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LG 27" LED - UltraGear 27G640A-B
2.5K PC monitor - 2560 x 1440 pixels - 1 ms (gray to gray) - 16:9 - IPS panel - 300 Hz - DisplayHDR 400 - FreeSync Premium/G-SYNC Compatible - HDMI/DisplayPort/USB-C - Pivot - Black
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High performance and extreme fluidity
Gain in comfort and performance with the LG UltraGear 27G640A-B monitor! With its 27" high-resolution IPS panel, step into a high-end gaming world! On the gaming side, this screen performs perfectly with a 1 ms response time, a maximum refresh rate of 300 Hz and FreeSync Premium + G-SYNC Compatible technology. In addition, this model will accompany you in your quest for victory with lasting comfort thanks to its ergonomic stand.
Large 2.5K IPS screen
The LG UltraGear 27G640A-B gaming monitor, with its large 27-inch size, IPS panel and high 2.5K resolution, provides comfortable viewing, with a bright, colorful and uniform image, whatever your position in front of the screen. Its high pixel density contributes to sharper, more precise images, delivering a more immersive experience.
Performance and fluidity
With a 1 ms response time (gray to gray), a maximum refresh rate of 300 Hz and support for FreeSync Premium + G-SYNC Compatible technology, this LG screen promises a particularly smooth, tear-free display. With reduced ghosting and smooth visuals, every detail stays sharp, even in the heat of the action!
In addition, this LG monitor supports a wide color gamut (sRGB 95%) and, with DisplayHDR 400 compatibility, reproduces colors with high fidelity so gamers can see the spectacular colors intended by game developers, whatever the battlefield.
Innovative features for Gamers
Gain in comfort with innovative features designed to improve display quality and gaming performance. Dynamic Action Sync reduces input lag to improve your responsiveness. Black Stabilizer improves contrast in dark areas so you can better see what is hidden there. Crosshair places the aiming point at the center of the screen, to improve accuracy. FPS Counter lets you see the FPS rate in real time.
Select your criteria
General information |
Product name |
LG 27" LED - UltraGear 27G640A-B |
Brand |
LG | |
Model |
27G640A-B.AEUQ | |
Display |
Screen size |
27 inches |
Screen format |
16:9 | |
Panel type |
IPS display | |
QD-OLED |
No | |
Max resolution |
2560 x 1440 pixels | |
High definition |
2.5K | |
Dot Pitch |
0.2328 mm | |
Brightness |
400 cd/m² | |
Contrast |
1300 /1 | |
Response time |
1 ms | |
Angle of vision (horizontal) |
178 Degree(s) | |
Angle of vision (vertical) |
178 Degree(s) | |
Matte/anti-glare panel |
Yes | |
HDR (High Dynamique Range) |
Yes | |
HDR standards |
HDR10 | |
| VESA DisplayHDR 400 | ||
NVIDIA G-SYNC |
Yes | |
G-SYNC |
G-SYNC compatible | |
NVIDIA Reflex |
No | |
Adaptive-Sync |
Yes | |
AMD FreeSync |
Yes | |
FreeSync |
AMD FreeSync Premium | |
Flicker-Free |
Yes | |
Anti blue light |
Yes | |
Screen |
Screen type |
LED |
Range |
LG UltraGear | |
Widescreen |
Yes | |
Curved screen |
No | |
Borderless |
Yes | |
Touch screen |
No | |
Max vertical frequency |
300 Hz | |
Type of activities |
Gamer | |
Ergonomics |
Portable |
No |
Pivot |
Yes | |
Height adjustable stand |
Yes | |
Removable stand |
Yes | |
VESA mount |
100 x 100mm | |
Back tilt angle (top) |
21 Degree(s) | |
Forward tilt angle (bottom) |
5 Degree(s) | |
Articulating arm |
No | |
Connectivity |
Video inputs |
1 X USB Type C Female |
| 1 X DisplayPort Female | ||
| 1 X HDMI Female | ||
HDMI standard |
HDMI 2.1 | |
DisplayPort standard |
DisplayPort 1.4 | |
Audio outputs |
1 X Headphone (3.5mm Jack Female) | |
Dock USB-C |
No | |
Multimedia |
Built-in speakers |
Yes |
Sound power |
2 X 5 W | |
Webcam |
No | |
TV tuner |
No | |
Physical characteristics |
Color |
Black |
Release year |
2025 | |
Width |
613.68 mm | |
Maximum height |
539.1 mm | |
Height |
389.1 mm | |
Depth |
239 mm | |
Height (without stand) |
365.77 mm | |
Depth (without stand) |
57.44 mm | |
Weight |
5.47 kg | |
Weight (Without stand) |
3.4 kg | |
Multi-monitor bundle |
No | |
Power supply |
Energy class |
F |
Consumption |
26 kWh/1000h | |
Standby consumption |
0.5 W | |
Internal power supply |
No | |
Specificities |
PS5 optimized |
No |
Xbox Series optimized |
No | |
Warranties |
Commercial warranty |
Seller 5 years
|
Legal warranty |
See terms & conditions
|
|
Safety Information |
Responsible person |
LG Electronics Deutschland GmbH |
Postal address |
Alfred-Herrhausen-Allee 3-5, 65760 Eschborn, Germany | |
Electronic Address |
gpsr@lge.com |
See all LG products
Product referenced on 2 Jul 2026
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