27” UltraGear™ QHD Nano IPS 180Hz (O/C 200Hz) gaming monitor | 1ms (GtG), DisplayHDR™ 400

27GS85Q-B

side view of the monitor moving downwards for height adjustment

front view with the display pivoting 90 degrees in a portrait view

Key Features

27-inch QHD (2560x1440) Nano IPS display
180Hz (O/C 200Hz) refresh rate
Nano IPS 1ms (GtG) response time
DisplayHDR™ 400 / DCI-P3 98% (Typ.)
3-side virtually borderless design
VESA certified AdaptiveSync / NVIDIA^® G-SYNC^® Compatible / AMD FreeSync™

Born to game

UltraGear™ gaming monitor with the image of a man riding a horse.

Dive into the rush
with vivid colours

Rev up your gaming world with 200Hz O/C speed. Ignite your gameplay with a QHD resolution, Nano IPS wide viewing angles, and a jaw-dropping 200Hz O/C refresh rate.

Display

27” QHD (2560x1440) Nano IPS

DisplayHDR™ 400/ DCI-P3 98% (Typ.)

Speed

200Hz refresh rate (O/C)

Nano IPS 1ms (GtG) response time

Technology

VESA certified AdaptiveSync

NVIDIA^® G-SYNC^® Compatible

AMD FreeSync™

*The images simulated to enhance feature understanding. It may differ from actual use.

*This monitor supports a 180Hz refresh rate; when overclocked, it can be used at a 200Hz refresh rate. A graphic card that supports DisplayPort 1.4 and the DisplayPort 1.4 cable is required to work "200Hz" properly.

200Hz refresh rate (O/C)

Upgraded speed.
New standard.

We have raised UltraGear's speed standard to 200Hz. You can enjoy ultra-clear and smooth images with a 200Hz (O/C) refresh rate, which loads images 200 times in a second.

It is a comparison image of a fast-paced game with a low refresh rate and a clear image with a 200Hz (O/C) high refresh rate.

*The images simulated to enhance feature understanding. It may differ from actual use.

An image of a robot on a monitor with three-dimensional, dynamic colors.

Nano IPS display

Brilliant play
from wide angle

Nano IPS technology expresses game scenes vividly and with great color accuracy and, a widened color spectrum of DCI-P3 98%, allows you to enjoy an extraordinary gaming experience vibrantly.

*The images simulated to enhance feature understanding. It may differ from actual use.

*The viewing angle of this IPS display is up to 178 degrees.

Nano IPS with DCI-P3 98% (Typ.)

Outstanding colour performance

This monitor supports 98% coverage of the DCI-P3 spectrum by applying nano-sized particles in Nano IPS, so it helps to offer vibrant colour reproduction.

*The images simulated to enhance feature understanding. It may differ from actual use.

*DCI-P3 : Typical 98%, Minimum 90%.

Nano IPS 1ms (GtG)

Designed for Incredible Speed

1ms Nano IPS display minimizes afterimage and delivers fast response time, letting you enjoy a whole new gaming performance.

*The images simulated to enhance feature understanding. It may differ from actual use.

*Select 'Faster Mode' to perform '1ms Response Time'. (Game Adjust → Response Time → Faster Mode).

DisplayHDR™ 400

Feel actual combat with true color

This monitor reproduces high-fidelity colors with VESA DisplayHDR™ 400, allowing gamers to see the dramatic colors that the game developers intended regardless of the battlefield.

*The images simulated to enhance feature understanding. It may differ from actual use.

Fluid gaming experience

Comparison of fluid gaming image - The left image is tearing, and the Right image is tear-free.

VESA certified AdaptiveSync

Featuring VESA AdaptiveSync Display certification, geared towards gaming with notably higher refresh rates and low latency. Enjoy smoother, tear-free gaming visuals and jitter-free video playback.

NVIDIA® G-SYNC® Compatible

This monitor is an NVIDIA-tested and officially validated G-SYNC^® Compatible monitor, that can give you a good gaming experience with significantly reduced tearing or stuttering.

AMD FreeSync™

With FreeSync™ technology, gamers can experience seamless, fluid movement in high-resolution and fast-paced games. It significantly reduces screen tearing and stuttering.

*The images simulated to enhance feature understanding. It may differ from actual use.

*The performance of the feature is compared to the models not applying the sync technology.

*Errors or delays may occur depending on the network connection.

Gamer-centric design

Enhance your gaming experience with a 3-side virtually borderless design for an immersive viewing. The adjustable base, which supports tilt, height, and pivot, helps you play games more comfortably.

Borderless design

3-side virtually borderless

Tilt

-5°~+15°

Height adjustment

110mm

Pivot

Clockwise

Two monitor images showing the front and back of the monitor.

