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Black 27 inch flat IPS gaming monitor on height adjustable stand with thin bezels

LG Electronics

LG Electronics 27G640A-B 27" 300Hz gaming monitor

SKU CH-NTEX-VX72T MPN 27G640A-B

A 27-inch QHD IPS gaming monitor with a 300Hz refresh rate, 1ms response time, and 95% DCI-P3 colour coverage for competitive play

  • Cabinet ColorBlack
  • Screen Size27"
  • WidescreenYes
  • PanelIPS
  • Adaptive Sync TechnologyFreeSync Premium & G-Sync Compatible
  • Resolution2560 x 1440 (2K)

Option 300Hz

  • Ultra-smooth competitive play driven by a 300Hz refresh rate and 1ms response time
  • Sharp lifelike detail from a 27-inch 2560 x 1440 IPS panel with 178° viewing angles
  • Cinematic colour depth via 95% DCI-P3 coverage and VESA DisplayHDR 400 certification
  • Tear-free gaming enabled by AMD FreeSync Premium and NVIDIA G-SYNC compatibility
  • Ergonomic comfort with height, tilt, swivel and pivot adjustments on a frameless design

27-inch QHD 300Hz Gaming Monitor

The LG UltraGear 27G640A-B is a 27-inch IPS gaming monitor with a 2560 x 1440 resolution and a 300Hz refresh rate. It delivers a 1ms GtG response time and covers 95% of the DCI-P3 colour gamut with VESA DisplayHDR 400 certification. The flat panel offers 400 cd/m² brightness and a 1300:1 contrast ratio for vivid visuals.

Competitive Players Seeking Speed

This monitor suits esports enthusiasts and competitive gamers who need ultra-high refresh rates and low input lag for fast-paced titles. The wide 178° viewing angles and factory colour calibration benefit content creators working in sRGB or DCI-P3 workflows. Users prioritising deep blacks for dark-room media consumption may prefer a VA or OLED panel instead.

Straightforward Setup with Full Ergonomic Adjustment

The included stand provides height, tilt, swivel, and pivot adjustments for quick ergonomic alignment without tools. Connectivity includes two HDMI 2.1 ports, one DisplayPort 1.4, and a USB-C port with 15W power delivery plus two USB 3.0 downstream ports. Ensure your graphics card supports DSC over DisplayPort 1.4 to reach the full 300Hz at QHD resolution.

Highlights

  • Ultra-smooth competitive play driven by a 300Hz refresh rate and 1ms response time
  • Sharp lifelike detail from a 27-inch 2560 x 1440 IPS panel with 178° viewing angles
  • Cinematic colour depth via 95% DCI-P3 coverage and VESA DisplayHDR 400 certification
  • Tear-free gaming enabled by AMD FreeSync Premium and NVIDIA G-SYNC compatibility
  • Ergonomic comfort with height, tilt, swivel and pivot adjustments on a frameless design

Specifications

BrandLG
SeriesUltraGear
Model27G640A-B
Part Number27G640A-B
Cabinet ColorBlack
Screen Size27"
WidescreenYes
PanelIPS
Adaptive Sync TechnologyFreeSync Premium & G-Sync Compatible
Resolution2560 x 1440 (2K)
Viewing Angle178° (H) / 178° (V)
Aspect Ratio16:9
Brightness400 cd/m2
Contrast Ratio1,300:1
Response Time1 ms
Color GamutDCI P3 95% (CIE1976)
Display Colors1.07 Billion
Monitor Pixel Density0.2328mm
Refresh Rate300Hz
HDR StandardHDR10
VESA Certified DisplayHDRDisplayHDR 400
Curved Surface ScreenFlat Panel
HDMI2 x HDMI 2.1
DisplayPort1 x DisplayPort 1.4
Video Ports1 x DisplayPort 1.4 / 1 x USB-C (DP Alternative) / 2 x HDMI 2.1
USB Ports1 x USB 3.0 Upstream / 1 x USB Type-C / 2 x USB 3.0 Type-A Downstream
HeadphoneYes
Power Supply100 - 240 VAC, 50/60Hz
Power ConsumptionPower Save/Sleep Mode (Max): Less than 0.5W
DC Off (Max): Less than 0.3W
Stand AdjustmentsHeight, Pivot, Swivel, Tilt
Built-in SpeakersYes
Built-in WebcamNo
HDCP SupportYes
VESA Compatibility - Mountable100 x 100mm
FeaturesHDR Effect
Factory Calibrated
VRR
Flicker Safe
Reader Mode
Color Weakness Mode
Black Stabilizer
Dynamic Action Sync
Crosshair
FPS Counter
User Define Key
Auto Input Switch
Smart Energy Saving
LG Switch
Dimensions15.3"-21.2" x 24.2" x 9.4" with stand
14.4“ x 24.2" x 2.3" without stand
Weight12.1 lbs. with stand
7.5 lbs. without stand
Shipping weight10.09 kg
Package size808 × 457 × 152 mm

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