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ASUS ROG Strix OLED XG27UCDMG vs Dell Alienware 27 4K QD-OLED (AW2725Q)

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

Better figure, where one is clearly better

ASUSROG Strix OLED XG27UCDMGDellAlienware 27 4K QD-OLED (AW2725Q)
Overview
ReleasedApril 2025January 2025
Display
Screen size26.5″26.7″
Resolution3840 × 2160 (4K)3840 × 2160 (4K)
Sharpness166 pixels per inch165 pixels per inch
PanelQD-OLED (4th-gen Tandem QD-OLED)QD-OLED
Refresh rate240 Hz240 Hz
Response time (grey to grey)0.03 ms0.03 ms
Brightness (typical)250 nits250 nits
HDR peak brightness1,000 nits1,000 nits
HDR certificationDisplayHDR True Black 400DisplayHDR True Black 400
HDR formatsHDR10HDR10, Dolby Vision
Contrast ratio1,500,000:11,500,000:1
Colour range99% DCI-P3, 145% sRGB99% DCI-P3
DCI-P3 coverage99%99%
Colour accuracy (Delta E)–Below 2
Screen finish–Glossy
ShapeFlatFlat
Adaptive syncFreeSync Premium Pro, G-Sync Compatible, VESA AdaptiveSyncG-Sync Compatible, FreeSync Premium Pro, VESA AdaptiveSync
Colour depth10-bit (1.07 billion colours)1.07 billion colours
sRGB coverage145%–
Colour accuracyΔE < 2; colour calibration report via DisplayWidget CenterDelta E < 2 (average) (sRGB, DCI-P3)
Colour modes–Standard, FPS, MOBA/RTS, RPG, Sports, Creator (DCI-P3 or sRGB, gamma 1.8 to 2.6), Game 1–3, Warm, Cool, Custom Color
HDR detailHDR10; 1,000 cd/m² peakPeak 1000 cd/m² at 3% APL; Smart HDR modes Desktop, Movie HDR, Game HDR, Custom Color HDR, DisplayHDR True Black (400 cd/m²) and HDR Peak 1000
Motion blur reductionExtreme Low Motion Blur–
Viewing angles178° / 178° (CR ≥ 10)178° horizontal, 178° vertical (typical)
Pixel pitch0.153 mm0.153 mm x 0.153 mm
Eye careFlicker-free, OLED Anti-Flicker 2.0, TÜV Low Blue Light (hardware)ComfortView Plus hardware low blue light (TÜV Rheinland Hardware Solution); flicker-free
Burn-in protectionASUS OLED Care Pro, custom heatsink, Neo Proximity SensorPixel refresh, pixel shift and panel health indicator; graphite heat-sink sheet; 3-year warranty includes burn-in
Connections
Video inputs2 × HDMI 2.1, DisplayPort 1.4, USB-C2 × HDMI 2.1, DisplayPort 1.4
USB-C chargingUp to 90 WNone
USB ports3 × USB-AUSB-C, 3 × USB-A
KVM switchYes–
EthernetNoNo
SpeakersNoNo
HDMI detail2 x HDMI 2.1 (FRL)2 x HDMI 2.1 FRL (HDCP 1.4 & 2.3), up to 3840 x 2160 at 240 Hz with HDR and VRR; HDMI 1 has eARC/ARC for Dolby Atmos pass-through
DisplayPort detail1 x DisplayPort 1.4 with DSC1 x DisplayPort 1.4 (HDCP 1.4 & 2.3), up to 3840 x 2160 at 240 Hz with DSC
USB-C detail1 x USB-C with DisplayPort Alt Mode and 90 W Power Delivery1 x USB-C 5Gbps downstream port with 15 W charging (no video)
USB hub detail3 x USB-A 3.2 Gen 1 (5 Gbps) downstream, 1 x USB-B upstreamUSB 5Gbps; 1 x Type-B upstream; 3 x Type-A downstream (one with 10 W charging); 1 x USB-C downstream (15 W)
Picture by picturePiP and PbPPicture by Picture and Picture in Picture
Audio outEarphone jackHDMI eARC/ARC (Dolby Atmos pass-through)
Design
Stand adjustsHeight, tilt, swivel, pivotHeight, tilt, swivel, pivot
VESA mountYesYes
Weight with stand7.44 kg6.79 kg
Height adjustment0–120 mm110 mm
Tilt-5° to 20°-5° to 21°
Swivel-45° to 45°-20° to 20°
Pivot-90° to 90°-90° to 90°
VESA pattern100 x 100 mm100 x 100 mm
Size with stand610.3 x 389.4–509.4 x 168.7 mm (W x H x D)609.51 x 210 x 406.01–516.01 mm (W x D x H)
Size without stand610.3 x 369.2 x 66.5 mm (W x H x D)609.51 x 72.63 x 355.97 mm (W x D x H)
Weight without stand5.0 kg4.30 kg
Controls1/4-inch tripod socket on the stand, Aura Sync lightingJoystick with Menu Launcher on-screen menu
ColoursBlackInterstellar Indigo
Power and support
Power useLess than 80 W on (200 nits), less than 0.5 W power saving, less than 0.3 W off39.4 W on mode, 0.5 W standby, 0.3 W off, 190 W maximum
Power supplyAC 100–240 V, 50/60 Hz100–240 VAC, 50/60 Hz, 2.2 A (typical)
SoftwareDisplayWidget CenterAlienware Command Center 6.6
CertificationsVESA DisplayHDR 400 True Black, VESA AdaptiveSync Display 240Hz, AMD FreeSync Premium Pro, G-SYNC Compatible, TÜV Flicker-free, TÜV Low Blue LightENERGY STAR 8.0, TCO Certified, TÜV Rheinland low blue light (hardware)
Warranty3 years, including panel burn-in3 years limited hardware with Advanced Exchange Service, including burn-in (UK)
In the boxDisplayPort cable, HDMI Ultra High Speed cable, USB-C cable, USB 3.2 cable, power cord, VESA mount kit, microfiber cloth, ROG pouchStand, power cable, DisplayPort cable (1.8 m), HDMI cable (1.8 m), USB-A to USB-B 5Gbps cable (1.8 m), microfibre cloth

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