Looking for an honest MSI MPG 491CQPS QD-OLED 49" DQHD Curved vs Samsung Odyssey OLED G9 G91SD comparison in 2026? We scored both gaming monitors on the same six-dimension framework — performance, battery, display, camera, design and value — using identical methodology, so the numbers below are directly comparable. Both products score nearly identically (55/100 vs 58/100) — this is a genuine toss-up that hinges on which specs matter most for your use case. The widest gap is in battery life, where the MSI MPG 491CQPS QD-OLED 49" DQHD Curved pulls noticeably ahead. On price the Samsung Odyssey OLED G9 G91SD undercuts the MSI MPG 491CQPS QD-OLED 49" DQHD Curved by 59% ($410 vs $649.99), which materially changes the value calculus for budget-conscious buyers.
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MSI MPG 491CQPS QD-OLED 49" DQHD Curved and Samsung Odyssey OLED G9 G91SD are closely matched gaming monitors devices with nearly identical overall scores (55 vs 58). The best choice depends on which specific features matter most to you.
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| Spec | MSI MPG 491CQPS QD-OLED 49" DQHD Curved | Samsung Odyssey OLED G9 G91SD |
|---|---|---|
| Screen Size | 49" | 49" |
| Panel Type | QD-OLED | OLED |
| Resolution | 5120x1440 | 5120x1440 |
| Refresh Rate | 144Hz | 144Hz |
| Response Time | 0.03ms | 1ms✓ |
| Brightness | 400nits |
Buy MSI MPG 491CQPS QD-OLED 49" DQHD Curved if…
The MSI MPG 491CQPS QD-OLED 49" DQHD Curved is worth considering if you prefer its specific design, ecosystem, or brand — though it scores lower overall in our comparison.
Buy Samsung Odyssey OLED G9 G91SD if…
Choose the Samsung Odyssey OLED G9 G91SD if budget is your top priority — it offers competitive specs at a lower price point.
MSI MPG 491CQPS QD-OLED 49" DQHD Curved and Samsung Odyssey OLED G9 G91SD are closely matched gaming monitors devices with nearly identical overall scores (55 vs 58). The best choice depends on which specific features matter most to you.
Both products score similarly — it depends on your priorities.
Samsung Odyssey OLED G9 G91SD is cheaper at $410 vs $649.99 for the MSI MPG 491CQPS QD-OLED 49" DQHD Curved.
The MSI MPG 491CQPS QD-OLED 49" DQHD Curved is worth considering if you prefer its specific design, ecosystem, or brand — though it scores lower overall in our comparison.
Choose the Samsung Odyssey OLED G9 G91SD if budget is your top priority — it offers competitive specs at a lower price point.
Reviewed by VersusMatrix Editorial Team
Last updated: May 21, 2026
Methodology: AI-powered analysis of technical specifications from manufacturer data. Scores are calculated by comparing products across multiple dimensions and normalized relative to the full category database. Our editorial process is independent and not influenced by affiliate partnerships.
Scores are relative within the gaming monitorscategory. Percentages show each dimension's weight in the overall score. A difference of less than 0.5 points is considered a tie.
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| Ports | 2x HDMI 2.1, 1x DisplayPort 1.4 | HDMI 2.1, DisplayPort 1.4 |
| Price | 649.99$ | 410$✓ |