Dell Alienware 27 240Hz QD-OLED (AW2726DM) vs Dell Alienware 34 Curved QD-OLED (AW3423DWF)

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Alienware 27 240Hz QD-OLED (AW2726DM) compared with Alienware 34 Curved QD-OLED (AW3423DWF)

	DellAlienware 27 240Hz QD-OLED (AW2726DM)	DellAlienware 34 Curved QD-OLED (AW3423DWF)
Overview
Released
Released	April 2026	2022
Display
Screen size
Screen size	26.5″	34.18″
Resolution
Resolution	2560 × 1440 (QHD)	3440 × 1440 (UWQHD) (better)
Sharpness
Sharpness	111 pixels per inch (better)	109 pixels per inch
Panel
Panel	QD-OLED	QD-OLED
Refresh rate
Refresh rate	240 Hz (better)	165 Hz
Response time (grey to grey)
Response time (grey to grey)	0.03 ms (better)	0.1 ms
Brightness (typical)
Brightness (typical)	200 nits	250 nits (better)
HDR peak brightness
HDR peak brightness	400 nits	1,000 nits (better)
HDR certification
HDR certification	–	DisplayHDR True Black 400
HDR formats
HDR formats	HDR10	–
Contrast ratio
Contrast ratio	1,500,000:1	1,000,000:1
Colour range
Colour range	99% DCI-P3	99.3% DCI-P3
DCI-P3 coverage
DCI-P3 coverage	99%	99.3% (better)
Colour accuracy (Delta E)
Colour accuracy (Delta E)	–	Below 2
Screen finish
Screen finish	Glossy	–
Shape
Shape	Flat	Curved (1800R)
Adaptive sync
Adaptive sync	FreeSync Premium, VESA AdaptiveSync, HDMI VRR	FreeSync Premium Pro, VESA AdaptiveSync
Subpixel layout
Subpixel layout	–	Triangular RGB arrangement (TechSpot)
Colour depth
Colour depth	1.07 billion colours	1.07 billion colours
sRGB coverage
sRGB coverage	–	149% sRGB (maker stated gamut)
Colour accuracy
Colour accuracy	–	Factory calibration to Delta E < 2
HDR detail
HDR detail	400 cd/m² peak (Dell UK); HDR10; Smart HDR modes Desktop, Movie HDR and Game HDR	250 cd/m² typical SDR and 1,000 cd/m² peak in Dell's US specifications; the UK table lists only the peak under brightness
Response time detail
Response time detail	–	Maker's 0.1ms figure is grey to grey
Variable refresh range
Variable refresh range	48–240 Hz over DisplayPort; 48–120 Hz over HDMI (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	Hardware low blue light (TÜV Rheinland Category 3); TÜV Rheinland Eye Comfort 3.0 (3 star); flicker-free	ComfortView Plus low blue light; flicker-free technology
Burn-in protection
Burn-in protection	Pixel refresh and panel health indicator	Three-year maker warranty includes OLED burn-in
Connections
Video inputs
Video inputs	2 × HDMI 2.1 (TMDS), DisplayPort 1.4	HDMI 2.0, 2 × DisplayPort 1.4
USB-C charging
USB-C charging	None	None
USB ports
USB ports	–	4 × USB-A
Ethernet
Ethernet	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)	1 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 240 Hz with HDR, DSC and AdaptiveSync	2 x DisplayPort 1.4; up to 3440 x 1440 at 165Hz
USB hub detail
USB hub detail	–	USB 3.2 Gen 1, 5Gbps; one upstream and four downstream ports; Dell's UK table lists two BC 1.2 charging ports, while its US page specifies one charging port at up to 2A
Picture by picture
Picture by picture	–	Picture in Picture and Picture by Picture
Audio out
Audio out	3.5 mm headphone jack	Line output and headphone output
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	–
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)	815.25 x 305.71 x 415.57 mm (W x D x H, lowest position, Dell UK)
Size without stand
Size without stand	609.31 x 41.95 x 354.30 mm (W x D x H)	815.25 x 127.11 x 364.15 mm (W x D x H)
Weight without stand
Weight without stand	3.90 kg	6.27 kg
Colours
Colours	Black	Dark Side of the Moon
Power and support
Power use
Power use	21 W on mode, 0.3 W standby, 0.3 W off, 70 W maximum	34 W on mode; 200 W maximum; 0.5 W standby; 0.3 W off
Energy class
Energy class	E	G
Power supply
Power supply	100–240 VAC, 50/60 Hz, 1.5 A (maximum)	100–240 VAC, 50/60Hz
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)	Three-year Advanced Exchange Service and Premium Panel Exchange, including OLED burn-in
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)	DisplayPort cable, USB-C-to-DisplayPort cable and USB upstream cable