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- ProArt PA278CGRV vs UltraFine 27US550
Asus ProArt PA278CGRV vs LG UltraFine 27US550
What ProArt PA278CGRV does better (5) and where UltraFine 27US550 wins (2) — every spec side by side.
vs
5.5Screen5.4
3.9Colour accuracy3.3
7.2Design & ergonomics6.8
Why is ProArt PA278CGRV better than UltraFine 27US550?
- Refresh rate144 Hz vs 60 Hz2.4×
- DisplayPort inputs2 vs 12×
- Brightness (typical)350 nits vs 300 nits+17%
- DCI-P3 coverage97% vs 90%+8%
- Contrast ratio (static)1,500:1 vs 1,000:1+50%
Why is UltraFine 27US550 better than ProArt PA278CGRV?
- Pixel density109 ppi vs 163 ppi+50%
- HDMI inputs1 vs 22×
Specifications
Side by side
| Display | ||
| Screen size | 27″ | 27″ |
| Resolution | 2560 × 1440 | 3840 × 2160 |
| Resolution class | QHD / 2.5K | 4K UHD |
| Pixel density | 109 ppi | 163 ppi |
| Aspect ratio | 16:9 | 16:9 |
| Panel type | IPS | IPS |
| Refresh rate | 144 Hz | 60 Hz |
| Brightness (typical) | 350 nits | 300 nits |
| Peak brightness (HDR) | 400 nits | — |
| Contrast ratio (static) | 1,500:1 | 1,000:1 |
| Response time | 5 ms | 5 ms |
| Anti-glare / matte screen | Yes | Yes |
| Colour | ||
| sRGB coverage | 100% | — |
| DCI-P3 coverage | 97% | 90% |
| Colour accuracy (ΔE, claimed) | ΔE 2 | — |
| Colour depth | 10 bit | 10 bit |
| HDR | HDR10 | HDR10 |
| Connectivity | ||
| USB-C video input (one cable) | Yes | — |
| USB-C charging (Power Delivery) | 96 W | — |
| KVM switch | Yes | — |
| HDMI inputs | 1 | 2 |
| DisplayPort inputs | 2 | 1 |
| USB hub | Yes | — |
| Built-in speakers | Yes | — |
| Built-in webcam | — | Yes |
| Design & ergonomics | ||
| Height adjustment | 130 mm | — |
| Pivot (portrait rotation) | Yes | Yes |
| Swivel | Yes | Yes |
| VESA mount | 100 × 100 mm | 100 × 100 mm |
| Weight | 6.6 kg | — |
| Width | 612 mm | — |
| Height | 536 mm | — |
| Depth | 190 mm | — |
| Product line | ASUS ProArt | LG UltraFine |
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