GIGABYTE M28U 28" 4K 144Hz KVM Gaming Monitor vs Samsung Odyssey OLED G9 49" Curved Gaming Monitor
The GIGABYTE M28U 28" 4K 144Hz KVM Gaming Monitor is the more affordable option, but its 28-inch display packs 4K resolution, making it a reliable pick for gamers who want sharp visuals. In contrast, the Samsung Odyssey OLED G9 49" Curved Gaming Monitor offers a massive 49-inch screen with an impressive 240Hz refresh rate, ideal for immersive gaming experiences in 2026. What matters most here is the display technology and size. The GIGABYTE M28U provides a flat 28" screen with decent brightness at 300 nits, while the Odyssey OLED G9 boasts a curved 49" screen with superior color depth and contrast, reaching up to 1,000,000:1. This means deeper blacks and vibrant colors, elevating your gaming and viewing experience significantly. Key specs: Display: 28" vs 49" and Refresh: 144 Hz vs 240 Hz.
Why compare these? The GIGABYTE M28U 28" 4K 144Hz KVM Gaming Monitor (mid-range) and Samsung Odyssey OLED G9 49" Curved Gaming Monitor (premium flagship) represent different approaches to monitors. While they may appeal to different budgets, many buyers consider both options. This 2026 comparison helps you decide if the differences justify the price gap.
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Key Differences at a Glance
| Aspect | GIGABYTE M28U | Samsung Odyssey |
|---|---|---|
| User Rating | 4.3★ (627 reviews) | 4.3★ (1,127 reviews) |
| Top Strength | HDMI 2.1 ports support 4K @ 120Hz for PS5 and Xbox Series X (utilizing DSC or chroma subsampling due to 24Gbps bandwidth) | Massive 32:9 aspect ratio replaces a dual 27-inch monitor setup with no bezel gap |
| Main Drawback | USB-C power delivery is limited to 15W/18W, which is insufficient to charge most laptops | Standard Samsung warranty in the US does NOT explicitly cover OLED burn-in |
| Market Position | Mid-range | ✓Flagship |
GIGABYTE M28U 28" 4K 144Hz KVM Gaming Monitor
28" Viewable (28" Class)
3840 x 2160 (4K UHD)
16:9
SS IPS (Super Speed IPS)
Samsung Odyssey OLED G9 49" Curved Gaming Monitor
49" Viewable (49" Class)
5120 x 1440 (Dual QHD)
32:9
QD-OLED (Quantum Dot OLED)
Only the specs that differ are shown here. Winners are highlighted when the data is clear.
+Full specs, pros, and cons
Everything side-by-side with ratings and the full spec list.
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Full specs, pros, and cons
Everything side-by-side with ratings and the full spec list.
Comparison: GIGABYTE M28U 28" 4K 144Hz KVM Gaming Monitor vs Samsung Odyssey OLED G9 49" Curved Gaming Monitor
GIGABYTE M28U 28" 4K 144Hz KVM Gaming Monitor
Samsung Odyssey OLED G9 49" Curved Gaming Monitor
| Criterion | GIGABYTE M28U 28" 4K 144Hz KVM Gaming Monitor | Samsung Odyssey OLED G9 49" Curved Gaming Monitor |
|---|---|---|
| Rating | ★4.3(627)Amazon | ★4.3(1,127)Best Buy |
Screen Size | 28" Viewable (28" Class) | 49" Viewable (49" Class) |
Resolution | 3840 x 2160 (4K UHD) | 5120 x 1440 (Dual QHD) |
Aspect Ratio | 16:9 | 32:9 |
Screen Type | SS IPS (Super Speed IPS) | QD-OLED (Quantum Dot OLED) |
Refresh Rate | 144 Hz (PC) / 120 Hz (Console via HDMI 2.1) | 240 Hz |
Response Time | 1 ms (GtG) / 2 ms (MPRT) | 0.03 ms (GtG) |
Brightness | 300 nits (Typical) | 250 nits (Typical) / 1,000 nits (Peak HDR 3% Window) |
Contrast | 1,000:1 (Typical) | 1,000,000:1 (Static) |
Color Gamut | 94% DCI-P3 / 120% sRGB | 99% DCI-P3 (CIE1976) |
Color Depth | 8-bit | 1.07 Billion (10-bit) |
HDR | VESA DisplayHDR 400 | VESA DisplayHDR True Black 400 / HDR10+ Gaming |
Adaptive Sync | AMD FreeSync Premium Pro | AMD FreeSync Premium Pro / VESA Adaptive-Sync |
Viewing Angles | 178° (H) / 178° (V) | 178° (H) / 178° (V) |
Curvature | Flat | 1800R |
Speakers | 2x 3 W (Stereo) | 2x 5 W (Stereo) |
Ports | 2x HDMI 2.1; 1x DisplayPort 1.4 (DSC); 1x USB-C (DP Alt Mode, Data, 15W PD); 3x USB 3.0 Downstream; 1x USB-B Upstream; 1x 3.5mm Headphone Out | 1x DisplayPort 1.4; 1x HDMI 2.1; 1x Micro HDMI 2.1; 3x USB 3.0 Hub |
USB C | Yes (Video + Data + 15W Power Delivery) | No |
Kvm | Yes (Built-in) | No |
Vesa | 100 x 100 mm | 100 x 100 mm |
Ergonomics | Height (130mm), Tilt (-5° to 20°); No Swivel or Pivot | Height (120mm), Tilt (-2° to 15°); No Swivel or Pivot |
Power Consumption | 40.5 W (Typical) / 115 W (Max) / 0.5 W (Standby) | 75 W (Typical) / 220 W (Max) / 0.5 W (Standby) |
Weight With Stand | 6,930 g (15.28 lbs) | 12,900 g (28.4 lbs) |
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GIGABYTE M28U 28" 4K 144Hz KVM Gaming Monitor
