LG 27GL83A-B 27" UltraGear QHD IPS Monitor vs LG DualUp 28MQ780-B 27.6" 16:18 Ergo Monitor
Get the LG 27GL83A-B 27" UltraGear QHD IPS Monitor if you want a gaming powerhouse. Its 144Hz refresh rate crushes the LG DualUp 28MQ780-B 27.6" 16:18 Ergo Monitor's 60Hz, delivering the smooth gameplay you crave. In real-world use, the LG 27GL83A-B's 1ms response time ensures zero motion blur, perfect for competitive gaming. Meanwhile, the DualUp's unique aspect ratio offers vertical workspace, but it sacrifices refresh rate, making it less ideal for fast-paced action. You’d want the UltraGear for intense gaming sessions, while the DualUp shines for multitasking and creative work in 2026.
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LG 27GL83A-B 27" UltraGear QHD IPS Monitor

LG DualUp 28MQ780-B 27.6" 16:18 Ergo Monitor
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: LG 27GL83A-B 27" UltraGear QHD IPS Monitor vs LG DualUp 28MQ780-B 27.6" 16:18 Ergo Monitor

LG 27GL83A-B 27" UltraGear QHD IPS Monitor

LG DualUp 28MQ780-B 27.6" 16:18 Ergo Monitor
| Criterion | LG 27GL83A-B 27" UltraGear QHD IPS Monitor | LG DualUp 28MQ780-B 27.6" 16:18 Ergo Monitor |
|---|---|---|
| Rating | ★4.5(13,197)Amazon | ★4.7(36)Best Buy |
Screen Size | 27" Viewable (27" Class) | 27.6" Viewable (28" Class) |
Resolution | 2560 x 1440 (QHD) | 2560 x 2880 (SDQHD) |
Aspect Ratio | 16:9 | 16:18 |
Screen Type | IPS (In-Plane Switching) | Nano IPS |
Refresh Rate | 144 Hz | 60 Hz |
Response Time | 1 ms (GtG) | 5 ms (GtG) |
Brightness | 350 nits (Typical) / 280 nits (Min) | 300 nits (Typical) |
Contrast | 1,000:1 (Typical) / 700:1 (Min) | 1,000:1 (Typical) |
Color Gamut | 99% sRGB | 98% DCI-P3 (CIE1976) |
Color Depth | 1.07 Billion (10-bit / 8-bit + FRC) | 1.07 Billion (10-bit) |
HDR | HDR10 (Software support only) | HDR10 |
Adaptive Sync | NVIDIA G-SYNC Compatible / AMD FreeSync Premium | No (Not supported) |
Viewing Angles | 178° (H) / 178° (V) | 178° (H) / 178° (V) |
Curvature | Flat | Flat |
Speakers | No (None) | 2x 7 W (Stereo with MaxxAudio) |
Ports | 1x DisplayPort 1.4; 2x HDMI 2.0; 1x 3.5mm Headphone Out | 2x HDMI 2.0; 1x DisplayPort 1.4; 1x USB-C (90W PD, Data, Video); 2x USB-A 3.0 Downstream; 1x USB-B 2.0 Upstream; 1x 3.5mm Headphone Out |
USB C | No | Yes (90W Power Delivery + Video + Data) |
Kvm | No | Yes (Built-in Auto KVM & PBP) |
Vesa | 100 x 100 mm | 100 x 100 mm |
Ergonomics | Height (110mm), Pivot (90°), Tilt (-5° to 15°); No Swivel | Ergo Stand (C-Clamp/Grommet): Extend/Retract (210mm), Swivel (±335°), Pivot (90° CCW), Height (130mm), Tilt (±25°) |
Power Consumption | 51 W (Typical) / 65 W (Max) / 0.5 W (Sleep) | 40 W (Typical) / 190 W (Max) / 0.5 W (Sleep) |
Weight With Stand | 6,100 g (13.5 lbs) | 9,000 g (19.8 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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LG DualUp 28MQ780-B 27.6" 16:18 Ergo Monitor
✓ Pros:
- • Unique 16:18 aspect ratio provides the vertical workspace of two 21.5-inch monitors without the bezel gap
- • Nano IPS panel covers 98% DCI-P3, offering professional-grade color accuracy for creators
- • Included Ergo Stand allows for extreme flexibility and frees up desk space (C-Clamp mount)
- • USB-C connectivity delivers up to 90W charging, handling powerful MacBook Pros and Windows laptops
- • Built-in KVM and Picture-by-Picture (PBP) allow you to view and control two computers simultaneously
✗ Cons:
- • Strictly limited to 60Hz with no VRR, making it poor for gaming
- • Unconventional aspect ratio (2560x2880) may require scaling tweaks in macOS/Windows
- • Setup is heavy and requires a sturdy desk edge for the C-Clamp
- • Upstream USB-B port is limited to USB 2.0 speeds (though USB-C supports 3.0)
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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 DualUp's 60Hz. That said, grab the LG DualUp 28MQ780-B if you need extra vertical screen space for productivity - it's heavier but offers unique features for creators.
Who should buy each?
Choose the LG 27GL83A-B 27" UltraGear QHD IPS Monitor if: you play fast-paced games, need a responsive display for esports, or want vibrant color accuracy. (27" display, 144 Hz refresh)
Choose the LG DualUp 28MQ780-B 27.6" 16:18 Ergo Monitor if: you work with multiple applications, need a unique vertical setup, or require USB-C connectivity for your devices. (27.6" display, 60 Hz refresh)
Conclusion
LG 27GL83A-B 27" UltraGear QHD IPS Monitor and LG DualUp 28MQ780-B 27.6" 16:18 Ergo Monitor are both solid choices. Match the strengths above to your budget and workflow to make the best call.
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. LG DualUp 28MQ780-B 27.6" 16:18 Ergo Monitor is better if you prioritize unique 16:18 aspect ratio provides the vertical workspace of two 21.5-inch monitors without the bezel gap. 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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