Dell Alienware 34 240Hz (AW3426DWM) vs LG UltraGear OLED 34GX900A

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Alienware 34 240Hz (AW3426DWM) compared with UltraGear OLED 34GX900A

	DellAlienware 34 240Hz (AW3426DWM)	LGUltraGear OLED 34GX900A
Overview
Released
Released	July 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	VA	OLED (LG Display WOLED with MLA+ (TFTCentral))
Refresh rate
Refresh rate	240 Hz	240 Hz
Response time (grey to grey)
Response time (grey to grey)	1 ms	0.03 ms (better)
Brightness (typical)
Brightness (typical)	400 nits (better)	275 nits
HDR peak brightness
HDR peak brightness	450 nits	1,300 nits (better)
HDR certification
HDR certification	DisplayHDR 400	DisplayHDR True Black 400
HDR formats
HDR formats	HDR10, Dolby Vision	HDR10
Contrast ratio
Contrast ratio	3,000:1	1,500,000:1
Colour range
Colour range	95% DCI-P3	98.5% DCI-P3 (typical)
DCI-P3 coverage
DCI-P3 coverage	95%	98.5% (better)
Screen finish
Screen finish	Matte	–
Shape
Shape	Curved (1500R)	Curved (800R)
Adaptive sync
Adaptive sync	FreeSync Premium, VESA AdaptiveSync, HDMI VRR	FreeSync Premium Pro, G-Sync Compatible
Colour depth
Colour depth	1.07 billion colours (8-bit + FRC)	1.07 billion colours
Colour modes
Colour modes	–	Reader Mode, Colour Weakness mode
HDR detail
HDR detail	450 cd/m² (typical) in HDR 400	HDR10; VESA DisplayHDR True Black 400; 1,300 nits peak (TFTCentral, from LG)
Response time detail
Response time detail	1 ms (Extreme), 2 ms (Super Fast), 4 ms (Fast)	–
Variable refresh range
Variable refresh range	48–240 Hz (vertical scan range)	–
Viewing angles
Viewing angles	178° horizontal, 178° vertical (typical)	178° / 178°
Pixel pitch
Pixel pitch	0.23175 mm x 0.23175 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	–
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 240 Hz with DSC, HDR and VRR; HDMI 1 has eARC/ARC	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 240 Hz with DSC, HDR and VRR	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	HDMI eARC/ARC	4-pole headphone out (sound and mic)
Speaker detail
Speaker detail	–	2 × 7 W
Design
Stand adjusts
Stand adjusts	Height, tilt	Height, tilt, swivel (better)
VESA mount
VESA mount	Yes	Yes
Weight with stand
Weight with stand	9.76 kg	10.4 kg
Height adjustment
Height adjustment	110 mm	–
Tilt
Tilt	-5° to 21°	–
VESA pattern
VESA pattern	100 x 100 mm	100 × 100 mm
Size with stand
Size with stand	805.45 x 232 x 444.69–554.69 mm (W x D x H)	784.1 × 291.8 × 470.4–580.4 mm (W × D × H)
Size without stand
Size without stand	805.45 x 132.46 x 360.85 mm (W x D x H)	784.1 × 167.1 × 358.3 mm (W × D × H)
Weight without stand
Weight without stand	6.80 kg	6.2 kg
Controls
Controls	–	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	32 W on mode, 0.3 W standby, 0.3 W off, 100 W maximum	Less than 0.5 W sleep, less than 0.3 W off
Energy class
Energy class	G	–
Power supply
Power supply	100–240 VAC, 50/60 Hz, 1.5 A (typical)	External adapter, 100–240 V
Software
Software	Alienware Command Center	–
Warranty
Warranty	3 years with Advanced Exchange (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)	HDMI 2.1 cable, USB-C cable, DisplayPort cable