HDMI
DisplayPort

*The images simulated to enhance feature understanding. It may differ from actual use.

Gaming GUI

Award winning gaming GUI

Gamers can use On-Screen Display and OnScreen Control to easily customize the setting from adjusting basic monitor options to registering ‘User Defined Key’ that user can set the shortcut.

*To download the latest OnScreen Control software, visit LG.COM.
*The images simulated to enhance feature understanding. It may differ from actual use.

Dynamic Action Sync

Reducing input lag with Dynamic Action Sync, gamers can catch critical moments in real-time and respond quickly.

Black Stabilizer

Black Stabilizer helps gamers to detect snipers lurking in the darkest corners and swiftly navigate flash explosions.

Crosshair

The target point is fixed in the center to enhance shooting accuracy.

FPS Counter

The FPS Counter will let you see how well everything is loading. Whether you're editing, playing games, or watching a movie, every frame matters, and with the FPS Counter, you'll have real-time data.

*The images simulated to enhance feature understanding. It may differ from actual use.

*The Crosshair feature is unavailable while the FPS Counter is activated.

*FPS Counter may display the value that exceeds the monitor’s maximum refresh rate.

*FPS (Frame Per Second) Counter: Measurement of frames per second.

Key Spec

Display - Size [Inch]
27
Display - Resolution
2560 x 1440
Display - Panel Type
IPS
Display - Aspect Ratio
16:9
Display - Color Gamut (Typ.)
DCI-P3 98% (CIE1976)
Display - Brightness (Typ.) [cd/m²]
400 cd/m²
Display - Refresh Rate (Max.) [Hz]
200(OC)
Display - Response Time
1ms (GtG at Faster)
Mechanical - Display Position Adjustments
Tilt/Height/Pivot

All Spec

INFO

Product name
UltraGear

DISPLAY

Aspect Ratio
16:9
Brightness (Typ.) [cd/m²]
400 cd/m²
Color Gamut (Typ.)
DCI-P3 98% (CIE1976)
Contrast Ratio (Typ.)
1000:1
Curvature
NO
Panel Type
IPS
Refresh Rate (Max.) [Hz]
200(OC)
Resolution
2560 x 1440
Response Time
1ms (GtG at Faster)
Size [cm]
68.4
Size [Inch]
27
Viewing Angle (CR≥10)
178º(R/L), 178º(U/D)

FEATURES

Reader Mode
Yes
AMD FreeSync™
FreeSync
Auto Input Switch
Yes
Black Stabilizer
Yes
Color Calibrated in Factory
Yes
Color Weakness
Yes
Crosshair
Yes
Dynamic Action Sync
Yes
Flicker Safe
Yes
FPS Counter
Yes
HDR 10
Yes
HDR Effect
Yes
Nano IPS™ Technology
Yes
NVIDIA G-Sync™
G-SYNC Compatible
OverClocking
Yes
Smart Energy Saving
Yes
User Defined Key
Yes
VESA DisplayHDR™
DisplayHDR™ 400

SW APPLICATION

OnScreen Control (LG Screen Manager)
Yes

CONNECTIVITY

DisplayPort
Yes(1ea)
DP Version
1.4
HDMI
Yes(2ea)
Headphone out
3-pole (Sound Only)
USB Downstream Port
Yes(2ea/ver3.0)
USB Upstream Port
Yes(1ea/ver3.0)

POWER

AC Input
100~240V (50/60Hz)
DC Output
65W (19V / 3.42A)
Type
External Power(Adapter)

MECHANICAL

Display Position Adjustments
Tilt/Height/Pivot
Borderless Design
3-Side Virtually Borderless Design
OneClick Stand
Yes
Wall Mountable [mm]
100 x 100 mm

DIMENSIONS/WEIGHTS

Dimension in Shiping (W x H x D) [mm]
691x184x498
Dimension without Stand (W x H x D) [mm]
613.5x371.6x51.3
Dimension with Stand (W x H x D) [mm]
613.5x577.7x253.7(UP) / 613.5x467.7x253.7(DOWN)
Weight in Shipping [kg]
8.6kg
Weight without Stand [kg]
4.30Kg
Weight with Stand [kg]
6.20Kg

ACCESSORY

HDMI
Yes
Adapter
Yes
Calibration Report (Paper)
Yes
Display Port
Yes
HDMI (Color/Length)
Black / 1.8m
Others (Accessory)
Cable holder / Mouse holder
Power Cord
Depend on Country
USB A to B
Yes

How to choose a gaming monitor?

