Dell Alienware 34 Curved QD-OLED (AW3423DWF) vs Dell Alienware 39 5K OLED (AW3926QW)

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Alienware 34 Curved QD-OLED (AW3423DWF) compared with Alienware 39 5K OLED (AW3926QW)

	DellAlienware 34 Curved QD-OLED (AW3423DWF)	DellAlienware 39 5K OLED (AW3926QW)
Overview
Released
Released	2022	June 2026
Display
Screen size
Screen size	34.18″	38.9″
Resolution
Resolution	3440 × 1440 (UWQHD)	5120 × 2160 (5K2K) (better)
Sharpness
Sharpness	109 pixels per inch	143 pixels per inch (better)
Panel
Panel	QD-OLED	OLED (Tandem WOLED with RGB stripe; dual mode 2560 x 1080 at 330 Hz)
Refresh rate
Refresh rate	165 Hz	165 Hz
Response time (grey to grey)
Response time (grey to grey)	0.1 ms	0.03 ms (better)
Brightness (typical)
Brightness (typical)	250 nits	300 nits (better)
HDR peak brightness
HDR peak brightness	1,000 nits	1,300 nits (better)
HDR certification
HDR certification	DisplayHDR True Black 400	DisplayHDR True Black 500
HDR formats
HDR formats	–	HDR10, Dolby Vision
Contrast ratio
Contrast ratio	1,000,000:1	1,750,000:1
Colour range
Colour range	99.3% DCI-P3	99% DCI-P3
DCI-P3 coverage
DCI-P3 coverage	99.3% (better)	99%
Colour accuracy (Delta E)
Colour accuracy (Delta E)	Below 2	Below 2
Screen finish
Screen finish	–	Glossy
Shape
Shape	Curved (1800R)	Curved (1500R)
Adaptive sync
Adaptive sync	FreeSync Premium Pro, VESA AdaptiveSync	G-Sync Compatible, FreeSync Premium Pro, VESA AdaptiveSync, HDMI VRR
Subpixel layout
Subpixel layout	Triangular RGB arrangement (TechSpot)	RGB stripe
Colour depth
Colour depth	1.07 billion colours	1.07 billion colours (10-bit)
sRGB coverage
sRGB coverage	149% sRGB (maker stated gamut)	–
Colour accuracy
Colour accuracy	Factory calibration to Delta E < 2	Delta E < 2 (average) (sRGB, DCI-P3)
Colour modes
Colour modes	–	Standard, Creator (DCI-P3 or sRGB), FPS, MOBA/RTS, RPG, Sports, three custom game modes
HDR detail
HDR detail	250 cd/m² typical SDR and 1,000 cd/m² peak in Dell's US specifications; the UK table lists only the peak under brightness	1300 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
Response time detail
Response time detail	Maker's 0.1ms figure is grey to grey	–
Viewing angles
Viewing angles	178° horizontal and vertical	178° horizontal, 178° vertical (typical)
Pixel pitch
Pixel pitch	0.23 mm	0.1776 mm x 0.1776 mm
Eye care
Eye care	ComfortView Plus low blue light; flicker-free technology	Flicker-free
Burn-in protection
Burn-in protection	Three-year maker warranty includes OLED burn-in	AI-based pixel usage algorithm, pixel refresh, pixel shift and panel health indicator; 3-year warranty includes burn-in
Connections
Video inputs
Video inputs	HDMI 2.0, 2 × DisplayPort 1.4	2 × HDMI 2.1, DisplayPort 2.1, USB-C
USB-C charging
USB-C charging	None	Up to 90 W (better)
USB ports
USB ports	4 × USB-A	USB-C, 2 × USB-A
KVM switch
KVM switch	–	Yes
Ethernet
Ethernet	–	No
Speakers
Speakers	No	No
HDMI detail
HDMI detail	1 x HDMI 2.0; up to 3440 x 1440 at 100Hz	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 detail
DisplayPort detail	2 x DisplayPort 1.4; up to 3440 x 1440 at 165Hz	1 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 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 hub detail	USB 3.2 Gen 1, 5Gbps; one upstream and four downstream ports; Dell's UK table lists two BC 1.2 charging ports, while its US page specifies one charging port at up to 2A	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	Picture in Picture and Picture by Picture	Picture by Picture and Picture in Picture
Audio out
Audio out	Line output and headphone output	3.5 mm headphone jack; HDMI eARC/ARC
Design
Stand adjusts
Stand adjusts	Height, tilt, swivel	Height, tilt, swivel
VESA mount
VESA mount	Yes	Yes
Weight with stand
Weight with stand	–	11.22 kg
Height adjustment
Height adjustment	110 mm	110 mm
Tilt
Tilt	-5° to 21°	-5° to 21°
Swivel
Swivel	-20° to 20°	-20° to 20°
VESA pattern
VESA pattern	100 x 100 mm	100 x 100 mm
Size with stand
Size with stand	815.25 x 305.71 x 415.57 mm (W x D x H, lowest position, Dell UK)	920.49 x 242.50 x 470.10–580.10 mm (W x D x H)
Size without stand
Size without stand	815.25 x 127.11 x 364.15 mm (W x D x H)	920.49 x 129.65 x 408.24 mm (W x D x H)
Weight without stand
Weight without stand	6.27 kg	7.76 kg
Controls
Controls	–	Joystick
Colours
Colours	Dark Side of the Moon	Nova Black
Power and support
Power use
Power use	34 W on mode; 200 W maximum; 0.5 W standby; 0.3 W off	40.3 W on mode, 0.5 W standby, 0.3 W off, 360 W maximum
Energy class
Energy class	G	G
Power supply
Power supply	100–240 VAC, 50/60Hz	100–240 VAC, 50/60 Hz, 4 A (typical)
Software
Software	–	Alienware Command Center
Warranty
Warranty	Three-year Advanced Exchange Service and Premium Panel Exchange, including OLED burn-in	3 years limited hardware with Advanced Exchange Service and Premium Panel Exchange, including burn-in (UK)
In the box
In the box	DisplayPort cable, USB-C-to-DisplayPort cable and USB upstream cable	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