The Alienware AW3926QW is $700 cheaper than LG's 39GX950B

7items — Wed, 12 Aug 2026 00:00:00 +0000

The Alienware AW3926QW vs LG 39GX950B choice comes down to one subpixel. Both are 39-inch 5120x2160 tandem W-OLEDs at 165 Hz with the same 1500R curve, and LG Display builds both panels. Dell drops the white subpixel, adds a glossy finish, and plans to charge about $700 less in the US.

Key Takeaways

Same size, resolution, refresh rate, curve, and panel maker.
The only real difference is that LG keeps a white subpixel and Dell does not.
Text should look sharper on the Dell, because the LG’s extra white subpixel can soften thin letters.
LG claims more peak brightness, and Dell trades that for richer colour.
Dell adds a KVM, Dolby Vision, and a third year of warranty.

Alienware AW3926QW vs LG 39GX950B at a glance

Spec	Alienware AW3926QW	LG 39GX950B
Screen size	39 in, curved
Panel technology	4th-gen tandem W-OLED
Subpixel layout	RGB stripe	RGBW
Screen coating	Glossy, anti-reflective	Matte anti-glare
Resolution	5120 x 2160
Pixel pitch	0.1776 mm
Pixel density	143 PPI
Curvature	1500R
Curve depth	About 68 mm (derived)
Refresh rate	165 Hz
Dual mode	2560 x 1080 at 330 Hz
Response time	0.03 ms GtG
SDR brightness	300 nits	335 nits typical
HDR certification	DisplayHDR True Black 500
Peak brightness	1,300 nits	1,500 nits
Colour gamut	99.5% DCI-P3
Dolby Vision	Yes	No
Video inputs	DP 2.1, 2x HDMI 2.1, USB-C
USB-C power delivery	90 W
KVM	Yes	Not listed
Speakers	None listed	7 W x 2
Warranty	3 years, burn-in covered	2 years, burn-in covered
List price	About $1,099 expected	$1,799.99
Availability	Asia first, US and Europe later	Worldwide

LG Display makes both panels, so these are two variants of the same brief, and Dell took the one LG Electronics passed on.

Dell U4025QW vs LG 39GX950B-B on a Linux coding desk

7items — Mon, 03 Aug 2026 00:00:00 +0000

The Dell U4025QW vs LG 39GX950B-B choice is a dock or a gaming panel. Both show 5120x2160 on a 40-inch ultrawide, so desktop space ties. The gap nobody publishes as a number is the bend: the LG’s edges sit 68 mm forward of centre, the Dell’s only 43 mm. That 25 mm changes how the desk feels.

Key Takeaways

Both screens show the same 5120x2160, so desktop space is a tie.
The LG bends 68 mm out of flat, the Dell only 43 mm.
One Dell cable carries video, 140W charging, Ethernet, and a keyboard switch.
The LG hits 165Hz, but only a very new graphics card feeds it uncompressed.
The Dell costs less on the street and has no burn-in worry.

Dell U4025QW vs LG 39GX950B-B at a glance

Spec	Dell U4025QW	LG 39GX950B-B
Screen size	39.7 in	38.86 in
Panel	IPS Black	4th-gen Tandem WOLED
Resolution	5120x2160	5120x2160
Pixel density	140 PPI	142 PPI
Panel width	929.28 mm	~909 mm (derived)
Curvature	2500R	1500R
Curve depth	43 mm	68 mm
Refresh rate	120Hz	165Hz
Response time	5 ms (fast mode)	0.03 ms GtG
SDR brightness	450 nits	335 nits (uniform)
HDR	DisplayHDR 600	DisplayHDR True Black 500
Contrast	2000:1	Effectively infinite
Colour gamut	99% DCI-P3	99.5% DCI-P3
Video inputs	Thunderbolt 4, DP 1.4, HDMI 2.1	DP 2.1, 2x HDMI 2.1, USB-C
USB-C power	140 W	90 W
Ethernet	2.5 GbE	None
KVM	Yes	No
Speakers	Yes	Yes
Warranty	3 years	2 years
List price	$2,399.99	$1,799.99
Street price	~$1,700	~$1,800

The pixel density row is closer than it looks. 140 and 142 PPI are the same to the eye, so the text argument moves onto subpixel layout rather than sharpness. PCWorld’s review measured the Dell at 138 PPI in practice, which nobody will spot next to 142.

Hardware - Category - 7items

The Alienware AW3926QW is $700 cheaper than LG's 39GX950B

Key Takeaways

Alienware AW3926QW vs LG 39GX950B at a glance

Dell U4025QW vs LG 39GX950B-B on a Linux coding desk

Key Takeaways

Dell U4025QW vs LG 39GX950B-B at a glance