LG UltraGear 27GR83Q-B vs LG UltraGear OLED GX7 (27GX790B)

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UltraGear 27GR83Q-B compared with UltraGear OLED GX7 (27GX790B)

	LGUltraGear 27GR83Q-B	LGUltraGear OLED GX7 (27GX790B)
Overview
Released
Released	2023	March 2026
Display
Screen size
Screen size	27″	26.5″
Resolution
Resolution	2560 × 1440 (QHD)	2560 × 1440 (QHD)
Sharpness
Sharpness	109 pixels per inch	111 pixels per inch (better)
Panel
Panel	IPS	OLED (4th Gen Primary RGB Tandem OLED; Dual mode: 720p at 720 Hz)
Refresh rate
Refresh rate	240 Hz	540 Hz (better)
Response time (grey to grey)
Response time (grey to grey)	1 ms	0.02 ms (better)
Brightness (typical)
Brightness (typical)	400 nits (better)	335 nits
HDR peak brightness
HDR peak brightness	–	1,500 nits
HDR certification
HDR certification	DisplayHDR 400	DisplayHDR True Black 500
HDR formats
HDR formats	HDR10	–
Contrast ratio
Contrast ratio	1,000:1	–
Colour range
Colour range	95% DCI-P3 (CIE 1976)	99.5% DCI-P3
DCI-P3 coverage
DCI-P3 coverage	95%	99.5% (better)
Screen finish
Screen finish	–	Matte
Shape
Shape	Flat	Flat
Adaptive sync
Adaptive sync	G-Sync Compatible, FreeSync Premium	–
Colour depth
Colour depth	1.07 billion colours	1.07B colours
Colour modes
Colour modes	Reader Mode and colour weakness mode	–
Response time detail
Response time detail	1ms grey to grey in Faster mode	–
Viewing angles
Viewing angles	178° horizontal and vertical, CR ≥ 10	178° horizontal, 178° vertical (CR ≥ 10)
Pixel pitch
Pixel pitch	0.2331 x 0.2331 mm	0.2292 × 0.2292 mm
Eye care
Eye care	Flicker Safe and Reader Mode	Reader Mode, Color Weakness mode
Calibration
Calibration	Factory calibration and hardware calibration support	Factory calibrated; hardware calibration ready (LG Calibration Studio)
Connections
Video inputs
Video inputs	2 × HDMI 2.1, DisplayPort 1.4	2 × HDMI 2.1, DisplayPort 2.1, USB-C
USB-C charging
USB-C charging	None	Up to 5 W (better)
USB ports
USB ports	2 × USB-A	2 × USB-A
Ethernet
Ethernet	–	No
Speakers
Speakers	No	–
HDMI detail
HDMI detail	2 x HDMI 2.1; 2560 x 1440 at 240Hz	–
DisplayPort detail
DisplayPort detail	1 x DisplayPort 1.4; 2560 x 1440 at 240Hz	–
USB hub detail
USB hub detail	USB 3.0; one upstream and two downstream ports	2 × USB 3.0 downstream, upstream via USB-C
Picture by picture
Picture by picture	No picture in picture or picture by picture	–
Audio out
Audio out	Four-pole headphone and microphone jack with DTS Headphone:X	4-pole headphone out (sound + mic)
Design
Stand adjusts
Stand adjusts	Height, tilt, pivot	Height, tilt, swivel, pivot (better)
VESA mount
VESA mount	Yes	Yes
Weight with stand
Weight with stand	6.2 kg	6.8 kg
Height adjustment
Height adjustment	110 mm	–
Tilt
Tilt	-5° to +15°	–
Pivot
Pivot	90° clockwise	–
VESA pattern
VESA pattern	100 x 100 mm	100 × 100 mm
Size with stand
Size with stand	613.5 x 253.7 x 467.7–577.7 mm (W x D x H)	605.2 × 527.6 × 220 mm (raised), 605.2 × 397.6 × 220 mm (lowered)
Size without stand
Size without stand	613.5 x 51.3 x 371.6 mm (W x D x H)	605.2 × 351.0 × 51.2 mm
Weight without stand
Weight without stand	4.3 kg	4.3 kg
Power and support
Power use
Power use	≤ 0.5 W sleep; ≤ 0.3 W off; LG Korea lists 31.8 W on mode, while LG Greece lists 50 W typical	Less than 0.5 W (sleep), less than 0.3 W (DC off)
Power supply
Power supply	External adapter; 100–240V, 50/60Hz	External adapter, 100–240 V AC, 50/60 Hz
Software
Software	LG Calibration Studio and OnScreen Control (LG Korea)	LG Calibration Studio (True Color Pro), Dual Controller
In the box
In the box	Adapter, power cable, DisplayPort cable, HDMI cable and USB A to B cable	HDMI 2.1 and DisplayPort 2.1 cables