Dell Alienware 34 240Hz (AW3426DWM) vs Dell UltraSharp 34 Curved Thunderbolt Hub (U3425WE)

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Alienware 34 240Hz (AW3426DWM) compared with UltraSharp 34 Curved Thunderbolt Hub (U3425WE)

	DellAlienware 34 240Hz (AW3426DWM)	DellUltraSharp 34 Curved Thunderbolt Hub (U3425WE)
Overview
Released
Released	July 2026	February 2024
Display
Screen size
Screen size	34″	34.14″
Resolution
Resolution	3440 × 1440 (UWQHD)	3440 × 1440 (UWQHD)
Sharpness
Sharpness	110 pixels per inch (better)	109 pixels per inch
Panel
Panel	VA	IPS (IPS Black)
Refresh rate
Refresh rate	240 Hz (better)	120 Hz
Response time (grey to grey)
Response time (grey to grey)	1 ms (better)	5 ms
Brightness (typical)
Brightness (typical)	400 nits (better)	300 nits
HDR peak brightness
HDR peak brightness	450 nits	–
HDR certification
HDR certification	DisplayHDR 400	–
HDR formats
HDR formats	HDR10, Dolby Vision	–
Contrast ratio
Contrast ratio	3,000:1	2,000:1
Colour range
Colour range	95% DCI-P3	98% DCI-P3, 98% Display P3, 100% sRGB
DCI-P3 coverage
DCI-P3 coverage	95%	98% (better)
Colour accuracy (Delta E)
Colour accuracy (Delta E)	–	Below 2
Screen finish
Screen finish	Matte	Matte
Shape
Shape	Curved (1500R)	Curved (1900R)
Adaptive sync
Adaptive sync	FreeSync Premium, VESA AdaptiveSync, HDMI VRR	–
Colour depth
Colour depth	1.07 billion colours (8-bit + FRC)	1.07 billion colours
sRGB coverage
sRGB coverage	–	100% (CIE 1931)
Colour accuracy
Colour accuracy	–	Delta E < 2 (average) (DCI-P3, Display P3, sRGB, BT.709); factory calibration report in the box
HDR detail
HDR detail	450 cd/m² (typical) in HDR 400	–
Response time detail
Response time detail	1 ms (Extreme), 2 ms (Super Fast), 4 ms (Fast)	5 ms (Fast), 8 ms (Normal)
Variable refresh range
Variable refresh range	48–240 Hz (vertical scan range)	48–120 Hz over DisplayPort and Thunderbolt 4; 48–100 Hz over HDMI (vertical scan range)
Viewing angles
Viewing angles	178° horizontal, 178° vertical (typical)	178° horizontal, 178° vertical (typical)
Pixel pitch
Pixel pitch	0.23175 mm x 0.23175 mm	0.2325 mm x 0.2325 mm
Eye care
Eye care	Hardware low blue light (TÜV Rheinland Hardware Solution); flicker-free	ComfortView Plus hardware low blue light; TÜV Rheinland Eye Comfort 3.0 (5 star); ambient light sensor (Auto Brightness); flicker-free
Connections
Video inputs
Video inputs	2 × HDMI 2.1, DisplayPort 1.4	HDMI 2.1 (TMDS), DisplayPort 1.4, Thunderbolt 4
USB-C charging
USB-C charging	None	Up to 90 W (better)
USB ports
USB ports	USB-C, USB-A	2 × USB-C, 5 × USB-A, Thunderbolt 4
KVM switch
KVM switch	–	Yes
Ethernet
Ethernet	No	Yes
Speakers
Speakers	No	Yes
HDMI detail
HDMI detail	2 x HDMI 2.1 FRL (HDCP 1.4 & 2.3), up to 3440 x 1440 at 240 Hz with DSC, HDR and VRR; HDMI 1 has eARC/ARC	1 x HDMI (HDCP 1.4 & 2.2), up to 3440 x 1440 at 100 Hz TMDS as specified in HDMI 2.1
DisplayPort detail
DisplayPort detail	1 x DisplayPort 1.4 (HDCP 1.4 & 2.3), up to 3440 x 1440 at 240 Hz with DSC, HDR and VRR	1 x DisplayPort 1.4 (HDCP 1.4 & 2.2), up to 3440 x 1440 at 120 Hz
USB-C detail
USB-C detail	1 x USB-C 5Gbps downstream port with 15 W charging (data only, no video)	Thunderbolt 4 upstream (40Gbps, DisplayPort 1.4 Alt Mode, Power Delivery up to 90 W); USB-C 10Gbps upstream (data only); 2 x USB-C 10Gbps downstream quick-access ports (15 W)
Daisy chaining
Daisy chaining	–	Thunderbolt 4 downstream port (video and data, 15 W)
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)	4 x USB-A 10Gbps rear; quick access ports with 1 x USB-A 10Gbps (BC 1.2) and 2 x USB-C 10Gbps (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	3.5 mm audio line out
Speaker detail
Speaker detail	–	2 x 5 W
Design
Stand adjusts
Stand adjusts	Height, tilt	Height, tilt, swivel (better)
VESA mount
VESA mount	Yes	Yes
Weight with stand
Weight with stand	9.76 kg	10.81 kg
Height adjustment
Height adjustment	110 mm	150 mm
Tilt
Tilt	-5° to 21°	-5° to 21°
Swivel
Swivel	–	-30° to 30°
VESA pattern
VESA pattern	100 x 100 mm	100 x 100 mm
Size with stand
Size with stand	805.45 x 232 x 444.69–554.69 mm (W x D x H)	813.46 x 240.43 x 392.83–542.83 mm (W x D x H)
Size without stand
Size without stand	805.45 x 132.46 x 360.85 mm (W x D x H)	813.46 x 105.08 x 359.15 mm (W x D x H)
Weight without stand
Weight without stand	6.80 kg	7.78 kg
Colours
Colours	Black	Silver
Power and support
Power use
Power use	32 W on mode, 0.3 W standby, 0.3 W off, 100 W maximum	31.5 W on mode, 0.5 W standby, 1.9 W networked standby, 0.3 W off, 250 W maximum
Energy class
Energy class	G	F
Power supply
Power supply	100–240 VAC, 50/60 Hz, 1.5 A (typical)	100–240 VAC, 50/60 Hz, 3.2 A (typical)
Software
Software	Alienware Command Center	Dell Display and Peripheral Manager (Easy Arrange)
Certifications
Certifications	–	TÜV Rheinland Eye Comfort 3.0 (5 star), TÜV Rheinland hardware low blue light
Warranty
Warranty	3 years with Advanced Exchange (UK)	3 years limited hardware with Advanced Exchange Service and Premium Panel Exchange (UK)
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)	Stand, power cable, DisplayPort 1.4 cable (1.8 m), HDMI cable (1.8 m), Thunderbolt 4 passive cable (1 m), USB-A to USB-C cable (1 m), factory calibration report