Head-to-head · Best Ultrawide Monitors

Dell Alienware AW3423DW vs Samsung Odyssey G9

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

Verdict is reader-supported. As an Amazon Associate we earn from qualifying purchases. Some links on this page are affiliate links — if you click through and buy, we may earn a small commission at no extra cost to you. Our ratings are sourced from independent publications, not sponsors.

The short answer

Dell Alienware AW3423DW comes out ahead by a narrow margin (4.4 vs 4.3). The gap is mostly about visual fidelity enthusiasts willing to manage burn-in risks — read the strengths below before deciding.

Higher ratedRanked #3 in Best Ultrawide Monitors

Dell Alienware AW3423DW

4.4

6 sources$1,059.95as of Aug 1

The QD-OLED panel in the Dell Alienware AW3423DW is why it reset expectations for gaming monitors: perfect blacks, vibrant colors, and response times that are genuinely fast. Motion clarity and immersion are its strengths. Buyers do need to weigh burn-in risk and the absence of USB-C connectivity. For enthusiasts who rank visual fidelity above connectivity convenience, it remains top-tier.

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

$1,059.95 · Check Price on Amazon Full review →

Ranked #5 in Best Ultrawide Monitors

Samsung Odyssey G9

4.3

7 sources$1,999as of Aug 1

A 49-inch 1000R curved screen running at 240Hz makes the Samsung Odyssey G9 about as immersive as a monitor gets, which is why sim racing and flight sim enthusiasts gravitate to it. Its enormous size demands a dedicated setup, and the premium price limits it to the most committed gamers with the budget and the desk space to match.

Strengths

— Massive 49-inch 32:9 curved display creates an incredibly immersive gaming experience
— Ultra-fast 240Hz refresh rate ensures smooth motion with minimal blur
— 1000R curvature matches the natural field of view for deep immersion

Watch-outs

— Extremely large footprint requires a very deep desk and significant wall space
— High price point makes it inaccessible for most budget-conscious gamers

$1,999 · Check Price on Amazon Full review →

How they stack up

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.

Samsung Odyssey G9

The Samsung Odyssey G9 dominates the list with its massive 49-inch 32:9 format and 240Hz refresh rate, offering an immersion level that the 34-inch models like the LG 34GN850-B and Dell Alienware AW3423DW simply cannot match. However, its enormous physical size and premium cost make it impractical for buyers who would be better served by the more compact and affordable MSI Optix MAG342CQR or the standard ultrawide form factor of the ASUS ROG Swift PG349Q.

Specs side-by-side

Spec	Dell Alienware AW3423DW	Samsung Odyssey G9
Screen Size	34 inches	49 inches
Resolution	3440 x 1440	5120 x 1440
Panel Type	QD-OLED	VA
Refresh Rate	175Hz	240Hz
Response Time	0.1ms GtG	1ms (GtG)
Curvature	1800R	1000R
Color Gamut	95% DCI-P3	95% DCI-P3
Adaptive Sync	AMD FreeSync Premium Pro	AMD FreeSync Premium Pro

← See the full ranking of best ultrawide monitors