Dell Alienware 27 240Hz QD-OLED (AW2726DM) vs Dell Alienware 34 280Hz QD-OLED (AW3426DW)

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Alienware 27 240Hz QD-OLED (AW2726DM) compared with Alienware 34 280Hz QD-OLED (AW3426DW)

	DellAlienware 27 240Hz QD-OLED (AW2726DM)	DellAlienware 34 280Hz QD-OLED (AW3426DW)
Overview
Released
Released	April 2026	June 2026
Display
Screen size
Screen size	26.5″	34″
Resolution
Resolution	2560 × 1440 (QHD)	3440 × 1440 (UWQHD) (better)
Sharpness
Sharpness	111 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)	200 nits	300 nits (better)
HDR peak brightness
HDR peak brightness	400 nits	1,300 nits (better)
HDR certification
HDR certification	–	DisplayHDR True Black 500
HDR formats
HDR formats	HDR10	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
Screen finish
Screen finish	Glossy	Glossy
Shape
Shape	Flat	Curved (1800R)
Adaptive sync
Adaptive sync	FreeSync Premium, VESA AdaptiveSync, HDMI VRR	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)
Colour modes
Colour modes	–	Standard, Creator (DCI-P3 or sRGB), FPS, MOBA/RTS, RPG, Sports, three custom game modes
HDR detail
HDR detail	400 cd/m² peak (Dell UK); HDR10; Smart HDR modes Desktop, Movie HDR and Game HDR	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	48–240 Hz over DisplayPort; 48–120 Hz over HDMI (vertical scan 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	0.2292 mm x 0.2292 mm	0.2315 mm x 0.2315 mm
Eye care
Eye care	Hardware low blue light (TÜV Rheinland Category 3); TÜV Rheinland Eye Comfort 3.0 (3 star); flicker-free	Hardware low blue light (TÜV Rheinland Hardware Solution); flicker-free
Burn-in protection
Burn-in protection	Pixel refresh and panel health indicator	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 (TMDS), DisplayPort 1.4	2 × HDMI 2.1, DisplayPort 1.4
USB-C charging
USB-C charging	None	None
USB ports
USB ports	–	USB-C, USB-A
Ethernet
Ethernet	No	No
Speakers
Speakers	No	No
HDMI detail
HDMI detail	2 x HDMI (HDCP 1.4 & 2.3), up to 2560 x 1440 at 120 Hz with HDR and VRR as specified in HDMI 2.1 (TMDS)	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 2560 x 1440 at 240 Hz with HDR, DSC and AdaptiveSync	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 (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)
Picture by picture
Picture by picture	–	Picture by Picture and Picture in Picture
Audio out
Audio out	3.5 mm headphone jack	–
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	5.9 kg	7.91 kg
Height adjustment
Height adjustment	130 mm	110 mm
Tilt
Tilt	-5° to 21°	-5° to 21°
Swivel
Swivel	-360° to 360°	-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	609.31 x 233.40 x 393.32–523.32 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	609.31 x 41.95 x 354.30 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	3.90 kg	4.88 kg
Controls
Controls	–	Joystick
Colours
Colours	Black	Black
Power and support
Power use
Power use	21 W on mode, 0.3 W standby, 0.3 W off, 70 W maximum	31.0 W on mode, 0.5 W standby, 0.3 W off, 190 W maximum
Energy class
Energy class	E	F
Power supply
Power supply	100–240 VAC, 50/60 Hz, 1.5 A (maximum)	100–240 VAC, 50/60 Hz, 2.8 A (typical)
Software
Software	–	Alienware Command Center
Certifications
Certifications	TÜV Rheinland Eye Comfort 3.0 (3 star), TÜV Rheinland hardware low blue light (Category 3)	–
Warranty
Warranty	3 years limited hardware with Advanced Exchange Service and Premium Panel Exchange (UK)	3 years limited hardware with Advanced Exchange Service and Premium Panel Exchange, including burn-in (UK)
In the box
In the box	Stand, Allen key and four M4 screws, power cable, DisplayPort cable (1.8 m), HDMI cable (1.8 m)	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