LG UltraGear 27G640A-B 27” QHD IPS Gaming Monitor – 300Hz, 1ms GtG, DisplayHDR 400 & G-SYNC Compatible
Experience exceptional competitive speed and sharp QHD visuals with the LG UltraGear 27G640A-B, a 27-inch QHD IPS gaming monitor engineered for fast-paced gaming. Featuring a blazing-fast 300Hz refresh rate, 1ms GtG response time, NVIDIA G-SYNC compatibility, AMD FreeSync Premium, VESA DisplayHDR 400, and up to 95% DCI-P3 color coverage, it combines high-speed responsiveness with vibrant image quality.
With USB Type-C, dual HDMI 2.1, DisplayPort 1.4, advanced UltraGear gaming features, and a fully adjustable ergonomic stand, the 27G640A-B provides the performance and connectivity needed for modern gaming setups.
27-Inch QHD IPS Display
Enjoy crisp, detailed gaming visuals with a 2560 × 1440 QHD resolution on a spacious 27-inch IPS display.
QHD provides increased detail and screen space compared with Full HD, while IPS technology helps maintain vivid, consistent colors across wide viewing angles.
Blazing-Fast 300Hz Refresh Rate
Take on high-speed competitive games with an ultra-fast 300Hz refresh rate.
The high refresh rate delivers exceptionally fluid motion and rapid frame updates, making it particularly suited to competitive FPS, esports, racing, action, and other games where smooth motion and fast visual feedback are important.
1ms GtG Response Time
The fast 1ms GtG response time helps minimize ghosting and motion blur during rapid gameplay.
Combined with the 300Hz refresh rate, it helps maintain sharp, clear visuals when tracking opponents and reacting to fast-moving action.
VESA DisplayHDR 400
Experience compatible HDR content with enhanced brightness, contrast, and color through VESA DisplayHDR 400.
Bright highlights and greater visual depth add impact to games and entertainment while complementing the monitor's detailed QHD resolution.
Up to 95% DCI-P3 Color Coverage
With up to 95% DCI-P3 color gamut coverage, the LG UltraGear 27G640A-B produces rich, vibrant colors across games, movies, and other visual content.
Combined with its IPS panel and HDR capabilities, the wide color gamut delivers an engaging and colorful viewing experience.
NVIDIA G-SYNC Compatible
NVIDIA G-SYNC compatibility helps synchronize the monitor's refresh rate with compatible NVIDIA graphics hardware, reducing tearing and stuttering for smoother gameplay.
AMD FreeSync Premium
AMD FreeSync Premium provides adaptive synchronization with compatible AMD graphics hardware, helping maintain fluid and virtually tear-free visuals during high-frame-rate gaming.
Support for both technologies makes the monitor flexible across a wide variety of gaming PC configurations.
Dynamic Action Sync
Dynamic Action Sync helps reduce input lag for faster on-screen response, allowing your actions to be reflected quickly during competitive gameplay.
Black Stabilizer
Improve visibility in dark environments with Black Stabilizer, which enhances shadow details to help reveal objects and opponents hidden in darker areas of the game.
FPS Counter
Monitor performance while you play using the integrated FPS Counter, which provides real-time frame-rate information directly on screen.
Crosshair
The built-in Crosshair provides a center-screen aiming reference to enhance targeting visibility and precision in compatible games.
USB Type-C with 15W Power Delivery
The USB Type-C connection expands the monitor's versatility while providing up to 15W Power Delivery for compatible devices.
This makes it convenient for connecting supported equipment while providing power for lower-power devices.
Dual HDMI 2.1 & DisplayPort 1.4
The LG UltraGear 27G640A-B provides a strong selection of modern display connections, including:
These connectivity options provide flexibility for gaming PCs, compatible consoles, laptops, and other supported devices.
Fully Adjustable Gaming Stand
Customize your viewing position with an ergonomic stand offering:
Height Adjustment
Tilt
Swivel
Pivot
The extensive adjustment options help create a comfortable gaming or working position for extended sessions.
Slim, Narrow-Bezel Design
The monitor's slim profile and narrow bezels create a clean UltraGear aesthetic while keeping attention focused on the 27-inch QHD display.
The narrow-bezel construction also makes it suitable for multi-monitor battlestation setups.
Matte Screen Surface
A matte screen finish helps reduce distracting glare and reflections from surrounding light sources, supporting clearer viewing during extended gaming and everyday use.
Key Specifications
Brand: LG
Series: UltraGear
Model: 27G640A-B
Screen Size: 27 Inches
Panel Type: IPS
Resolution: QHD (2560 × 1440)
Aspect Ratio: 16:9
Refresh Rate: 300Hz
Response Time: 1ms GtG
HDR: VESA DisplayHDR 400
Color Gamut: Up to 95% DCI-P3
Adaptive Sync: NVIDIA G-SYNC Compatible & AMD FreeSync Premium
Gaming Features: Dynamic Action Sync, Black Stabilizer, FPS Counter & Crosshair
USB Type-C: Up to 15W Power Delivery
HDMI: 2 × HDMI 2.1
DisplayPort: DisplayPort 1.4
Screen Surface: Matte
Stand Adjustments: Height, Tilt, Swivel & Pivot
Design: Slim Profile with Narrow Bezels
Color: Black
QHD Clarity Meets 300Hz Competitive Speed
Combining a 27-inch QHD IPS panel, 300Hz refresh rate, 1ms GtG response time, VESA DisplayHDR 400, up to 95% DCI-P3, G-SYNC compatibility, FreeSync Premium, HDMI 2.1, DisplayPort 1.4, and USB-C connectivity, the LG UltraGear 27G640A-B delivers a high-performance platform for competitive gaming, esports, fast-paced action, and immersive QHD entertainment.
