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Dell Alienware 27 360Hz QD-OLED (AW2725DF) vs Dell Alienware 39 5K OLED (AW3926QW)

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

Better figure, where one is clearly better

DellAlienware 27 360Hz QD-OLED (AW2725DF)DellAlienware 39 5K OLED (AW3926QW)
Overview
ReleasedFebruary 2024June 2026
Display
Screen size26.7″38.9″
Resolution2560 × 1440 (QHD)5120 × 2160 (5K2K)
Sharpness110 pixels per inch143 pixels per inch
PanelQD-OLEDOLED (Tandem WOLED with RGB stripe; dual mode 2560 x 1080 at 330 Hz)
Refresh rate360 Hz165 Hz
Response time (grey to grey)0.03 ms0.03 ms
Brightness (typical)250 nits300 nits
HDR peak brightness1,000 nits1,300 nits
HDR certificationDisplayHDR True Black 400DisplayHDR True Black 500
HDR formats–HDR10, Dolby Vision
Contrast ratio1,500,000:11,750,000:1
Colour range99.3% DCI-P399% DCI-P3
DCI-P3 coverage99.3%99%
Colour accuracy (Delta E)Below 2Below 2
Screen finishGlossyGlossy
ShapeFlatCurved (1500R)
Adaptive syncFreeSync Premium Pro, VESA AdaptiveSync, HDMI VRRG-Sync Compatible, FreeSync Premium Pro, VESA AdaptiveSync, HDMI VRR
Subpixel layout–RGB stripe
Colour depth1.07 billion colours1.07 billion colours (10-bit)
Colour accuracyΔE2000 < 2 (average) in the sRGB and DCI-P3 preset modes; factory calibration report in the boxDelta E < 2 (average) (sRGB, DCI-P3)
Colour modesStandard, Creator (sRGB or DCI-P3), FPS, MOBA/RTS, RPG, Sports, three custom game modesStandard, Creator (DCI-P3 or sRGB), FPS, MOBA/RTS, RPG, Sports, three custom game modes
HDR detail450 cd/m² (typical) in DisplayHDR True Black 400; 1000 cd/m² HDR peak; Smart HDR modes Desktop, Movie HDR, Game HDR, Custom Color HDR, DisplayHDR True Black and HDR Peak 10001300 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 range48–360 Hz (vertical scan range)–
Viewing angles178° horizontal, 178° vertical (typical)178° horizontal, 178° vertical (typical)
Pixel pitch0.2292 mm x 0.2292 mm0.1776 mm x 0.1776 mm
Eye careComfortView Plus hardware low blue light (TÜV Rheinland Hardware Solution); flicker-freeFlicker-free
Burn-in protectionPixel refresh and panel health indicator; 3-year warranty includes burn-inAI-based pixel usage algorithm, pixel refresh, pixel shift and panel health indicator; 3-year warranty includes burn-in
Connections
Video inputsHDMI 2.1 (TMDS), 2 × DisplayPort 1.42 × HDMI 2.1, DisplayPort 2.1, USB-C
USB-C chargingNoneUp to 90 W
USB portsUSB-C, 3 × USB-AUSB-C, 2 × USB-A
KVM switch–Yes
EthernetNoNo
SpeakersNoNo
HDMI detail1 x HDMI 2.1 (HDCP 1.4 & 2.3), up to 2560 x 1440 at 144 Hz TMDS with HDR and VRR2 x HDMI 2.1 FRL (HDCP 1.4 & 2.3), up to 5120 x 2160 at 165 Hz or 2560 x 1080 at 330 Hz with HDR and VRR; one with eARC/ARC audio pass-through
DisplayPort detail2 x DisplayPort 1.4 (HDCP 1.4 & 2.3), up to 2560 x 1440 at 360 Hz with HDR and VRR1 x DisplayPort 2.1 UHBR20 (HDCP 1.4 & 2.3), up to 5120 x 2160 at 165 Hz or 2560 x 1080 at 330 Hz
USB-C detail1 x USB-C 5Gbps downstream quick-access port with BC 1.2 charging (no video)USB-C upstream with DisplayPort 2.1 Alt Mode and Power Delivery up to 90 W; 1 x USB-C 5Gbps downstream with 15 W charging
USB hub detailUSB 5Gbps; 1 x Type-B upstream; 2 x Type-A downstream rear; quick access ports with 1 x Type-A and 1 x USB-C (BC 1.2)USB 5Gbps; Type-B and USB-C upstream (KVM for two computers); 2 x Type-A downstream (one with BC 1.2 charging); 1 x USB-C downstream (15 W)
Picture by picturePicture by Picture and Picture in PicturePicture by Picture and Picture in Picture
Audio out–3.5 mm headphone jack; HDMI eARC/ARC
Design
Stand adjustsHeight, tilt, swivel, pivotHeight, tilt, swivel
VESA mountYesYes
Weight with stand6.7 kg11.22 kg
Height adjustment110 mm110 mm
Tilt-5° to 21°-5° to 21°
Swivel-20° to 20°-20° to 20°
Pivot-90° to 90°–
VESA pattern100 x 100 mm100 x 100 mm
Size with stand609.11 x 243.69 x 406.20–516.20 mm (W x D x H)920.49 x 242.50 x 470.10–580.10 mm (W x D x H)
Size without stand609.11 x 67.60 x 359.00 mm (W x D x H)920.49 x 129.65 x 408.24 mm (W x D x H)
Weight without stand4.30 kg7.76 kg
Controls–Joystick
ColoursDark Side of the MoonNova Black
Power and support
Power use27.6 W on mode, 0.5 W standby, 0.3 W off, 130 W maximum40.3 W on mode, 0.5 W standby, 0.3 W off, 360 W maximum
Energy classGG
Power supply100–240 VAC, 50/60 Hz, 2 A (typical)100–240 VAC, 50/60 Hz, 4 A (typical)
SoftwareAlienware Command Center, Dell Display Manager (Easy Arrange)Alienware Command Center
Warranty3 years limited hardware with Advanced Exchange Service and Premium Panel Exchange, including burn-in (UK)3 years limited hardware with Advanced Exchange Service and Premium Panel Exchange, including burn-in (UK)
In the boxStand, I/O cover, power cable, DisplayPort 1.4 cable (1.8 m), USB-C to DisplayPort 1.4 cable (1 m), USB-A to USB-B 5Gbps cable (1.8 m), microfibre cloth, factory calibration reportStand, power cable, USB-C to USB-C 10Gbps 100 W cable (1 m), DisplayPort cable (1.8 m), HDMI 2.1 FRL cable (1.8 m), USB-A to USB-B cable (1.8 m), microfibre cloth

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