LG UltraGear OLED GX7 (27GX790B) vs LG UltraGear OLED 45GX950A

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UltraGear OLED GX7 (27GX790B) compared with UltraGear OLED 45GX950A

	LGUltraGear OLED GX7 (27GX790B)	LGUltraGear OLED 45GX950A
Overview
Released
Released	March 2026	April 2025
Display
Screen size
Screen size	26.5″	44.5″
Resolution
Resolution	2560 × 1440 (QHD)	5120 × 2160 (5K2K) (better)
Sharpness
Sharpness	111 pixels per inch	125 pixels per inch (better)
Panel
Panel	OLED (4th Gen Primary RGB Tandem OLED; Dual mode: 720p at 720 Hz)	OLED (LG Display WOLED with RGWB subpixels; dual mode 2560 × 1080 at 330 Hz (TFTCentral, from LG))
Refresh rate
Refresh rate	540 Hz (better)	165 Hz
Response time (grey to grey)
Response time (grey to grey)	0.02 ms (better)	0.03 ms
Brightness (typical)
Brightness (typical)	335 nits (better)	275 nits
HDR peak brightness
HDR peak brightness	1,500 nits	–
HDR certification
HDR certification	DisplayHDR True Black 500	DisplayHDR True Black 400
HDR formats
HDR formats	–	HDR10
Contrast ratio
Contrast ratio	–	1,500,000:1
Colour range
Colour range	99.5% DCI-P3	98.5% DCI-P3 (typical)
DCI-P3 coverage
DCI-P3 coverage	99.5% (better)	98.5%
Screen finish
Screen finish	Matte	–
Shape
Shape	Flat	Curved (800R)
Adaptive sync
Adaptive sync	–	FreeSync Premium Pro, G-Sync Compatible
Subpixel layout
Subpixel layout	–	RGWB (TFTCentral)
Colour depth
Colour depth	1.07B colours	10-bit, 1.07 billion colours
Colour modes
Colour modes	–	Reader Mode, Colour Weakness mode; HDR Effect
HDR detail
HDR detail	–	HDR10; VESA DisplayHDR True Black 400
Viewing angles
Viewing angles	178° horizontal, 178° vertical (CR ≥ 10)	178° / 178°
Pixel pitch
Pixel pitch	0.2292 × 0.2292 mm	0.2035 × 0.2035 mm
Eye care
Eye care	Reader Mode, Color Weakness mode	–
Calibration
Calibration	Factory calibrated; hardware calibration ready (LG Calibration Studio)	Factory calibrated; hardware calibration ready (LG Calibration Studio)
Connections
Video inputs
Video inputs	2 × HDMI 2.1, DisplayPort 2.1, USB-C	2 × HDMI 2.1, DisplayPort 2.1, USB-C
USB-C charging
USB-C charging	Up to 5 W	Up to 90 W (better)
USB ports
USB ports	2 × USB-A	2 × USB-A
Speakers
Speakers	–	Yes
HDMI detail
HDMI detail	–	2 × HDMI 2.1 (1.8 m cable included)
DisplayPort detail
DisplayPort detail	–	DisplayPort 2.1 with DSC (cable included)
USB-C detail
USB-C detail	–	USB-C with video up to 5120 × 2160 at 165 Hz, data and 90 W power delivery; also the USB upstream port
Ethernet
Ethernet	No	–
USB hub detail
USB hub detail	2 × USB 3.0 downstream, upstream via USB-C	2 × USB 3.0 downstream
Picture by picture
Picture by picture	–	PIP; 2-way PBP
Audio out
Audio out	4-pole headphone out (sound + mic)	4-pole headphone out (sound and mic), DTS Headphone:X
Speaker detail
Speaker detail	–	2 × 10 W, Rich Bass
Design
Stand adjusts
Stand adjusts	Height, tilt, swivel, pivot (better)	Height, tilt, swivel
VESA mount
VESA mount	Yes	Yes
Weight with stand
Weight with stand	6.8 kg	14 kg
VESA pattern
VESA pattern	100 × 100 mm	100 × 100 mm
Size with stand
Size with stand	605.2 × 527.6 × 220 mm (raised), 605.2 × 397.6 × 220 mm (lowered)	991.6 × 342 × 545.6–665.6 mm (W × D × H)
Size without stand
Size without stand	605.2 × 351.0 × 51.2 mm	991.6 × 225.5 × 460.7 mm (W × D × H)
Weight without stand
Weight without stand	4.3 kg	9.4 kg
Controls
Controls	–	4-way joystick; user-defined key; auto input switch; dual controller; Unity Hexagon Lighting
Power and support
Power use
Power use	Less than 0.5 W (sleep), less than 0.3 W (DC off)	Less than 0.5 W sleep, less than 0.3 W off
Power supply
Power supply	External adapter, 100–240 V AC, 50/60 Hz	External adapter, 20 V / 18 A output, 100–240 V input
Software
Software	LG Calibration Studio (True Color Pro), Dual Controller	–
In the box
In the box	HDMI 2.1 and DisplayPort 2.1 cables	HDMI 2.1 cable, DisplayPort 2.1 cable, USB-C cable, power adapter and cord, mouse holder