LG Ultragear 27GX790A-B 27 Inch QHD 480Hz OLED Panel 100%SRGB 0.03MS Nvidia GSync Gaming Monitor

The LG UltraGear 27GX790A-B is a 27-inch QHD OLED gaming monitor engineered for competitive and immersive gaming alike. Its OLED panel delivers a native 2560×1440 resolution across a 26.5-inch viewable area, paired with a 480Hz refresh rate and a 0.03ms response time — attributes that make fast-moving content appear exceptionally smooth and sharp. The panel achieves a 1,500,000:1 contrast ratio through OLED's self-emissive pixel technology, rendering deep blacks alongside vivid highlights without the blooming associated with edge-lit displays. Color reproduction is handled by a True 10-bit panel covering 98.5% of the DCI-P3 colour space, 100% sRGB, and 89.7% of Adobe RGB. HDR is supported via HDR10 and DisplayHDR True Black 400, meaning peak brightness reaches 1,200 nits in HDR highlights while the typical brightness sits at 275 nits. This combination of deep blacks and high peak brightness makes HDR content appear particularly impactful on this panel type. For variable refresh rate support, the monitor carries both AMD FreeSync Premium Pro certification and NVIDIA G-Sync Compatible validation, ensuring smooth, tear-free frame delivery with a wide range of graphics cards. Connectivity is future-focused, with a DisplayPort 2.1 input capable of driving the full 480Hz at QHD, complemented by two HDMI 2.1 ports. USB 3.0 hub functionality is present via one upstream USB-B and two downstream USB-A ports. A 3.5mm audio output accommodates headsets, and DTS Headphone:X spatial audio processing is supported through the 4-pole jack. Ergonomics are comprehensive: the stand supports height adjustment, tilt, swivel, and 90-degree pivot rotation. VESA mounting is compatible at the standard 100×100mm pattern. An anti-glare surface treatment reduces ambient light reflections. RGB hexagonal backlighting on the rear of the stand provides aesthetic customisation. LG's OLED Care suite — including pixel cleaning routines — is built in to maintain panel longevity. The monitor ships with an HDMI cable, a DisplayPort cable, and a USB-A to USB-B cable. Manufactured in South Korea, the 27GX790A-B is backed by LG's 2-year limited manufacturer warranty covering the OLED panel. — Verified Specifications — Model: LG 27GX790A-B | Series: UltraGear | Panel: OLED | Screen Size: 27" (26.5" viewable) | Resolution: QHD 2560×1440 | Refresh Rate: 480Hz | Response Time: 0.03ms | Brightness: 275 nits typical / 1,200 nits peak | Contrast Ratio: 1,500,000:1 | Colour Depth: True 10-bit | Colour Gamut: 98.5% DCI-P3 / 100% sRGB / 89.7% Adobe RGB | HDR: HDR10, DisplayHDR True Black 400 | Sync: AMD FreeSync Premium Pro, NVIDIA G-Sync Compatible | Connectivity: 2× HDMI 2.1, 1× DisplayPort 2.1, 2× USB-A, 1× USB-B, 1× 3.5mm audio | Ergonomics: Height / Tilt / Swivel / Pivot / VESA 100×100mm | Weight: 9.29 kg (without stand) | Warranty: 2 Years Manufacturer | Origin: South Korea