Dell Alienware 34 280Hz QD-OLED (AW3426DW) vs LG UltraGear OLED 34GX900A

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Alienware 34 280Hz QD-OLED (AW3426DW) compared with UltraGear OLED 34GX900A

	DellAlienware 34 280Hz QD-OLED (AW3426DW)	LGUltraGear OLED 34GX900A
Overview
Released
Released	June 2026	September 2025
Display
Screen size
Screen size	34″	34″
Resolution
Resolution	3440 × 1440 (UWQHD)	3440 × 1440 (UWQHD)
Sharpness
Sharpness	110 pixels per inch	110 pixels per inch
Panel
Panel	QD-OLED (Penta Tandem QD-OLED)	OLED (LG Display WOLED with MLA+ (TFTCentral))
Refresh rate
Refresh rate	280 Hz (better)	240 Hz
Response time (grey to grey)
Response time (grey to grey)	0.03 ms	0.03 ms
Brightness (typical)
Brightness (typical)	300 nits (better)	275 nits
HDR peak brightness
HDR peak brightness	1,300 nits	1,300 nits
HDR certification
HDR certification	DisplayHDR True Black 500	DisplayHDR True Black 400
HDR formats
HDR formats	HDR10, Dolby Vision	HDR10
Contrast ratio
Contrast ratio	1,500,000:1	1,500,000:1
Colour range
Colour range	99% DCI-P3	98.5% DCI-P3 (typical)
DCI-P3 coverage
DCI-P3 coverage	99% (better)	98.5%
Colour accuracy (Delta E)
Colour accuracy (Delta E)	Below 2	–
Screen finish
Screen finish	Glossy	–
Shape
Shape	Curved (1800R)	Curved (800R)
Adaptive sync
Adaptive sync	G-Sync Compatible, FreeSync Premium Pro, VESA AdaptiveSync, HDMI VRR	FreeSync Premium Pro, G-Sync Compatible
Subpixel layout
Subpixel layout	RGB stripe	–
Colour depth
Colour depth	1.07 billion colours (10-bit)	1.07 billion colours
Colour accuracy
Colour accuracy	Delta E < 2 (average) (sRGB, DCI-P3)	–
Colour modes
Colour modes	Standard, Creator (DCI-P3 or sRGB), FPS, MOBA/RTS, RPG, Sports, three custom game modes	Reader Mode, Colour Weakness mode
HDR detail
HDR detail	1300 cd/m² HDR peak at 3% APL; Smart HDR modes Desktop, Movie HDR, Game HDR, Custom Color HDR, DisplayHDR True Black (500 cd/m²), HDR Peak 1300 and HDR Peak 1300 Bright	HDR10; VESA DisplayHDR True Black 400; 1,300 nits peak (TFTCentral, from LG)
Variable refresh range
Variable refresh range	48–280 Hz (vertical scan range)	–
Viewing angles
Viewing angles	178° horizontal, 178° vertical (typical)	178° / 178°
Pixel pitch
Pixel pitch	0.2315 mm x 0.2315 mm	0.231 × 0.231 mm
Calibration
Calibration	–	Factory calibrated; hardware calibration ready (LG Calibration Studio)
Eye care
Eye care	Hardware low blue light (TÜV Rheinland Hardware Solution); flicker-free	–
Burn-in protection
Burn-in protection	Anti-burn-in algorithm, graphite heat-dispersion sheet, pixel refresh, pixel shift and panel health indicator; 3-year warranty includes burn-in	–
Connections
Video inputs
Video inputs	2 × HDMI 2.1, DisplayPort 1.4	2 × HDMI 2.1, DisplayPort 1.4, USB-C
USB-C charging
USB-C charging	None	Up to 65 W (better)
USB ports
USB ports	USB-C, USB-A	2 × USB-A
Ethernet
Ethernet	No	–
Speakers
Speakers	No	Yes
HDMI detail
HDMI detail	2 x HDMI 2.1 FRL (HDCP 1.4 & 2.3), up to 3440 x 1440 at 280 Hz with HDR, VRR and DSC; up to 3840 x 2160 at 120 Hz in Console Mode	2 × HDMI 2.1 (cable included)
DisplayPort detail
DisplayPort detail	1 x DisplayPort 1.4 (HDCP 1.4 & 2.3), up to 3440 x 1440 at 280 Hz with DSC and HDR	DisplayPort 1.4 with DSC
USB-C detail
USB-C detail	1 x USB-C 5Gbps downstream port with 15 W charging (data only, no video)	USB-C with DisplayPort Alt Mode and 65 W power delivery
USB hub detail
USB hub detail	USB 5Gbps; 1 x Type-B upstream; 1 x Type-A downstream; 1 x USB-C downstream (15 W)	2 × USB 3.0 downstream
Picture by picture
Picture by picture	Picture by Picture and Picture in Picture	PIP; 2-way PBP
Audio out
Audio out	–	4-pole headphone out (sound and mic)
Speaker detail
Speaker detail	–	2 × 7 W
Design
Stand adjusts
Stand adjusts	Height, tilt, swivel	Height, tilt, swivel
VESA mount
VESA mount	Yes	Yes
Weight with stand
Weight with stand	7.91 kg	10.4 kg
Height adjustment
Height adjustment	110 mm	–
Tilt
Tilt	-5° to 21°	–
Swivel
Swivel	-20° to 20°	–
VESA pattern
VESA pattern	100 x 100 mm	100 × 100 mm
Size with stand
Size with stand	814.15 x 232 x 445.08–555.08 mm (W x D x H)	784.1 × 291.8 × 470.4–580.4 mm (W × D × H)
Size without stand
Size without stand	814.15 x 111.23 x 361.55 mm (W x D x H)	784.1 × 167.1 × 358.3 mm (W × D × H)
Weight without stand
Weight without stand	4.88 kg	6.2 kg
Controls
Controls	Joystick	User-defined key; auto input switch; dual controller; game features include Black Stabiliser, Dynamic Action Sync, Crosshair and FPS Counter
Colours
Colours	Black	–
Power and support
Power use
Power use	31.0 W on mode, 0.5 W standby, 0.3 W off, 190 W maximum	Less than 0.5 W sleep, less than 0.3 W off
Energy class
Energy class	F	–
Power supply
Power supply	100–240 VAC, 50/60 Hz, 2.8 A (typical)	External adapter, 100–240 V
Software
Software	Alienware Command Center	–
Warranty
Warranty	3 years limited hardware with Advanced Exchange Service and Premium Panel Exchange, including burn-in (UK)	–
In the box
In the box	Stand, power cable, DisplayPort 1.4 cable (1.8 m), HDMI 2.1 FRL cable (1.8 m), USB-A to USB-B 5Gbps cable (1.8 m), microfibre cloth	HDMI 2.1 cable, USB-C cable, DisplayPort cable