Dell Alienware 27 280Hz QD-OLED (AW2725D) vs Dell Alienware 34 Curved QD-OLED (AW3423DW)

Every spec side by side, from each maker's published figures.

Only show differences

Better figure, where one is clearly better

Share comparison

Alienware 27 280Hz QD-OLED (AW2725D) compared with Alienware 34 Curved QD-OLED (AW3423DW)

	DellAlienware 27 280Hz QD-OLED (AW2725D)	DellAlienware 34 Curved QD-OLED (AW3423DW)
Overview
Released
Released	July 2025	2022
Display
Screen size
Screen size	26.7″	34.18″
Resolution
Resolution	2560 × 1440 (QHD)	3440 × 1440 (UWQHD) (better)
Sharpness
Sharpness	110 pixels per inch (better)	109 pixels per inch
Panel
Panel	QD-OLED	QD-OLED
Refresh rate
Refresh rate	280 Hz (better)	175 Hz
Response time (grey to grey)
Response time (grey to grey)	0.03 ms (better)	0.1 ms
Brightness (typical)
Brightness (typical)	250 nits	250 nits
HDR peak brightness
HDR peak brightness	1,000 nits	1,000 nits
HDR certification
HDR certification	DisplayHDR True Black 400	DisplayHDR True Black 400
Contrast ratio
Contrast ratio	1,500,000:1	1,000,000:1
Colour range
Colour range	99.3% DCI-P3	99.3% DCI-P3
DCI-P3 coverage
DCI-P3 coverage	99.3%	99.3%
Colour accuracy (Delta E)
Colour accuracy (Delta E)	Below 1	–
Screen finish
Screen finish	Glossy	–
Shape
Shape	Flat	Curved (1800R)
Adaptive sync
Adaptive sync	G-Sync Compatible, FreeSync Premium Pro, VESA AdaptiveSync, HDMI VRR	G-Sync
Subpixel layout
Subpixel layout	–	Triangular RGB arrangement (TFTCentral)
Colour depth
Colour depth	1.07 billion colours (10-bit over HDMI)	1.07 billion colours up to 144Hz; 16.7 million colours at 175Hz
sRGB coverage
sRGB coverage	–	149% sRGB (maker stated gamut)
Colour accuracy
Colour accuracy	Delta E < 1 (average) (sRGB); Delta E < 2 (average) (DCI-P3)	–
Colour modes
Colour modes	Standard, Creator, FPS, MOBA/RTS, RPG, Sports, three custom game modes	Creator mode offers sRGB and DCI-P3 presets (TFTCentral)
HDR detail
HDR detail	1000 cd/m² HDR peak at 3% APL	DisplayHDR True Black 400; HDR Peak 1000 mode; per-pixel light control
Response time detail
Response time detail	–	Maker's 0.1ms figure is grey to grey
Variable refresh range
Variable refresh range	48–280 Hz (vertical scan range)	–
Viewing angles
Viewing angles	178° horizontal, 178° vertical (typical)	178° horizontal and vertical
Pixel pitch
Pixel pitch	0.2292 mm x 0.2292 mm	0.23 mm
Eye care
Eye care	ComfortView Plus hardware low blue light (TÜV Rheinland Category 3); flicker-free	ComfortView Plus hardware low blue light, TÜV Rheinland certified; ambient light sensor
Burn-in protection
Burn-in protection	Pixel refresh and panel health indicator	Pixel shifting, pixel refresh and panel refresh (TFTCentral); three-year maker warranty includes OLED burn-in
Connections
Video inputs
Video inputs	2 × HDMI 2.1, DisplayPort 1.4	2 × HDMI 2.0, DisplayPort 1.4
USB-C charging
USB-C charging	None	None
USB ports
USB ports	USB-C, USB-A	4 × USB-A
Ethernet
Ethernet	No	–
Speakers
Speakers	No	No
HDMI detail
HDMI detail	2 x HDMI 2.1 FRL (HDCP 1.4 & 2.3), up to 2560 x 1440 at 280 Hz, 10-bit, with HDR and VRR; up to 2160p input for consoles	2 x HDMI 2.0; up to 3440 x 1440 at 100Hz
DisplayPort detail
DisplayPort detail	1 x DisplayPort 1.4 (HDCP 1.4 & 2.3), up to 2560 x 1440 at 280 Hz with HDR, DSC and VRR	1 x DisplayPort 1.4; up to 3440 x 1440 at 175Hz
USB-C detail
USB-C detail	1 x USB-C 5Gbps downstream port with 15 W charging (data only, no video)	–
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)	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
Audio out
Audio out	–	Rear line output and bottom headphone output
Picture by picture
Picture by picture	Picture by Picture and Picture in Picture	–
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	6.35 kg	10.37 kg
Height adjustment
Height adjustment	110 mm	110 mm
Tilt
Tilt	-5° to 21°	-5° to 21°
Swivel
Swivel	-20° to 20°	-20° to 20°
Pivot
Pivot	-90° to 90°	–
VESA pattern
VESA pattern	100 x 100 mm	100 x 100 mm
Size with stand
Size with stand	609.51 x 206.00 x 406.41–516.41 mm (W x D x H)	815.25 x 305.71 x 415.57 mm (W x D x H, lowest position)
Size without stand
Size without stand	609.51 x 69.48 x 355.58 mm (W x D x H)	815.25 x 137.11 x 364.15 mm (W x D x H)
Weight without stand
Weight without stand	3.92 kg	6.92 kg
Controls
Controls	–	Joystick (TFTCentral); AlienFX lighting
Colours
Colours	Dark Blue	–
Power and support
Power use
Power use	25.3 W on mode, 0.5 W standby, 0.3 W off, 120 W maximum	42.3 W on mode; 200 W maximum; 0.5 W standby; 0.3 W off
Energy class
Energy class	F	–
Power supply
Power supply	100–240 VAC, 50/60 Hz, 1.5 A (typical)	100–240 VAC, 50/60Hz
Software
Software	Alienware Command Center	–
Warranty
Warranty	3 years Basic Support with Advanced Exchange Service (UK)	Three-year Advanced Exchange Service and Premium Panel Exchange, including OLED burn-in
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	DisplayPort cable, Mini DisplayPort-to-DisplayPort cable, HDMI cable and USB upstream cable