LG UltraGear 27G640A-B 27" Black 2026
LG
87 Overall Score
vs
ASUS ROG Strix XG259CS 24.5" Black 2025
ASUS
66 Overall Score
Scores
Office
Professional
Gaming
Creative
Entertainment
Portable
Specifications
| LG UltraGear 27G640A-B 27" | ASUS ROG Strix XG259CS 24.5" | |
|---|---|---|
| Display | ||
| Size | 27" | 24.5" |
| Resolution | 2560 x 1440 | 1920 x 1080 |
| Panel Type | IPS | IPS |
| Aspect Ratio | 16:9 | 16:9 |
| Curved | ✗ | ✗ |
| Performance | ||
| Refresh Rate | 300 Hz★ | 180 Hz |
| Response Time | 1 ms | 1 ms |
| Adaptive Sync | FreeSync Premium | G-Sync Compatible★ |
| Color & HDR | ||
| Brightness | 400 nits | 400 nits |
| Color Gamut | DCI P3 95% (CIE1976) | DCI-P3: 95%, sRGB: 130% |
| Color Depth | 10-bit★ | 8-bit |
| HDR | HDR10 | DisplayHDR 400 |
| HDR Support | HDR10 | HDR10 |
| Connectivity | ||
| HDMI Ports | 2★ | 1 |
| DisplayPort | 1 | 1 |
| USB-C | 1 | 1 |
| Speakers | ✓★ | ✗ |
| Headphone Jack | ✓ | ✓ |
| Ergonomics | ||
| Height Adjustable | ✓ | ✓ |
| Tilt | ✓ | ✓ |
| Swivel | ✓ | ✓ |
| Pivot | ✓ | ✓ |
| VESA Mount | 100x100 | 100x100 |
| Features | ||
| Webcam | ✗ | ✗ |
| Touchscreen | ✗ | — |
| PIP/PBP | ✗ | — |
| Power | 45W | 20W★ |
| Weight | 5.49 kg★ | 5.90 kg |
Pros & Cons
LG UltraGear 27G640A-B 27" Black 2026
- Strong performance (91st percentile)91st %ile
- Strong ergonomic (91st percentile)91st %ile
- Strong color (88th percentile)88th %ile
- Strong connectivity (88th percentile)88th %ile
ASUS ROG Strix XG259CS 24.5" Black 2025
- Strong ergonomic (91st percentile)91st %ile
- Strong color (88th percentile)88th %ile
- Strong performance (83rd percentile)83rd %ile
- Strong portability (80th percentile)80th %ile
Verdict
Winner: LG UltraGear 27G640A-B 27"
Scores 87 overall, wins 6 of 6 usage categories and 5 of 28 specs.