LG UltraGear 27GX790B-B 27" Black 2025
The 4th Gen Primary RGB Tandem OLED panel hits 335 nits typical brightness and offers a unique Dual Mode, switching between 540Hz at QHD for detail or 720Hz at HD for pure speed. DisplayPort 2.1 provides the bandwidth for these extreme refresh rates, while the 0.02ms response time and UL Verified Perfect Black ensure sharp motion and deep contrast. This monitor is best for competitive esports players who need the flexibility to prioritize resolution or frame rate on a single display.
Screen 27"
Resolution 3440 x 1440
Panel OLED
Refresh 540 Hz
response time ms 0.029999999329447746
adaptive sync FreeSync Premium Pro
HDR DisplayHDR True Black 500
70 Overall Score
Price $664
Snapshot
Pros & Cons
Pros
- Strong performance (100th percentile) 100th
- Strong color (88th percentile) 88th
- Strong display (84th percentile) 84th
- Strong connectivity (82nd percentile) 82nd
Cons
The proof
Performance
Specifications
Full Specifications
Display
| Size | 27" |
| Resolution | 3440x1440 |
| Panel Type | OLED |
| Aspect Ratio | 16:9 |
| Screen Finish | matte |
Performance
| Refresh Rate | 540 Hz |
| Response Time | 0.03 |
| Adaptive Sync | FreeSync Premium Pro |
Color & HDR
| Brightness | 335 nits |
| Color Gamut | 99.5% DCI-P3 |
| Color Depth | 10-bit |
| HDR | DisplayHDR True Black 500 |
| HDR Support | HDR500 |
Connectivity
| HDMI Ports | 2 |
| DisplayPort | 1 |
| USB-C | 1 |
| Headphone Jack | Yes |
Ergonomics
| Height Adjustable | Yes |
| Tilt | Yes |
| Swivel | Yes |
| Pivot | Yes |
Features
| Weight | 6.8 kg / 15.0 lbs |
vs Competition
| Spec | LG UltraGear 27GX790B-B 27" | ASUS ROG Strix XG27UCDMG | Alienware AW-Series AW3425DW | Samsung Odyssey G60SD | MSI MPG 271QR QD-OLED X50 | Dell UltraSharp U4025QW |
|---|---|---|---|---|---|---|
| Screen Size | 27 | 27 | 34 | 27 | 27 | 39.70000076293945 |
| Resolution | 3440 x 1440 | 3840 x 2160 | 3440 x 1440 | 2560 x 1440 | 2560 x 1440 | 5120 x 2160 |
| Panel Type | OLED | OLED | QD-OLED | OLED | QD-OLED | IPS |
| Refresh Rate | 540 | 240 | 240 | 360 | 500 | 120 |
| Response Time Ms | 0.029999999329447746 | 0.029999999329447746 | 0.029999999329447746 | 0.029999999329447746 | 0.029999999329447746 | 5 |
| Adaptive Sync | FreeSync Premium Pro | FreeSync Premium Pro | FreeSync Premium Pro | FreeSync Premium Pro | G-Sync Compatible | Adaptive-Sync |
| Hdr | DisplayHDR True Black 500 | DisplayHDR True Black 400 | DisplayHDR 400 True Black | HDR10+ | DisplayHDR True Black 500 | DisplayHDR 600 |
| Compare | Compare | Compare | Compare | Compare |
| Product | Color | Portability | Display | Feature | Ergonomic | Performance | Connectivity | Social Proof |
|---|---|---|---|---|---|---|---|---|
| LG UltraGear 27GX790B-B 27" | 87.5 | 58.5 | 84 | 69 | 78.8 | 100 | 81.9 | 50.5 |
| ASUS ROG Strix XG27UCDMG Compare | 96.2 | 58.5 | 97.9 | 84.5 | 91 | 98 | 81.9 | 99.4 |
| Alienware AW-Series AW3425DW Compare | 99.1 | 74.4 | 86.3 | 90.3 | 91 | 98 | 95.6 | 98.2 |
| Samsung Odyssey G60SD Compare | 90.9 | 40.6 | 78.2 | 69 | 91 | 99.6 | 88 | 95.5 |
| MSI MPG 271QR QD-OLED X50 Compare | 99.2 | 58.5 | 78.2 | 84.5 | 91 | 99.9 | 63.7 | 99.4 |
| Dell UltraSharp U4025QW Compare | 97.9 | 77 | 98.7 | 96.1 | 91 | 56.5 | 99.3 | 95.5 |
Price
Value & Pricing
From $664
Amazon 1 offer From $664
Price History
Usage Scores
A full written review is coming soon. The specs, scores, prices and charts above are always up to date.
