LG UltraGear OLED Gaming Monitor (2025) – 26.5-inch QHD 540Hz / HD 720Hz Dual Mode / 0.02ms / DisplayPort 2.1 / USB-C – [27GX790B-B.AMA]

The LG UltraGear 27GX790B-B.AMA is a 26.5-inch OLED gaming monitor designed for high-refresh-rate PC gaming. It combines 2560 × 1440 QHD resolution at up to 540Hz with a Dual Mode setting that supports 1280 × 720 HD at up to 720Hz, along with a 0.02ms GTG response time.

Its fourth-generation Tandem OLED panel provides deep blacks, a 1,500,000:1 contrast ratio, DCI-P3 99.5% coverage and VESA DisplayHDR True Black 500 certification.

Key Specifications

• Brand: LG Electronics
• Series: UltraGear
• Display size: 26.5 inches
• Panel type: OLED, fourth-generation Tandem OLED
• Resolution: 2560 × 1440 QHD
• Aspect ratio: 16:9
• Refresh rate: Up to 540Hz at QHD; Dual Mode up to 720Hz at 1280 × 720 HD
• Response time: 0.02ms GTG
• Brightness: 335 cd/m² typical; 1,500 cd/m² peak at 1.5% APL
• Contrast ratio: 1,500,000:1
• Color gamut: DCI-P3 99.5% typical
• HDR: VESA DisplayHDR True Black 500 and HDR10
• Motion certification: VESA ClearMR 21000
• Adaptive sync: AMD FreeSync Premium Pro, NVIDIA G-SYNC Compatible and VESA Adaptive-Sync
• Video inputs: 1 × DisplayPort 2.1 and 2 × HDMI
• USB connectivity: USB Type-C with DisplayPort Alternate Mode and 2 × USB 3.0 downstream ports
• Audio: 4-pole headphone output and microphone input
• Ergonomics: 130mm height adjustment, tilt, swivel up to 30° left/right and 90° left pivot
• VESA mounting: 100 × 100mm
• Finish: Black

Highlights

• Dual Mode lets users prioritize detailed QHD gaming at 540Hz or ultra-high-refresh HD gaming at 720Hz.
• Tandem OLED technology delivers OLED contrast with deep blacks and a wide DCI-P3 color range.
• DisplayPort 2.1 provides high-bandwidth connectivity for high-resolution, high-refresh-rate gaming.
• 0.02ms GTG response time and VESA ClearMR 21000 support sharp motion in fast-paced games.
• FreeSync Premium Pro and G-SYNC compatibility help reduce tearing and stuttering with compatible graphics hardware.
• The adjustable stand supports height, tilt, swivel and pivot positioning for a more flexible gaming setup.

The LG UltraGear 27GX790B-B.AMA is a high-refresh OLED gaming monitor for competitive PC gaming, available for Oman shoppers searching for QHD 540Hz and 720Hz Dual Mode displays.