Start with your priorities. Want crisp visuals? Go for 4K resolution. Need ultra-smooth motion? Prioritize a high refresh rate (144Hz or more) and low response time. If you're after deep contrast and color accuracy, consider OLED or Nano IPS, Nano IPS black panels. Don’t forget adaptive sync tech like NVIDIA G-SYNC or AMD FreeSync™ Premium to eliminate screen tearing. LG’s UltraGear™ series offers a range of gaming monitors tailored to your play style—from casual console gaming to high-intensity PC competition.

What is the refresh rate of a gaming monitor?

Refresh rate, calculated in Hertz (Hz), refers to how many displays are updated within one second. For example, a 120Hz indicates that the display refreshes 120 times per second. Gaming monitors with high refresh rates offer smoother visuals with less screen tearing.

How many hertz is good for gaming?

For most gamers, 144Hz is the sweet spot for fluid, responsive gameplay. Competitive players may want even faster refresh rates like 240Hz for that extra edge in fast-paced shooters or esports titles. LG’s lineup of UltraGear™ Gaming Monitors includes models that go from 144Hz to 240Hz and beyond (when used in dual mode, LG's models support 165Hz and 330Hz OR 240Hz and 480Hz)*, all designed to keep up with the action while minimizing lag and screen tearing.

It depends on what—and how—you play. Many gamers go with 144Hz for fluid, responsive gameplay. Competitive players may want faster refresh rates like 240Hz for that extra edge in fast-paced shooters or esports titles. LG’s lineup of UltraGear™ Gaming Monitors includes models that go from 144Hz to 240Hz and 480Hz, all designed to keep up with the action while minimizing lag and screen tearing.

*Actual refresh rates may vary depending on computer graphics specifications and configurations.

What are the differences between OLED, IPS, and VA panels?

OLED panels emit their own light at the pixel level, delivering near-perfect blacks, exceptional contrast, and vivid colors. They also offer ultra-fast response times, making them ideal for high-end gaming monitors, premium TVs, and professional video editing.

IPS panels are known for their accurate color reproduction and wide viewing angles, maintaining clear images from various positions. This makes them well-suited for office work, design, and gaming. Their excellent color accuracy is especially appealing to gamers who want to experience visuals exactly as the developers intended.

VA panels boast the highest contrast ratio among LCD types, providing an immersive experience for watching movies and videos. While not as fast as TN panels, they offer nearly comparable performance.

Should I get a curved monitor?

If you want a more immersive gaming experience, curved gaming monitors are a great choice. The curvature helps keep your eyes focused on the center of the screen naturally, which is great for long gaming sessions.

LG's UltraGear GX9 supports 800R curvature and a 21:9 ultrawide aspect ratio, delivering immersive visuals and an ideal viewing distance. At an 800mm viewing distance, its 800R curvature creates a viewing angle of 90 degrees across both the center and the edge—pulling you deeper into the game.

Is 1440p or 4K better for gaming?

Both have their strengths. For many gamers, 1440p (QHD) hits a sweet spot between resolution and performance, especially for competitive gaming where frame rate matters most. It’s easier to push higher FPS without overloading your GPU. 4K, on the other hand, is all about detail and immersion—perfect for single-player adventures or next-gen console play. LG’s UltraGear™ gaming monitors offer both QHD and 4K options, so whether you prioritize speed or stunning visuals, there’s a perfect fit for your setup.

Can I connect my monitor to my PC with a USB-C?

Connecting your gaming monitor via USB-C is simple—just plug one end of the cable into your device’s USB-C port, and you’re good to go. You can charge your laptop too if your PC is connected to your monitor with a USB-C port.

*Supported models may vary.

What is DisplayPort 2.1?

DisplayPort 2.1, the latest version of the DisplayPort standard, delivers ultra-fast data speeds for flawless high refresh rate gameplay. It is developed by VESA (Video Electronics Standards Association) to provide high-performance display connectivity for computers and monitors.

Many of LG’s latest models support DisplayPort 2.1*, which doubles the bandwidth of DP 1.4. That means you get higher resolutions, smoother frame rates, and lower latency—perfect for fast-paced gaming.

*Note: We have received numerous reports from users of NVIDIA 50-series graphics cards experiencing screens turning off when using DisplayPort 2.1 with 10-bit or 12-bit settings. If you are experiencing the same, as a temporary workaround, you can switch the DisplayPort input to 1.4 in your monitor's OSD menu or adjust the color setting to 8-bit in the NVIDIA Control Panel. This issue has been reported to NVIDIA for a more permanent solution.

What is HDMI 2.1?

With HDMI 2.1 supported, you’ll enjoy features like Variable Refresh Rate (VRR), Auto Low Latency Mode (ALLM), and support for 4K at up to 120Hz. Whether you’re gaming on a console or PC, these upgrades give you the flexibility and performance to match any setup.