Dell Alienware 27 240Hz QD-OLED (AW2726DM) 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

Alienware 27 240Hz QD-OLED (AW2726DM) compared with Alienware 39 5K OLED (AW3926QW)
DellAlienware 27 240Hz QD-OLED (AW2726DM)DellAlienware 39 5K OLED (AW3926QW)
Overview
ReleasedApril 2026June 2026
Display
Screen size26.5″38.9″
Resolution2560 × 1440 (QHD)5120 × 2160 (5K2K) (better)
Sharpness111 pixels per inch143 pixels per inch (better)
PanelQD-OLEDOLED (Tandem WOLED with RGB stripe; dual mode 2560 x 1080 at 330 Hz)
Refresh rate240 Hz (better)165 Hz
Response time (grey to grey)0.03 ms0.03 ms
Brightness (typical)200 nits300 nits (better)
HDR peak brightness400 nits1,300 nits (better)
HDR certification–DisplayHDR True Black 500
HDR formatsHDR10HDR10, Dolby Vision
Contrast ratio1,500,000:11,750,000:1
Colour range99% DCI-P399% DCI-P3
DCI-P3 coverage99%99%
Colour accuracy (Delta E)–Below 2
Screen finishGlossyGlossy
ShapeFlatCurved (1500R)
Adaptive syncFreeSync Premium, 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 accuracy–Delta E < 2 (average) (sRGB, DCI-P3)
Colour modes–Standard, Creator (DCI-P3 or sRGB), FPS, MOBA/RTS, RPG, Sports, three custom game modes
HDR detail400 cd/m² peak (Dell UK); HDR10; Smart HDR modes Desktop, Movie HDR and Game HDR1300 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 range48–240 Hz over DisplayPort; 48–120 Hz over HDMI (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 careHardware low blue light (TÜV Rheinland Category 3); TÜV Rheinland Eye Comfort 3.0 (3 star); flicker-freeFlicker-free
Burn-in protectionPixel refresh and panel health indicatorAI-based pixel usage algorithm, pixel refresh, pixel shift and panel health indicator; 3-year warranty includes burn-in
Connections
Video inputs2 × HDMI 2.1 (TMDS), DisplayPort 1.42 × HDMI 2.1, DisplayPort 2.1, USB-C
USB-C chargingNoneUp to 90 W (better)
USB ports–USB-C, 2 × USB-A
KVM switch–Yes
EthernetNoNo
SpeakersNoNo
HDMI detail2 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)2 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 detail1 x DisplayPort 1.4 (HDCP 1.4 & 2.3), up to 2560 x 1440 at 240 Hz with HDR, DSC and AdaptiveSync1 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 detail–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 detail–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 picture–Picture by Picture and Picture in Picture
Audio out3.5 mm headphone jack3.5 mm headphone jack; HDMI eARC/ARC
Design
Stand adjustsHeight, tilt, swivel, pivot (better)Height, tilt, swivel
VESA mountYesYes
Weight with stand5.9 kg11.22 kg
Height adjustment130 mm110 mm
Tilt-5° to 21°-5° to 21°
Swivel-360° to 360°-20° to 20°
Pivot-90° to 90°–
VESA pattern100 x 100 mm100 x 100 mm
Size with stand609.31 x 233.40 x 393.32–523.32 mm (W x D x H)920.49 x 242.50 x 470.10–580.10 mm (W x D x H)
Size without stand609.31 x 41.95 x 354.30 mm (W x D x H)920.49 x 129.65 x 408.24 mm (W x D x H)
Weight without stand3.90 kg7.76 kg
Controls–Joystick
ColoursBlackNova Black
Power and support
Power use21 W on mode, 0.3 W standby, 0.3 W off, 70 W maximum40.3 W on mode, 0.5 W standby, 0.3 W off, 360 W maximum
Energy classEG
Power supply100–240 VAC, 50/60 Hz, 1.5 A (maximum)100–240 VAC, 50/60 Hz, 4 A (typical)
Software–Alienware Command Center
CertificationsTÜV Rheinland Eye Comfort 3.0 (3 star), TÜV Rheinland hardware low blue light (Category 3)–
Warranty3 years limited hardware with Advanced Exchange Service and Premium Panel Exchange (UK)3 years limited hardware with Advanced Exchange Service and Premium Panel Exchange, including burn-in (UK)
In the boxStand, Allen key and four M4 screws, power cable, DisplayPort cable (1.8 m), HDMI cable (1.8 m)Stand, 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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