Head-to-head · Best Ultrawide Monitors

MSI Optix MAG342CQR 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.

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The short answer

MSI Optix MAG342CQR comes out ahead by a narrow margin (4.5 vs 4.3). The gap is mostly about budget buyers seeking deep blacks and high contrast — read the strengths below before deciding.

Higher ratedRanked #1 in Best Ultrawide Monitors

MSI Optix MAG342CQR

4.5

4 sources$299as of Jul 1

At 34 inches and 3440x1440, the MSI Optix MAG342CQR is a budget curved ultrawide built for gaming, with a 144Hz refresh rate, 1ms response time, and the deep blacks a VA panel provides. Colors are vibrant and the image is sharp. HDR is limited by the absence of local dimming, and viewing angles show slight color shifts next to IPS alternatives.

Strengths

— Delivers deep, inky blacks with a 4,000:1 static contrast ratio typical of VA panels
— Offers a 144Hz refresh rate and 1ms response time for smooth, fluid gaming motion
— Provides a 3440x1440 resolution with 21:9 ultrawide format for immersive gaming and productivity

Watch-outs

— Lacks full-array local dimming (FALD), resulting in improper HDR performance
— Exhibits minor gamma and saturation shifts at certain viewing angles compared to IPS panels

$299 · 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

MSI Optix MAG342CQR

The MSI Optix MAG342CQR stands out by delivering deep, inky blacks via its VA panel, a significant advantage over the washed-out contrast of the IPS-based LG 34GN850-B and ASUS ROG Swift PG349Q. While it lacks the infinite contrast of the Dell Alienware AW3423DW and the extreme size of the Samsung Odyssey G9, it provides a cost-effective alternative that balances deep blacks with a 144Hz refresh rate for budget-conscious gamers.

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	MSI Optix MAG342CQR	Samsung Odyssey G9
Screen Size	34 inches	49 inches
Resolution	3440 x 1440	5120 x 1440
Panel Type	VA	VA
Refresh Rate	144 Hz	240Hz
Response Time	1 ms	1ms (GtG)
Curvature	1500R	1000R
Color Gamut	90% DCI-P3	95% DCI-P3
Adaptive Sync	AMD FreeSync Premium	AMD FreeSync Premium Pro

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