot Adjustable Stand
27" UltraGear™ QHD Nano IPS 1ms 144Hz G-SYNC Compatible Gaming Monitor
#1 Gaming-Designed Monitor Brand in U.S.*1

#1 Gaming-Designed Monitor Brand in U.S.*

  • Color

    Nano IPS / HDR10

  • Speed

    IPS 1ms(GtG) / NVIDIA® G-SYNC® Compatible / 144Hz

  • Display

    27" QHD 2560x1440 / 3-side Virtually Borderless

*The NPD Group, Inc., U.S. Retail Tracking Service, Monitors, Gaming Designed, Based on dollars, May’19-Apr’20 combined.
Nano IPS 1ms

A Total Game Changer with Nano IPS

A faster, more lifelike gaming experience. LG UltraGear™ Gaming Monitors are created from the ground up to give gamers the edge, including verified NVIDIA® G-SYNC®* compatibility. The Nano IPS display achieves 1ms GTG TN-level speeds and ultra-fast refresh rates, while mesmerizing with a rich and vivid picture.
*Image simulated.
*Comparison of speed with IPS 5ms (Left image) and IPS 1ms(GtG).
*Image simulated.
*Comparison OFF Vs NVIDIA® G-SYNC® Compatible.

Gain an Edge with NVIDIA® G-SYNC® Compatibility*

Officially verified NVIDIA G-SYNC compatibility. That translates to faster, smoother gaming that's been tested to reduce screen tearing, while minimizing stutter and input lag. Never miss a frame of the action as you clinch your victories with lag-free refresh rates.
Adaptive-Sync (FreeSync™)

Clearer, Smoother and Faster

With Adaptive-Sync (FreeSync™) technology, gamers can experience seamless, fluid movement in hi-resolution and fast-paced games. It virtually eliminates screen tearing and stuttering.
*Screen images simulated. Dramatization for illustrative purposes only.
**Comparison of Mode 'OFF' (left image) and AMD FreeSync™.
***AMD FreeSync™ is automatically turned on. Console games will play at 60Hz when AMD FreeSync is turned on. Please turn off AMD FreeSync to support console game's refresh rate. 
*Screen images simulated. Dramatization for illustrative purposes only.
**Comparison of 60Hz Refresh Rate (left image) and 144Hz Refresh Rate.
***144Hz refresh rate for PC games only. Monitor will support console game's refresh rate when AMD FreeSync is turned off, but only 60Hz refresh rate only when AMD FreeSync is turned on.


    • Size
    • 27"
    • Display Type
    • IPS 1ms
    • Response Time
    • 1ms (GtG at Faster)
    • Refresh Rate
    • 144Hz
    • Display Resolution
    • QHD


    • HDMI
    • Yes x 2
    • DisplayPort
    • Yes x 1


    • NVIDIA G-Sync™
    • Yes (Compatible)
    • Nano IPS™ Technology
    • Yes
    • HDR Effect
    • Yes
    • Wide Color Gamut
    • Yes
    • Black Stabilizer®
    • Yes
    • Dynamic Action Sync®
    • Yes
    • Crosshair®
    • Yes
    • Flicker Safe
    • Yes
    • Reader Mode
    • Yes
    • Color Calibrated
    • Yes
    • AMD FreeSync™
    • Yes
    • FreeSync (Low Frame Compensation)
    • Yes
    • 1ms Motion Blur Reduction
    • Yes
    • Smart Energy Saving
    • Yes
    • HDR (High Dynamic Range)
    • Yes (HDR10)
    • HDR10
    • Yes
    • Others (Feature)
    • G-SYNC Compatible


    • Resolution
    • 2560 x 1440
    • Aspect Ratio
    • 16:9
    • Pixel Pitch
    • 0.2331 x 0.2331 mm
    • Brightness (Min.)
    • 280cd/m²
    • Brightness (Typ.)
    • 350cd/m²
    • Color Gamut (Min.)
    • DCI-P3 90% (CIE1976)
    • Color Gamut (Typ.)
    • DCI-P3 98% (CIE1976)
    • Color Depth (Number of Colors)
    • 1.07B
    • Contrast Ratio (Min.)
    • 700:1
    • Contrast Ratio (Typ.)
    • 1000:1
    • Viewing Angle (CR≥10)
    • 178º (R/L), 178º (U/D)


    • Speaker
    • No built-in speaker


    • HDMI
    • Yes


    • OnScreen Control (LG Screen Manager)
    • Yes


    • HDMI
    • Yes (2ea)
    • HDMI (Max. Resolution at Hz)
    • 2560 x 1440 8bit at 144Hz
    • DisplayPort
    • Yes (1ea)
    • DP Version
    • 1.4
    • DP (Max. Resolution at Hz)
    • 2560 x 1440 10bit at 144Hz
    • Headphone out
    • Yes


