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Gigabyte M27UP vs LG UltraGear 27G850A-B

Every spec side by side, from each maker's published figures.

Better figure, where one is clearly better

GigabyteM27UPLGUltraGear 27G850A-B
Overview
ReleasedJune 2025February 2025
Display
Screen size27″27″
Resolution3840 × 2160 (4K)3840 × 2160 (4K)
Sharpness163 pixels per inch163 pixels per inch
PanelIPS (SS IPS, edge-lit; Dual mode: 1080p at 320 Hz)IPS (Nano IPS Black; dual mode switches to 1920 x 1080 at 480Hz)
Refresh rate160 Hz240 Hz
Response time (grey to grey)1 ms1 ms
Brightness (typical)350 nits450 nits
HDR certificationDisplayHDR 400DisplayHDR 600
HDR formats–HDR10
Contrast ratio1,000:12,000:1
Colour range95% DCI-P399% DCI-P3 (CIE 1976)
DCI-P3 coverage95%99%
Screen finishMatte–
ShapeFlatFlat
Adaptive syncG-Sync CompatibleG-Sync Compatible, FreeSync Premium Pro, VESA AdaptiveSync
Colour depth8-bit + FRC (1.07 billion colours)1.07 billion colours; 8-bit plus FRC (PCW and DisplayNinja)
HDR detail–Eight dimming zones (PCW and DisplayNinja); LG Korea lists 750 nits typical peak brightness and 600 nits minimum peak brightness
sRGB coverage125%–
Response time detail1 ms GTG; Smart OD adjusts overdrive to the refresh rate1ms grey to grey in Faster mode
Viewing angles178° (H) / 178° (V)178° horizontal and vertical, CR ≥ 10
Pixel pitch0.1554 × 0.1554 mm0.1554 x 0.1554 mm
Eye careFlicker-free; TÜV Rheinland-certified low blue lightFlicker Safe, Reader Mode and Live Color Low Blue Light with TÜV Rheinland Eyesafe certification
Calibration–Factory colour calibration and hardware calibration support
Connections
Video inputs2 × HDMI 2.1, DisplayPort 1.4 (DSC), USB-C2 × HDMI 2.1, DisplayPort 2.1
USB-C chargingUp to 18 WNone
USB ports3 × USB-A2 × USB-A
KVM switchYes–
EthernetNo–
SpeakersYesNo
HDMI detail2 × HDMI 2.1; PS5 and Xbox Series X at 4K 120 Hz (4:2:0)2 x HDMI 2.1; 3840 x 2160 at 240Hz or 1920 x 1080 at 480Hz
DisplayPort detail1 × DisplayPort 1.4 (DSC, HBR3)1 x DisplayPort 2.1; 3840 x 2160 at 240Hz or 1920 x 1080 at 480Hz
USB-C detail1 × USB-C (DisplayPort Alt Mode, USB upstream); Power Delivery up to 18 W, or dynamic 45 W in Smart PD mode–
USB hub detail3 × USB 3.2 Gen 1 downstream, 1 × USB 3.2 Gen 1 upstreamUSB 3.2 Gen 1; one USB-B upstream and two USB-A downstream ports
Picture by pictureSupportedNo picture in picture or picture by picture
Audio outHeadphone jackFour-pole headphone and microphone jack with DTS Headphone:X
Speaker detail5 W × 2–
Design
Stand adjustsHeight, tilt, swivel, pivotHeight, tilt, swivel, pivot
VESA mountYesYes
Weight with stand6.65 kg9.4 kg
Height adjustment130 mm110 mm
Tilt-5° to +21°-8° to +15°
Swivel±15°-30° to +30°
Pivot0° to +90° (clockwise)Counter-clockwise portrait rotation
VESA pattern100 × 100 mm100 x 100 mm
Size with stand612 × 515 × 192 mm (W × H × D)614.7 x 249.1 x 471.8–581.8 mm (W x D x H)
Size without stand612 × 371 × 59 mm (W × H × D)614.7 x 68.1 x 365.4 mm (W x D x H)
Weight without stand5.15 kg5.2 kg
ControlsControl button, KVM switch and Tactical Switch buttonRear joystick; user-defined shortcut key
Colours–Black with Unity Hexagon Lighting
Power and support
Power use27 W on (CEC test); under 0.5 W power saving; under 0.3 W off44 W on mode (LG Korea); ≤ 0.5 W sleep; ≤ 0.3 W off
Power supplyBuilt-in power board, AC 100–240 VExternal adapter; 100–240V, 50/60Hz
SoftwareOSD Sidekick (needs a USB-B connection to the PC)LG Switch, LG Calibration Studio and Dual Controller
In the boxPower cable, HDMI 2.1 cable, DisplayPort cable, USB cable, quick start guide, warranty cardAdapter, power cable, HDMI cable, DisplayPort cable and USB A to B cable

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