LG 27GL83A-B 27" UltraGear QHD IPS Monitor vs Acer Nitro XV275K P5 27" 4K Mini-LED Dual-Mode Gaming Monitor
The LG 27GL83A-B 27" UltraGear QHD IPS Monitor is the mid-range option that shines for competitive gaming, boasting a rapid 144Hz refresh rate and a crisp 2560 x 1440 resolution. In contrast, if you're looking to save money without sacrificing quality, the Acer Nitro XV275K P5 27" 4K Mini-LED Dual-Mode Gaming Monitor offers a stunning 3840 x 2160 resolution, ideal for immersive experiences in 2026. What matters most here is the refresh rate: 144Hz on the LG is perfect for fast-paced FPS games, while Acer's 320Hz in 1080p mode provides an ultra-smooth experience. However, the Acer's 600 nits brightness will make HDR content pop, giving you a rich visual experience in bright settings. Both monitors have their strengths, so knowing your priorities will help you decide which fits your needs best.
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LG 27GL83A-B 27" UltraGear QHD IPS 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: LG 27GL83A-B 27" UltraGear QHD IPS Monitor vs Acer Nitro XV275K P5 27" 4K Mini-LED Dual-Mode Gaming Monitor
LG 27GL83A-B 27" UltraGear QHD IPS Monitor
Acer Nitro XV275K P5 27" 4K Mini-LED Dual-Mode Gaming Monitor
| Criterion | LG 27GL83A-B 27" UltraGear QHD IPS Monitor | Acer Nitro XV275K P5 27" 4K Mini-LED Dual-Mode Gaming Monitor |
|---|---|---|
| Rating | ★4.5(13,197)Amazon | ★3.8(32)Amazon |
Screen Size | 27" Viewable (27" Class) | 27" (68.6 cm) |
Resolution | 2560 x 1440 (QHD) | 3840 x 2160 (4K UHD) |
Aspect Ratio | 16:9 | 16:9 |
Screen Type | IPS (In-Plane Switching) | IPS (Mini-LED backlight) |
Refresh Rate | 144 Hz | 160 Hz (4K); 320 Hz (1080p via DFR Dual Mode) |
Response Time | 1 ms (GtG) | 1 ms (GtG) |
Brightness | 350 nits (Typical) / 280 nits (Min) | 600 cd/m² (Typical); 1000 cd/m² (HDR Peak) |
Contrast | 1,000:1 (Typical) / 700:1 (Min) | 1,000:1 (Native); 100,000,000:1 (ACM Dynamic) |
Color Gamut | 99% sRGB | 99% AdobeRGB; 95% DCI-P3 |
Color Depth | 1.07 Billion (10-bit / 8-bit + FRC) | 10-bit (8-bit + FRC) |
HDR | HDR10 (Software support only) | VESA DisplayHDR 1000 (HDR10) |
Adaptive Sync | NVIDIA G-SYNC Compatible / AMD FreeSync Premium | 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 | 1x DisplayPort 1.4; 2x HDMI 2.0; 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 | No | Yes (DP Alt Mode, Data, 90W Power Delivery) |
Kvm | No | Yes (Built-in KVM switch) |
Vesa | 100 x 100 mm | 75 x 75 mm |
Ergonomics | Height (110mm), Pivot (90°), Tilt (-5° to 15°); No Swivel | Tilt (-5° to 25°); Swivel (±25°); Height adj. (150 mm); Pivot (±90°) |
Power Consumption | 51 W (Typical) / 65 W (Max) / 0.5 W (Sleep) | 35 W (Standard); 230 W (Max with USB-C charging) |
Weight With Stand | 6,100 g (13.5 lbs) | 6,720 g (14.82 lbs) |
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LG 27GL83A-B 27" UltraGear QHD IPS Monitor
✓ Pros:
- • Ideal 27-inch QHD sweet spot delivers sharper text and details than 1080p
- • Fast 1ms IPS panel eliminates motion blur while maintaining vibrant 99% sRGB colors
- • Fully certified 'G-SYNC Compatible' for tear-free gaming on NVIDIA GPUs
- • Ergonomic stand supports portrait mode (Pivot) and height adjustment
- • Excellent motion clarity at 144Hz makes it a top choice for competitive FPS gaming
✗ Cons:
- • Contrast ratio is mediocre (IPS glow is visible in dark rooms; blacks appear gray)
- • Lacks a USB hub and built-in speakers (features found on the pricier '850' model)
- • HDR performance is poor due to low brightness and lack of local dimming
- • Stand lacks swivel adjustment
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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 LG 27GL83A-B 27" UltraGear QHD IPS Monitor is the better buy for most people - its 144Hz refresh rate crushes the Acer's 320Hz mode for serious gaming.
Who should buy each?
Choose the LG 27GL83A-B 27" UltraGear QHD IPS Monitor if: you play competitive FPS games needing a 144Hz refresh, prefer vivid color accuracy with 99% sRGB, or value tear-free gaming with G-SYNC support.
Choose the Acer Nitro XV275K P5 27" 4K Mini-LED Dual-Mode Gaming Monitor if: you want stunning 4K resolution for content creation, need a USB-C hub with 90W Power Delivery, or enjoy HDR content at 600 nits brightness.
Conclusion
We hope this comparison helps you buy with confidence. Both products are dependable; the right one depends on how you will use it.
Frequently Asked Questions
+Which has better value?
LG 27GL83A-B 27" UltraGear QHD IPS Monitor excels if you value ideal 27-inch qhd sweet spot delivers sharper text and details than 1080p. 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.
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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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