Dell Alienware 34 Curved QD-OLED (AW3423DW) vs LG UltraGear OLED 34GX900A

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Alienware 34 Curved QD-OLED (AW3423DW) compared with UltraGear OLED 34GX900A

	DellAlienware 34 Curved QD-OLED (AW3423DW)	LGUltraGear OLED 34GX900A
Overview
Released
Released	2022	September 2025
Display
Screen size
Screen size	34.18″	34″
Resolution
Resolution	3440 × 1440 (UWQHD)	3440 × 1440 (UWQHD)
Sharpness
Sharpness	109 pixels per inch	110 pixels per inch (better)
Panel
Panel	QD-OLED	OLED (LG Display WOLED with MLA+ (TFTCentral))
Refresh rate
Refresh rate	175 Hz	240 Hz (better)
Response time (grey to grey)
Response time (grey to grey)	0.1 ms	0.03 ms (better)
Brightness (typical)
Brightness (typical)	250 nits	275 nits (better)
HDR peak brightness
HDR peak brightness	1,000 nits	1,300 nits (better)
HDR certification
HDR certification	DisplayHDR True Black 400	DisplayHDR True Black 400
HDR formats
HDR formats	–	HDR10
Contrast ratio
Contrast ratio	1,000,000:1	1,500,000:1
Colour range
Colour range	99.3% DCI-P3	98.5% DCI-P3 (typical)
DCI-P3 coverage
DCI-P3 coverage	99.3% (better)	98.5%
Shape
Shape	Curved (1800R)	Curved (800R)
Adaptive sync
Adaptive sync	G-Sync	FreeSync Premium Pro, G-Sync Compatible
Subpixel layout
Subpixel layout	Triangular RGB arrangement (TFTCentral)	–
Colour depth
Colour depth	1.07 billion colours up to 144Hz; 16.7 million colours at 175Hz	1.07 billion colours
sRGB coverage
sRGB coverage	149% sRGB (maker stated gamut)	–
Colour modes
Colour modes	Creator mode offers sRGB and DCI-P3 presets (TFTCentral)	Reader Mode, Colour Weakness mode
HDR detail
HDR detail	DisplayHDR True Black 400; HDR Peak 1000 mode; per-pixel light control	HDR10; VESA DisplayHDR True Black 400; 1,300 nits peak (TFTCentral, from LG)
Response time detail
Response time detail	Maker's 0.1ms figure is grey to grey	–
Viewing angles
Viewing angles	178° horizontal and vertical	178° / 178°
Pixel pitch
Pixel pitch	0.23 mm	0.231 × 0.231 mm
Calibration
Calibration	–	Factory calibrated; hardware calibration ready (LG Calibration Studio)
Eye care
Eye care	ComfortView Plus hardware low blue light, TÜV Rheinland certified; ambient light sensor	–
Burn-in protection
Burn-in protection	Pixel shifting, pixel refresh and panel refresh (TFTCentral); three-year maker warranty includes OLED burn-in	–
Connections
Video inputs
Video inputs	2 × HDMI 2.0, 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	4 × USB-A	2 × USB-A
Speakers
Speakers	No	Yes
HDMI detail
HDMI detail	2 x HDMI 2.0; up to 3440 x 1440 at 100Hz	2 × HDMI 2.1 (cable included)
DisplayPort detail
DisplayPort detail	1 x DisplayPort 1.4; up to 3440 x 1440 at 175Hz	DisplayPort 1.4 with DSC
USB-C detail
USB-C detail	–	USB-C with DisplayPort Alt Mode and 65 W power delivery
USB hub detail
USB hub detail	USB 3.2 Gen 1, 5Gbps; one USB-B upstream and four USB-A downstream, including one front-bottom BC 1.2 charging port at up to 2A	2 × USB 3.0 downstream
Picture by picture
Picture by picture	–	PIP; 2-way PBP
Audio out
Audio out	Rear line output and bottom headphone output	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	10.37 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	815.25 x 305.71 x 415.57 mm (W x D x H, lowest position)	784.1 × 291.8 × 470.4–580.4 mm (W × D × H)
Size without stand
Size without stand	815.25 x 137.11 x 364.15 mm (W x D x H)	784.1 × 167.1 × 358.3 mm (W × D × H)
Weight without stand
Weight without stand	6.92 kg	6.2 kg
Controls
Controls	Joystick (TFTCentral); AlienFX lighting	User-defined key; auto input switch; dual controller; game features include Black Stabiliser, Dynamic Action Sync, Crosshair and FPS Counter
Power and support
Power use
Power use	42.3 W on mode; 200 W maximum; 0.5 W standby; 0.3 W off	Less than 0.5 W sleep, less than 0.3 W off
Power supply
Power supply	100–240 VAC, 50/60Hz	External adapter, 100–240 V
Warranty
Warranty	Three-year Advanced Exchange Service and Premium Panel Exchange, including OLED burn-in	–
In the box
In the box	DisplayPort cable, Mini DisplayPort-to-DisplayPort cable, HDMI cable and USB upstream cable	HDMI 2.1 cable, USB-C cable, DisplayPort cable