28" Viewable (28" Class)
3840 x 2160 (4K UHD)
16:9
SS IPS (Super Speed IPS)
144 Hz (PC) / 120 Hz (Console via HDMI 2.1)
1 ms (GtG) / 2 ms (MPRT)
Pros
- HDMI 2.1 ports support 4K @ 120Hz for PS5 and Xbox Series X (utilizing DSC or chroma subsampling due to 24Gbps bandwidth)
- Built-in KVM switch allows controlling two devices (e.g., PC and Laptop) with one keyboard/mouse
Cons
- USB-C power delivery is limited to 15W/18W, which is insufficient to charge most laptops
- HDMI 2.1 bandwidth is capped at 24Gbps (relies on DSC for full 4K 144Hz 4:4:4)
Samsung Odyssey OLED G9 49" Curved Gaming Monitor
49" Viewable (49" Class)
5120 x 1440 (Dual QHD)
32:9
QD-OLED (Quantum Dot OLED)
240 Hz
0.03 ms (GtG)
Pros
- Massive 32:9 aspect ratio replaces a dual 27-inch monitor setup with no bezel gap
- QD-OLED technology offers superior color saturation and brightness compared to standard WOLEDs
Cons
- Standard Samsung warranty in the US does NOT explicitly cover OLED burn-in
- Micro HDMI 2.1 port requires a specialized cable or adapter (not always included)
Which one is better?
The Samsung Odyssey OLED G9 49" Curved Gaming Monitor is the better buy for most people - its stunning 240Hz refresh rate crushes the GIGABYTE M28U.
Who should buy each?
Choose the GIGABYTE M28U 28" 4K 144Hz KVM Gaming Monitor if: you want a sharp 4K display for gaming, need USB-C support for devices, or prefer a smaller footprint for your desk.
Choose the Samsung Odyssey OLED G9 49" Curved Gaming Monitor if: you crave an ultra-wide gaming experience, love vibrant colors for media consumption, or want the fastest refresh rate for competitive gaming. (49" display, 240 Hz refresh)
Safe Choice Buyers
More widely tested with 1,127 reviews vs 627
→ Choose Samsung Odyssey
Premium Buyers
Higher-tier option with more premium features and build quality
→ Choose Samsung Odyssey
Value Seekers
Better value proposition for buyers who don't need top-tier features
→ Choose GIGABYTE M28U
HDMI 2.1 ports Priority
HDMI 2.1 ports support 4K @ 120Hz for PS5 and Xbox Series X (utilizing DSC or chroma subsampling due to 24Gbps bandwidth)
→ Choose GIGABYTE M28U
Conclusion
We hope this comparison helps you buy with confidence. Both products are dependable; the right one depends on how you will use it.
Bottom line: Both products share a 4.3★ rating, making this comparison particularly close. Your decision should come down to which specific features matter most to you.
Frequently Asked Questions
+Which is better: GIGABYTE M28U 28" 4K 144Hz KVM Gaming Monitor or Samsung Odyssey OLED G9 49" Curved Gaming Monitor?
GIGABYTE M28U 28" 4K 144Hz KVM Gaming Monitor is the better choice if you prioritize hdmi 2.1 ports support 4k @ 120hz for ps5 and xbox series x (utilizing dsc or chroma subsampling due to 24gbps bandwidth). Samsung Odyssey OLED G9 49" Curved Gaming Monitor wins if you value massive 32:9 aspect ratio replaces a dual 27-inch monitor setup with no bezel gap. Both are rated highly (4.3★ vs 4.3★), so consider your specific needs and budget.
+What are the main differences between GIGABYTE M28U 28" 4K 144Hz KVM Gaming Monitor and Samsung Odyssey OLED G9 49" Curved Gaming Monitor?
Key differences: GIGABYTE M28U 28" 4K 144Hz KVM Gaming Monitor offers hdmi 2.1 ports support 4k @ 120hz for ps5 and xbox series x (utilizing dsc or chroma subsampling due to 24gbps bandwidth), while Samsung Odyssey OLED G9 49" Curved Gaming Monitor stands out with massive 32:9 aspect ratio replaces a dual 27-inch monitor setup with no bezel gap. Consider that GIGABYTE M28U 28" 4K 144Hz KVM Gaming Monitor usb-c power delivery is limited to 15w/18w, which is insufficient to charge most laptops. Meanwhile, Samsung Odyssey OLED G9 49" Curved Gaming Monitor standard samsung warranty in the us does not explicitly cover oled burn-in. Check the detailed specs table above for a complete comparison.
+Where can US buyers get the best price?
For US buyers, Amazon typically offers competitive pricing with Prime shipping, easy returns, and reliable warranty support. We recommend comparing prices on both products using our affiliate links above—prices fluctuate regularly, and you may find sales or deals.
+Is this comparison up to date?
Yes, this comparison is current for 2026. We regularly verify specs, ratings, and availability. Last verified: January 26, 2026. PageBen uses affiliate links for monetization, but our recommendations are research-driven and independent.
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