LG UltraGear 27GX790B-B 27" Black 2025
LG's 4th Gen Primary RGB Tandem OLED panel delivers 335 nits typical brightness and a dual-mode hotkey that toggles between QHD at 540Hz and HD at 720Hz with a 0.02ms response time. UL Verified Perfect Black and VESA DisplayHDR True Black 500 ensure precise shadow detail, while DisplayPort 2.1 and USB-C connectivity support clean, high-bandwidth setups. This monitor is best for competitive gamers who demand top-tier motion clarity and the flexibility to switch resolution and refresh rate mid-match.
Snapshot
Pros & Cons
Pros
- Strong color (98th percentile) 98th
- Strong performance (98th percentile) 98th
- Strong display (83th percentile) 83th
- Strong connectivity (82th percentile) 82th
Cons
What owners think
How owner sentiment changed over time
ExclusiveBased on when customers actually wrote their reviews - so you can see whether early praise held up.
Based on 1 dated customer reviews, grouped by calendar quarter. Period analysis is in English.
The proof
Performance
Specifications
Full Specifications
Display
| Size | 27" |
| Resolution | QHD |
| Panel Type | OLED |
| Aspect Ratio | 16:9 |
Performance
| Refresh Rate | 240 Hz |
| Response Time | 0.03 |
| Adaptive Sync | G-Sync Compatible |
Color & HDR
| Brightness | 600 nits |
| Color Gamut | 99% DCI-P3 |
| Color Depth | 10-bit |
| HDR | DisplayHDR 600 |
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 XG27AQDMG | Samsung Odyssey Neo G8 LS32BG852NNXGO | MSI MPG 491CQP | Alienware AW-Series AW3425DW | Dell UltraSharp U3425WE |
|---|---|---|---|---|---|---|
| Screen Size | 27 | 26.5 | 32 | 49 | 34 | 34.13999938964844 |
| Resolution | QHD | 2560 x 1440 | 3840 x 2160 | 5120x1440 | 3440x1440 | 3440x1440 |
| Panel Type | OLED | OLED | VA | QD-OLED | QD-OLED | IPS |
| Refresh Rate | 240 | 240 | 240 | 144 | 240 | 120 |
| Response Time Ms | 0.029999999329447746 | 0.029999999329447746 | 1 | 0.30000001192092896 | 0.029999999329447746 | 5 |
| Adaptive Sync | G-Sync Compatible | FreeSync Premium Pro | FreeSync Premium Pro | Adaptive-Sync | FreeSync Premium Pro | G-Sync Compatible |
| Hdr | DisplayHDR 600 | HDR10 | Quantum HDR 2000 | Advanced HDR | DisplayHDR 400 True Black | DisplayHDR 400 |
| Compare | Compare | Compare | Compare | Compare |
| Product | Color | Compact | Display | Feature | Ergonomic | Performance | Connectivity | Social Proof |
|---|---|---|---|---|---|---|---|---|
| LG UltraGear 27GX790B-B 27" | 97.9 | 63.9 | 82.5 | 71.9 | 77.4 | 97.9 | 81.9 | 52.9 |
| ASUS ROG Strix XG27AQDMG Compare | 96.4 | 74.1 | 75.6 | 71.9 | 90.3 | 97.9 | 93.1 | 85.9 |
| Samsung Odyssey Neo G8 LS32BG852NNXGO Compare | 93.2 | 32 | 92.2 | 97.3 | 90.3 | 87.3 | 87.6 | 78.1 |
| MSI MPG 491CQP Compare | 81.2 | 55.1 | 97.9 | 97.3 | 90.3 | 93.5 | 81.9 | 90.7 |
| Alienware AW-Series AW3425DW Compare | 98.3 | 80 | 85.3 | 91.6 | 90.3 | 97.9 | 95.3 | 95.5 |
| Dell UltraSharp U3425WE Compare | 86.3 | 87 | 80.8 | 97.3 | 90.3 | 55.8 | 99.8 | 85.9 |
Price
Value & Pricing
Amazon.com.mx 1 offers From MX$18,516
Usage Scores
A full written review is coming soon. The specs, scores, prices and charts above are always up to date.
