GIGABYTE M28U 28" 4K 144Hz KVM Gaming Monitor vs Acer Nitro XV275K P5 27" 4K Mini-LED Dual-Mode Gaming Monitor
The GIGABYTE M28U 28" 4K 144Hz KVM Gaming Monitor edges out the Acer Nitro XV275K P5 27" 4K Mini-LED Dual-Mode Gaming Monitor, especially for gamers. With a refresh rate of 144Hz, it delivers smooth gameplay, while the Acer offers a unique dual mode of 160Hz at 4K and 320Hz at 1080p, which is impressive for fast-paced titles. The GIGABYTE wins in overall gaming performance with its HDMI 2.1 ports that support 4K @ 120Hz for next-gen consoles like the PS5. So, what does this mean for you? If you're primarily gaming, the GIGABYTE is the smarter buy, but the Acer’s versatility is hard to ignore for multi-use scenarios.
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GIGABYTE M28U 28" 4K 144Hz KVM Gaming Monitor

Only the specs that differ are shown here. Winners are highlighted when the data is clear.
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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 Acer Nitro XV275K P5 27" 4K Mini-LED Dual-Mode Gaming Monitor

GIGABYTE M28U 28" 4K 144Hz KVM Gaming Monitor

Acer Nitro XV275K P5 27" 4K Mini-LED Dual-Mode Gaming Monitor
| Criterion | GIGABYTE M28U 28" 4K 144Hz KVM Gaming Monitor | Acer Nitro XV275K P5 27" 4K Mini-LED Dual-Mode Gaming Monitor |
|---|---|---|
| Rating | ★4.4(271)Best Buy | ★3.8(32)Amazon |
Screen Size | 28" Viewable (28" Class) | 27" (68.6 cm) |
Resolution | 3840 x 2160 (4K UHD) | 3840 x 2160 (4K UHD) |
Aspect Ratio | 16:9 | 16:9 |
Screen Type | SS IPS (Super Speed IPS) | IPS (Mini-LED backlight) |
Refresh Rate | 144 Hz (PC) / 120 Hz (Console via HDMI 2.1) | 160 Hz (4K); 320 Hz (1080p via DFR Dual Mode) |
Response Time | 1 ms (GtG) / 2 ms (MPRT) | 1 ms (GtG) |
Brightness | 300 nits (Typical) | 600 cd/m² (Typical); 1000 cd/m² (HDR Peak) |
Contrast | 1,000:1 (Typical) | 1,000:1 (Native); 100,000,000:1 (ACM Dynamic) |
Color Gamut | 94% DCI-P3 / 120% sRGB | 99% AdobeRGB; 95% DCI-P3 |
Color Depth | 8-bit | 10-bit (8-bit + FRC) |
HDR | VESA DisplayHDR 400 | VESA DisplayHDR 1000 (HDR10) |
Adaptive Sync | AMD FreeSync Premium Pro | AMD FreeSync Premium |
Viewing Angles | 178° (H) / 178° (V) | 178° (H) / 178° (V) |
Curvature | Flat | No (Flat panel) |
Speakers | 2x 3 W (Stereo) | Yes (2x 3W) |
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 | 2x HDMI 2.1; 1x DisplayPort 1.4; 1x USB-C (DP Alt Mode, 90W PD); 2x USB-A 3.0 (Downstream); 1x USB-B (Upstream); 1x 3.5mm Audio Out |
USB C | Yes (Video + Data + 15W Power Delivery) | Yes (DP Alt Mode, Data, 90W Power Delivery) |
Kvm | Yes (Built-in) | Yes (Built-in KVM switch) |
Vesa | 100 x 100 mm | 75 x 75 mm |
Ergonomics | Height (130mm), Tilt (-5° to 20°); No Swivel or Pivot | Tilt (-5° to 25°); Swivel (±25°); Height adj. (150 mm); Pivot (±90°) |
Power Consumption | 40.5 W (Typical) / 115 W (Max) / 0.5 W (Standby) | 35 W (Standard); 230 W (Max with USB-C charging) |
Weight With Stand | 6,930 g (15.28 lbs) | 6,720 g (14.82 lbs) |
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GIGABYTE M28U 28" 4K 144Hz KVM Gaming Monitor
✓ 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
- • Super Speed IPS panel delivers low 1ms response time with wide viewing angles
- • Excellent pixel density (157 PPI) results in extremely sharp text and images
- • Reasonably priced entry point for high-refresh 4K gaming
✗ 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)
- • Stand lacks Swivel and Pivot adjustments
- • Contrast is average for IPS (1,000:1), meaning blacks look gray in dark rooms
- • HDR performance is minimal (DisplayHDR 400) with no local dimming
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Acer Nitro XV275K P5 27" 4K Mini-LED Dual-Mode Gaming Monitor
✓ Pros:
- • Innovative Dual Mode: Switch between high-res 4K 160Hz or ultra-fast 1080p 320Hz
- • Mini-LED backlight with 576 local dimming zones delivers deep blacks and high brightness
- • Full-featured USB-C hub with 90W Power Delivery and built-in KVM switch
- • Excellent color accuracy covering 99% AdobeRGB, suitable for content creation
- • Fully adjustable ergonomic stand with portrait mode (pivot) support
✗ Cons:
- • OSD menu navigation can be clunky compared to competitors
- • Local dimming (576 zones) may show slight blooming compared to higher-tier 1000+ zone panels
- • Stand has a wide footprint, requiring significant desk depth
- • Viewing angles, while good, are slightly narrower than standard IPS due to the Mini-LED layer
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Which one is better?
The GIGABYTE M28U 28" 4K 144Hz KVM Gaming Monitor is the better buy for most people - its 144Hz refresh rate crushes the Acer’s 160Hz/320Hz when it comes to 4K gaming.
Who should buy each?
Choose the GIGABYTE M28U 28" 4K 144Hz KVM Gaming Monitor if: you prioritize high-refresh 4K gaming, want HDMI 2.1 support for next-gen consoles, or need a built-in KVM switch for multiple devices.
Choose the Acer Nitro XV275K P5 27" 4K Mini-LED Dual-Mode Gaming Monitor if: you need a versatile display for both high-res gaming and fast-paced titles, require 90W USB-C charging, or prefer a fully adjustable ergonomic stand.
Conclusion
With the key differences outlined, the decision should be clearer. Both options deliver quality—choose the one that fits your priorities.
Frequently Asked Questions
+Which has better value?
GIGABYTE M28U 28" 4K 144Hz KVM Gaming Monitor excels if you value hdmi 2.1 ports support 4k @ 120hz for ps5 and xbox series x (utilizing dsc or chroma subsampling due to 24gbps bandwidth). Acer Nitro XV275K P5 27" 4K Mini-LED Dual-Mode Gaming Monitor is better if you prioritize innovative dual mode: switch between high-res 4k 160hz or ultra-fast 1080p 320hz. Pick based on your budget and daily use.
+Is this an independent review?
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+Do newer models exist?
Check release timelines from the manufacturers and compare pricing before you buy. We refresh this page when major updates land.
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