KOORUI 24E3 165Hz Gaming Monitor vs Acer Nitro XV275K P5 27" 4K Mini-LED Dual-Mode Gaming Monitor
Get the Acer Nitro XV275K P5 27" 4K Mini-LED Dual-Mode Gaming Monitor if you want a stunning 27" 4K display and a refresh rate of 160Hz. The KOORUI 24E3 165Hz Gaming Monitor is the budget option here, but its 165Hz refresh rate excels in competitive gaming scenarios. In real-world use, the Acer's Mini-LED technology offers a brightness of 600 nits, making HDR content pop with deep blacks and vibrant colors. Meanwhile, the KOORUI's 165Hz refresh rate provides ultra-smooth gameplay, though it sacrifices some screen real estate at just 24 inches.
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KOORUI 24E3 165Hz 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: KOORUI 24E3 165Hz Gaming Monitor vs Acer Nitro XV275K P5 27" 4K Mini-LED Dual-Mode Gaming Monitor

KOORUI 24E3 165Hz Gaming Monitor

Acer Nitro XV275K P5 27" 4K Mini-LED Dual-Mode Gaming Monitor
| Criterion | KOORUI 24E3 165Hz Gaming Monitor | Acer Nitro XV275K P5 27" 4K Mini-LED Dual-Mode Gaming Monitor |
|---|---|---|
| Rating | ★4.3(3,500)Amazon | ★3.8(32)Amazon |
Screen Size | 23.8" Viewable (24" Class) | 27" (68.6 cm) |
Resolution | 1920 x 1080 (FHD) | 3840 x 2160 (4K UHD) |
Aspect Ratio | 16:9 | 16:9 |
Screen Type | IPS (Fast IPS) | IPS (Mini-LED backlight) |
Refresh Rate | 165 Hz (via DisplayPort) / 144 Hz (via HDMI) | 160 Hz (4K); 320 Hz (1080p via DFR Dual Mode) |
Response Time | 1 ms (GtG) | 1 ms (GtG) |
Brightness | 250 nits (Typical) | 600 cd/m² (Typical); 1000 cd/m² (HDR Peak) |
Contrast | 1,000:1 (Static) / 20,000,000:1 (Dynamic) | 1,000:1 (Native); 100,000,000:1 (ACM Dynamic) |
Color Gamut | 99% sRGB / 72% NTSC | 99% AdobeRGB; 95% DCI-P3 |
Color Depth | 16.7M (8-bit) | 10-bit (8-bit + FRC) |
HDR | No (Not supported) | VESA DisplayHDR 1000 (HDR10) |
Adaptive Sync | AMD FreeSync (G-Sync Compatible) | AMD FreeSync Premium |
Viewing Angles | 178° (H) / 178° (V) | 178° (H) / 178° (V) |
Curvature | Flat | No (Flat panel) |
Speakers | No (None) | Yes (2x 3W) |
Ports | 2x HDMI 1.4; 1x DisplayPort 1.2; 1x 3.5mm Audio 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 | No | Yes (DP Alt Mode, Data, 90W Power Delivery) |
Kvm | No | Yes (Built-in KVM switch) |
Vesa | 75 x 75 mm | 75 x 75 mm |
Ergonomics | Tilt only (-5° to 20°) | Tilt (-5° to 25°); Swivel (±25°); Height adj. (150 mm); Pivot (±90°) |
Power Consumption | 30 W (Max) / 0.5 W (Standby) | 35 W (Standard); 230 W (Max with USB-C charging) |
Weight With Stand | 3,060 g (6.75 lbs) | 6,720 g (14.82 lbs) |
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KOORUI 24E3 165Hz Gaming Monitor
✓ Pros:
- • True Fast IPS panel delivers 1ms response times with vibrant 99% sRGB colors
- • High 165Hz refresh rate (via DisplayPort) for competitive esports gaming
- • Supports AMD FreeSync Premium to eliminate screen tearing
- • Includes both DisplayPort and two HDMI ports for connecting multiple devices
- • VESA 75x75mm mountable, allowing for aftermarket arm upgrades
✗ Cons:
- • Stand ergonomics are poor (Tilt only; no height adjustment)
- • HDMI ports are limited to 144Hz (must use DisplayPort for full 165Hz)
- • No built-in speakers
- • Controls are basic and the OSD menu can be clunky to navigate
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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 Acer Nitro XV275K P5 27" 4K Mini-LED Dual-Mode Gaming Monitor is the better buy for most people - its stunning 27" 4K resolution crushes the KOORUI's FHD display. That said, grab the KOORUI if you're on a budget and need a competitive edge with 165Hz refresh.
Who should buy each?
Choose the KOORUI 24E3 165Hz Gaming Monitor if: you want a budget-friendly gaming monitor, prioritize fast response times for esports, or lack desk space for a larger screen. (23.8" display, 165 Hz refresh)
Choose the Acer Nitro XV275K P5 27" 4K Mini-LED Dual-Mode Gaming Monitor if: you crave stunning visuals for gaming and content creation, need a versatile monitor for both 4K and 1080p gaming, or value adjustable ergonomics for comfort.
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?
KOORUI 24E3 165Hz Gaming Monitor excels if you value true fast ips panel delivers 1ms response times with vibrant 99% srgb colors. 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?
Yes. We use affiliate links for monetization, but recommendations are research-driven and unbiased.
+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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