Dell Alienware 27 4K QD-OLED (AW2725Q) vs Dell Alienware 34 280Hz QD-OLED (AW3426DW)

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Alienware 27 4K QD-OLED (AW2725Q) compared with Alienware 34 280Hz QD-OLED (AW3426DW)

	DellAlienware 27 4K QD-OLED (AW2725Q)	DellAlienware 34 280Hz QD-OLED (AW3426DW)
Overview
Released
Released	January 2025	June 2026
Display
Screen size
Screen size	26.7″	34″
Resolution
Resolution	3840 × 2160 (4K) (better)	3440 × 1440 (UWQHD)
Sharpness
Sharpness	165 pixels per inch (better)	110 pixels per inch
Panel
Panel	QD-OLED	QD-OLED (Penta Tandem QD-OLED)
Refresh rate
Refresh rate	240 Hz	280 Hz (better)
Response time (grey to grey)
Response time (grey to grey)	0.03 ms	0.03 ms
Brightness (typical)
Brightness (typical)	250 nits	300 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 500
HDR formats
HDR formats	HDR10, Dolby Vision	HDR10, Dolby Vision
Contrast ratio
Contrast ratio	1,500,000:1	1,500,000:1
Colour range
Colour range	99% DCI-P3	99% DCI-P3
DCI-P3 coverage
DCI-P3 coverage	99%	99%
Colour accuracy (Delta E)
Colour accuracy (Delta E)	Below 2	Below 2
Screen finish
Screen finish	Glossy	Glossy
Shape
Shape	Flat	Curved (1800R)
Adaptive sync
Adaptive sync	G-Sync Compatible, FreeSync Premium Pro, VESA AdaptiveSync	G-Sync Compatible, FreeSync Premium Pro, VESA AdaptiveSync, HDMI VRR
Subpixel layout
Subpixel layout	–	RGB stripe
Colour depth
Colour depth	1.07 billion colours	1.07 billion colours (10-bit)
Colour accuracy
Colour accuracy	Delta E < 2 (average) (sRGB, DCI-P3)	Delta E < 2 (average) (sRGB, DCI-P3)
Colour modes
Colour modes	Standard, FPS, MOBA/RTS, RPG, Sports, Creator (DCI-P3 or sRGB, gamma 1.8 to 2.6), Game 1–3, Warm, Cool, Custom Color	Standard, Creator (DCI-P3 or sRGB), FPS, MOBA/RTS, RPG, Sports, three custom game modes
HDR detail
HDR detail	Peak 1000 cd/m² at 3% APL; Smart HDR modes Desktop, Movie HDR, Game HDR, Custom Color HDR, DisplayHDR True Black (400 cd/m²) and HDR Peak 1000	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
Variable refresh range
Variable refresh range	–	48–280 Hz (vertical scan range)
Viewing angles
Viewing angles	178° horizontal, 178° vertical (typical)	178° horizontal, 178° vertical (typical)
Pixel pitch
Pixel pitch	0.153 mm x 0.153 mm	0.2315 mm x 0.2315 mm
Eye care
Eye care	ComfortView Plus hardware low blue light (TÜV Rheinland Hardware Solution); flicker-free	Hardware low blue light (TÜV Rheinland Hardware Solution); flicker-free
Burn-in protection
Burn-in protection	Pixel refresh, pixel shift and panel health indicator; graphite heat-sink sheet; 3-year warranty includes burn-in	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 charging
USB-C charging	None	None
USB ports
USB ports	USB-C, 3 × USB-A	USB-C, USB-A
Ethernet
Ethernet	No	No
Speakers
Speakers	No	No
HDMI detail
HDMI detail	2 x HDMI 2.1 FRL (HDCP 1.4 & 2.3), up to 3840 x 2160 at 240 Hz with HDR and VRR; HDMI 1 has eARC/ARC for Dolby Atmos pass-through	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
DisplayPort detail
DisplayPort detail	1 x DisplayPort 1.4 (HDCP 1.4 & 2.3), up to 3840 x 2160 at 240 Hz with DSC	1 x DisplayPort 1.4 (HDCP 1.4 & 2.3), up to 3440 x 1440 at 280 Hz with DSC and HDR
USB-C detail
USB-C detail	1 x USB-C 5Gbps downstream port with 15 W charging (no video)	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; 3 x Type-A downstream (one with 10 W charging); 1 x USB-C downstream (15 W)	USB 5Gbps; 1 x Type-B upstream; 1 x Type-A downstream; 1 x USB-C downstream (15 W)
Picture by picture
Picture by picture	Picture by Picture and Picture in Picture	Picture by Picture and Picture in Picture
Audio out
Audio out	HDMI eARC/ARC (Dolby Atmos pass-through)	–
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	6.79 kg	7.91 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 210 x 406.01–516.01 mm (W x D x H)	814.15 x 232 x 445.08–555.08 mm (W x D x H)
Size without stand
Size without stand	609.51 x 72.63 x 355.97 mm (W x D x H)	814.15 x 111.23 x 361.55 mm (W x D x H)
Weight without stand
Weight without stand	4.30 kg	4.88 kg
Controls
Controls	Joystick with Menu Launcher on-screen menu	Joystick
Colours
Colours	Interstellar Indigo	Black
Power and support
Power use
Power use	39.4 W on mode, 0.5 W standby, 0.3 W off, 190 W maximum	31.0 W on mode, 0.5 W standby, 0.3 W off, 190 W maximum
Energy class
Energy class	–	F
Power supply
Power supply	100–240 VAC, 50/60 Hz, 2.2 A (typical)	100–240 VAC, 50/60 Hz, 2.8 A (typical)
Software
Software	Alienware Command Center 6.6	Alienware Command Center
Certifications
Certifications	ENERGY STAR 8.0, TCO Certified, TÜV Rheinland low blue light (hardware)	–
Warranty
Warranty	3 years limited hardware with Advanced Exchange Service, including burn-in (UK)	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 cable (1.8 m), HDMI cable (1.8 m), USB-A to USB-B 5Gbps cable (1.8 m), microfibre cloth	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