    • Type
    • External Power (Adapter)
    • AC Input
    • 100-240 Vac, 50/60 Hz
    • Power Consumption (Typ.)
    • 51W
    • Power Consumption (Max.)
    • 55W
    • Power Consumption (Sleep Mode)
    • Less than 0.5W
    • Power Consumption (DC Off)
    • Less than 0.3W


    • Wall Mountable
    • 100 x 100 mm
    • Display Position Adjustments
    • Tilt/Height/Pivot


    • 2020 Model
    • Yes


    • Dimension with Stand (W x H x D)
    • 24.2" x 22.7" x 11.5" (Up), 24.2" x 18.3” x 11.5" (Down)
    • Dimension without Stand (W x H x D)
    • 24.2" x 14.4" x 2.2"
    • Dimension in Shiping (W x H x D)
    • 28.9" x 8.6" x 20.6"
    • Weight with Stand
    • 14.1 lbs
    • Weight without Stand
    • 9.3 lbs
    • Weight in Shipping
    • 20.9 lbs


    • HDMI
    • Yes
    • Display Port
    • Yes


    • Limited Warranty
    • 1 Year Parts and Labor
    • UPC
    • 719192641624

What people are saying

Rated 4 out of 5 by from Very good colors brightness and picture Product has a very good refresh rate, great color reproduction and working well for gaming, however my model came with a defect that made black pixels sometimes be white, also a down side is the fact that it doesn’t true my support hdr, and windows will refuse to display windows store games in hdr because of it
Date published: 2021-09-01
Rated 5 out of 5 by from Great value This monitor is a great value. My games look great and crisp in 2K at 140+ Hz with V-Sync and a Nvidia Geforce RTX 2070 SUPER. I noticed no dead pixels. My only issue is that I'm not sure that I can notice when HDR is active, but regardless, it slows down frame rates.
Date published: 2021-06-03
Rated 5 out of 5 by from Great Monitor I bought this 2 weeks ago when I got the new Xbox series x and the monitor performs beautifully. Games and movies haven’t looked any better
Date published: 2021-05-12
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Ask your questions. Share your answers.
Please review the detailed product information and help guides in the
Product Support section for this product prior to posting a question.

Hi, can this monitor have its resolution changed down to 1080p? Until I get a better GPU to run 1440p more effectively. Or will it automatically adjust? I have an asus 24inch 1080p @60mhz monitor currently, screen split/ tear is awful.

Asked by: Zeap
The LG 27'' UltraGear™ QHD Nano IPS 1ms 144Hz G-SYNC Compatible Gaming Monitor, Model # 27GN850-B has a native resolution of 2560 x 1440 and a native refresh rate of 144Hz. It features 2 x HDMI inputs and a DisplayPort and it supports a maximum resolution of 2560 x 1440 @ 100Hz over HDMI and 2560 x 1440 @ 120/144Hz over HDMI when FreeSync Premium is set to OFF (75Hz when FreeSync Premium is set to ON) and it supports 2560 x 1440 @ 100/120/144Hz over DisplayPort.It also supports 1920 x 1080 @ 60/75Hz over HDMI and DisplayPort...^IFV
Answered by: Ivanf
Date published: 2021-03-03

Hi I was just curious I have this monitor and at Best Buy it says G-sync and freesync but the monitor itself only has a sticker for Nvidia G-sync so my question is with my AMD graphics card can I set up freesync 

Asked by: Mcdarren
The LG 27'' UltraGear™ QHD Nano IPS 1ms 144Hz G-SYNC Compatible Gaming Monitor is an Adaptive-Sync (FreeSync™) monitor that is an NVIDIA-tested and officially verified G-SYNC® compatible monitor, meaning it will work with your FreeSync cards and some Nvidia GeForce GTX and RTX series cards...^IFV
Answered by: Ivanf
Date published: 2020-11-04

Correction; are there any improvements on the display compared to the 27gl850-b?

Asked by: jamesaa941
They improved the contrast ratio up from 700 to 1000
Answered by: Curt1996
Date published: 2021-12-22

What's the version of the HDMI and the display port? Can I get 1440p & 144Hz on all ports?

Asked by: Deba GT
Answered by: KimaaFN
Date published: 2020-09-12

What is the difference between this model and the LG27GL850?

Asked by: Tam122
The L is 2019 the N is 2020. This is also $50 dollars cheaper because it does not have the USB hub that the 2019 model had.
Answered by: Casperld
Date published: 2020-09-09

Hello LG, Will is there be a release for the EU/Netherlands ?

Asked by: JoeyP010

What do I do if the monitor has no picture? When I plug the power cord, the LED light is red for a few seconds and turns off, and when I press the button nothing happens.

Asked by: TornadoJack

Are there any improvements on the display compared to the 27gn850-b?

Asked by: jamesaa941
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