Head-to-head · Best Ultrawide Monitors

ASUS ROG Swift PG349Q vs Dell Alienware AW3423DW

Which is the better buy? Side-by-side on rating, price, strengths, and watch-outs — with the published ratings we averaged to get there.

The short answer

ASUS ROG Swift PG349Q comes out ahead by a narrow margin (4.5 vs 4.4). The gap is mostly about users needing native G-Sync and robust ergonomics on a budget — read the strengths below before deciding.

Higher ratedRanked #2 in Best Ultrawide Monitors

ASUS ROG Swift PG349Q

★★★★★4.5

$800

The ASUS ROG Swift PG349Q is a solid mid-range ultrawide gaming monitor that excels in color accuracy and offers native G-Sync support for smooth gameplay. While its 1900R curvature and ergonomic stand enhance the immersive experience, the display is held back by poor black uniformity and a lack of HDR capabilities. It serves well for both gaming and professional editing tasks, though its older connectivity options and modest brightness limit its premium appeal.

Strengths

— Image color accuracy remains consistent even when viewed at extreme angles
— Includes native Nvidia G-Sync support for smooth, tear-free gaming
— Ergonomic stand offers height, tilt, and swivel adjustments with a unique helix design

Watch-outs

— Suffers from poor black uniformity typical of IPS panels
— Lacks HDR support due to limited 300 nits brightness and 1000:1 contrast ratio
— Video connectivity is restricted to older DisplayPort 1.2 and HDMI 1.4 standards

$800 · Check Price on Amazon Full review →

Ranked #3 in Best Ultrawide Monitors

Dell Alienware AW3423DW

★★★★★4.4

$999

The Dell Alienware AW3423DW sets a new standard for gaming monitors with its stunning QD-OLED panel, offering perfect blacks, vibrant colors, and incredibly fast response times. While it excels in motion clarity and immersion, users must be mindful of potential burn-in risks and the absence of USB-C connectivity. It remains a top-tier choice for enthusiasts prioritizing visual fidelity over connectivity convenience.

Strengths

— Delivers perfect black levels and infinite contrast due to QD-OLED panel technology
— Features a 175Hz refresh rate with 0.1ms GtG response time for ultra-smooth gaming
— Offers a 3440x1440 resolution with a 21:9 aspect ratio and 1800R curvature

Watch-outs

— Lacks built-in USB-C connectivity with power delivery
— Susceptible to permanent image retention (burn-in) with static content over time

$999 · Check Price on Amazon Full review →

How they stack up

ASUS ROG Swift PG349Q

The ASUS ROG Swift PG349Q distinguishes itself with native G-Sync support and a unique ergonomic stand, offering a reliable experience that avoids the burn-in concerns of the Dell Alienware AW3423DW. However, it lags behind the LG 34GN850-B in modern connectivity and brightness, and it cannot compete with the deep contrast ratios found in the MSI Optix MAG342CQR or the Samsung Odyssey G9.

Dell Alienware AW3423DW

The Dell Alienware AW3423DW sets a new visual standard with its QD-OLED panel, delivering perfect blacks and infinite contrast that completely overshadow the washed-out IPS blacks of the LG 34GN850-B and the VA panel limitations of the MSI Optix MAG342CQR. Although it shares the 34-inch ultrawide form factor with the ASUS ROG Swift PG349Q, it offers superior motion clarity and HDR performance, provided the user can accept the burn-in risk that the LCD-based alternatives avoid.

Specs side-by-side

Spec	ASUS ROG Swift PG349Q	Dell Alienware AW3423DW
Screen Size	34 Inches	—
Resolution	3440 x 1440 UW-QHD	3440 x 1440
Panel Technology	In-Plane Switching (IPS)	—
Refresh Rate	120Hz	175Hz
Response Time	5ms	0.1ms GtG
Brightness	300 cd/m²	—
Contrast Ratio	1000:1	—
Curvature	1900R	—
Panel Type	—	QD-OLED
Aspect Ratio	—	21:9

← See the full ranking of best ultrawide monitors