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Dell Alienware 34 240Hz QD-OLED (AW3425DW) vs Dell Alienware 34 240Hz (AW3426DWM)

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

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DellAlienware 34 240Hz QD-OLED (AW3425DW)DellAlienware 34 240Hz (AW3426DWM)
Overview
ReleasedApril 2025July 2026
Display
Screen size34.2″34″
Resolution3440 × 1440 (UWQHD)3440 × 1440 (UWQHD)
Sharpness109 pixels per inch110 pixels per inch
PanelQD-OLEDVA
Refresh rate240 Hz240 Hz
Response time (grey to grey)0.03 ms1 ms
Brightness (typical)250 nits400 nits
HDR peak brightness1,000 nits450 nits
HDR certificationDisplayHDR True Black 400DisplayHDR 400
HDR formats–HDR10, Dolby Vision
Contrast ratio1,500,000:13,000:1
Colour range99.3% DCI-P395% DCI-P3
DCI-P3 coverage99.3%95%
Colour accuracy (Delta E)Below 2–
Screen finishGlossyMatte
ShapeCurved (1800R)Curved (1500R)
Adaptive syncG-Sync Compatible, FreeSync Premium Pro, VESA AdaptiveSync, HDMI VRRFreeSync Premium, VESA AdaptiveSync, HDMI VRR
Colour depth1.07 billion colours1.07 billion colours (8-bit + FRC)
Colour accuracyDelta E < 2 (average) (sRGB, DCI-P3)–
Colour modesStandard, Creator, FPS, MOBA/RTS, RPG, Sports, three custom game modes–
HDR detail1000 cd/m² HDR peak at 3% APL450 cd/m² (typical) in HDR 400
Response time detail–1 ms (Extreme), 2 ms (Super Fast), 4 ms (Fast)
Variable refresh range48–240 Hz (vertical scan range)48–240 Hz (vertical scan range)
Viewing angles178° horizontal, 178° vertical (typical)178° horizontal, 178° vertical (typical)
Pixel pitch0.2315 mm x 0.2315 mm0.23175 mm x 0.23175 mm
Eye careComfortView Plus hardware low blue light (TÜV Rheinland Hardware Solution); flicker-freeHardware low blue light (TÜV Rheinland Hardware Solution); flicker-free
Burn-in protectionDell gives its QD-OLED Alienware monitors a 3-year limited warranty that covers burn-in–
Connections
Video inputs2 × HDMI 2.1, DisplayPort 1.42 × HDMI 2.1, DisplayPort 1.4
USB-C chargingNoneNone
USB portsUSB-C, USB-AUSB-C, USB-A
EthernetNoNo
SpeakersNoNo
HDMI detail2 x HDMI 2.1 FRL (HDCP 1.4 & 2.3), up to 3440 x 1440 at 240 Hz with HDR and VRR2 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
DisplayPort detail1 x DisplayPort 1.4 (HDCP 1.4 & 2.3), up to 3440 x 1440 at 240 Hz with DSC and HDR1 x DisplayPort 1.4 (HDCP 1.4 & 2.3), up to 3440 x 1440 at 240 Hz with DSC, HDR and VRR
USB-C detail1 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 detailUSB 5Gbps; 1 x Type-B upstream; 1 x Type-A downstream; 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 picturePicture by Picture and Picture in PicturePicture by Picture and Picture in Picture
Audio out–HDMI eARC/ARC
Design
Stand adjustsHeight, tilt, swivelHeight, tilt
VESA mountYesYes
Weight with stand8.14 kg9.76 kg
Height adjustment110 mm110 mm
Tilt-5° to 21°-5° to 21°
Swivel-20° to 20°–
VESA pattern100 x 100 mm100 x 100 mm
Size with stand814.15 x 232 x 445.08–555.08 mm (W x D x H)805.45 x 232 x 444.69–554.69 mm (W x D x H)
Size without stand814.15 x 111.23 x 361.55 mm (W x D x H)805.45 x 132.46 x 360.85 mm (W x D x H)
Weight without stand5.09 kg6.80 kg
Colours–Black
ControlsJoystick–
Power and support
Power use31.0 W on mode, 0.5 W standby, 0.3 W off, 190 W maximum32 W on mode, 0.3 W standby, 0.3 W off, 100 W maximum
Energy class–G
Power supply100–240 VAC, 50/60 Hz, 2.8 A (typical)100–240 VAC, 50/60 Hz, 1.5 A (typical)
SoftwareAlienware Command CenterAlienware Command Center
Warranty–3 years with Advanced Exchange (UK)
In the boxStand, power cable, HDMI 2.1 FRL cable (1.8 m), DisplayPort 1.4 cable (1.8 m), USB-A to USB-B 5Gbps cable (1.8 m), microfibre clothStand, 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)

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