Request a product

Dell Alienware 27 280Hz QD-OLED (AW2725D) vs Dell Alienware 34 240Hz (AW3426DWM)

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

Better figure, where one is clearly better

DellAlienware 27 280Hz QD-OLED (AW2725D)DellAlienware 34 240Hz (AW3426DWM)
Overview
ReleasedJuly 2025July 2026
Display
Screen size26.7″34″
Resolution2560 × 1440 (QHD)3440 × 1440 (UWQHD)
Sharpness110 pixels per inch110 pixels per inch
PanelQD-OLEDVA
Refresh rate280 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 1–
Screen finishGlossyMatte
ShapeFlatCurved (1500R)
Adaptive syncG-Sync Compatible, FreeSync Premium Pro, VESA AdaptiveSync, HDMI VRRFreeSync Premium, VESA AdaptiveSync, HDMI VRR
Colour depth1.07 billion colours (10-bit over HDMI)1.07 billion colours (8-bit + FRC)
Colour accuracyDelta E < 1 (average) (sRGB); Delta E < 2 (average) (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 range48–280 Hz (vertical scan range)48–240 Hz (vertical scan range)
Viewing angles178° horizontal, 178° vertical (typical)178° horizontal, 178° vertical (typical)
Pixel pitch0.2292 mm x 0.2292 mm0.23175 mm x 0.23175 mm
Eye careComfortView Plus hardware low blue light (TÜV Rheinland Category 3); flicker-freeHardware low blue light (TÜV Rheinland Hardware Solution); flicker-free
Burn-in protectionPixel refresh and panel health indicator–
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 2560 x 1440 at 280 Hz, 10-bit, with HDR and VRR; up to 2160p input for consoles2 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 2560 x 1440 at 280 Hz with HDR, DSC and VRR1 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 (data only, 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, swivel, pivotHeight, tilt
VESA mountYesYes
Weight with stand6.35 kg9.76 kg
Height adjustment110 mm110 mm
Tilt-5° to 21°-5° to 21°
Swivel-20° to 20°–
Pivot-90° to 90°–
VESA pattern100 x 100 mm100 x 100 mm
Size with stand609.51 x 206.00 x 406.41–516.41 mm (W x D x H)805.45 x 232 x 444.69–554.69 mm (W x D x H)
Size without stand609.51 x 69.48 x 355.58 mm (W x D x H)805.45 x 132.46 x 360.85 mm (W x D x H)
Weight without stand3.92 kg6.80 kg
ColoursDark BlueBlack
Power and support
Power use25.3 W on mode, 0.5 W standby, 0.3 W off, 120 W maximum32 W on mode, 0.3 W standby, 0.3 W off, 100 W maximum
Energy classFG
Power supply100–240 VAC, 50/60 Hz, 1.5 A (typical)100–240 VAC, 50/60 Hz, 1.5 A (typical)
SoftwareAlienware Command CenterAlienware Command Center
Warranty3 years Basic Support with Advanced Exchange Service (UK)3 years with Advanced Exchange (UK)
In the boxStand, 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 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)

More comparisons