%20800R%20Display,%20240Hz%20Refresh%20Rate,%200.03ms%20(GtG)%20Response%20Time,%20AMD%20FreeSync%20Premium,%20VESA%20AdaptiveSync,%20HDR10,%20DCI-P3%2098.5%25%20Color,%20Black%2045GX90SA-B?unique=b696543)
%20800R%20Display,%20240Hz%20Refresh%20Rate,%200.03ms%20(GtG)%20Response%20Time,%20AMD%20FreeSync%20Premium,%20VESA%20AdaptiveSync,%20HDR10,%20DCI-P3%2098.5%25%20Color,%20Black%2045GX90SA-B?unique=b696543)
LG UltraGear 45GX90SA GX9 45-Inch Curved OLED Gaming Monitor – WQHD (3440x1440) 800R Display, 240Hz Refresh Rate, 0.03ms (GtG) Response Time, AMD FreeSync Premium, VESA AdaptiveSync, HDR10, DCI-P3 98.5% Color, Black 45GX90SA-B
| Brand | LG |
| Color | Black |
| Screen Size | 34 to 48.9 Inch |
| Refresh Rate | 240 Hz |
| Adaptive Sync | FreeSync Premium |
| Response Time | 0.01 to 0.1 ms |
Documents
Internal Reference:
45GX90SA
Product Description
LG UltraGear OLED GX9 Curved Gaming Monitor | 45GX90SA-B.AMA
UltraGear™ OLED GX9 – The Future of Immersive Gaming
Step into a new era of gaming immersion with the LG UltraGear OLED GX9, featuring a massive 45-inch 21:9 WQHD (3440 × 1440) curved OLED display with an 800R curvature. The self-lit OLED panel delivers perfect blacks, ultra-fast response, and brilliant HDR performance with up to 1300 nits peak brightness under HDR 1.5% APL.
Experience unrivaled speed and smoothness with a 240Hz refresh rate and an astonishing 0.03ms (GtG) response time — making every motion ultra-fluid and precise.
The GX9 also integrates AMD FreeSync™ Premium, NVIDIA® G-SYNC® compatibility, and VESA AdaptiveSync certification for stutter-free gameplay.
Powered by webOS 24, the GX9 doubles as a Smart Monitor, allowing you to stream, multitask, or control smart home devices without a PC. Connectivity options include HDMI 2.1, DisplayPort 1.4, USB-C (65W PD), and LAN, complemented by Wi-Fi and Bluetooth for wireless convenience.
Housed in a sleek UltraGear design with Hexagon RGB lighting, the GX9 also offers full ergonomic adjustment — tilt, height, and swivel — for the ultimate comfort and control.
Key Features
45” UltraWide OLED Curved Display (800R) – WQHD (3440×1440) with self-lit pixels for infinite contrast.
240Hz Refresh Rate & 0.03ms Response Time – Lightning-fast gameplay with zero motion blur.
VESA DisplayHDR™ True Black 400 – Deep blacks, high contrast, and lifelike HDR visuals.
AMD FreeSync™ Premium & G-SYNC® Compatible – Seamless, tear-free performance.
Smart Monitor with webOS 24 – Stream, browse, and control smart home devices without a PC.
USB-C 65W Power Delivery & LAN Connectivity – Simplified multitasking and device charging.
Ergonomic Stand – Tilt, height, and swivel adjustments for personalized comfort.
Hexagon RGB Lighting – Dynamic gaming atmosphere with customizable colors.
Specifications
| Category | Details |
| Display | |
| Screen Size | 44.5" (21:9) |
| Panel Type | OLED |
| Native Resolution | WQHD (3440 × 1440) |
| Refresh Rate | 240Hz |
| Response Time | 0.03ms (GtG) |
| Brightness (Typ./Min.) | 275 / 250 cd/m² |
| Peak Brightness (HDR) | 1300 cd/m² (@ HDR 1.5% APL) |
| Contrast Ratio | 1,500,000:1 |
| Color Gamut | DCI-P3 98.5% (CIE1976) |
| VESA DisplayHDR™ | True Black 400 |
| VESA DSC | Yes |
| Curvature | 800R |
| Surface Treatment | Anti-Glare, Low-Reflection |
| Features | |
| RGB Lighting | Hexagon Lighting |
| HDR10 / HDR Effect | Yes / Yes |
| AMD FreeSync™ | Premium |
| NVIDIA G-SYNC™ | Compatible |
| VESA AdaptiveSync | Yes |
| Auto Brightness | Yes |
| Black Stabilizer®, Crosshair®, Dynamic Action Sync® | Yes |
| FPS Counter | Yes |
| Factory Calibration | Yes |
| Reader Mode | Yes |
| Smart Energy Saving | Yes |
| True Color Pro | Yes |
| User Defined Key | Yes |
| PBP / PIP | Yes / Yes |
| Smart Monitor (webOS 24) | |
| OS | webOS 24 |
| Voice Recognition | Yes (with Magic Remote, sold separately) |
| Screen Share | Yes |
| Wi-Fi / Bluetooth | Yes / Yes |
| USB Media Player | Yes |
| Remote Desktop | Yes |
| Home Hub / LG ThinQ | Yes / Yes |
| AirPlay | Yes |
| Web Browser | Yes |
| Connectivity | |
| HDMI | 2 × HDMI 2.1 |
| DisplayPort | 1 × DP 1.4 (HDCP 2.3) |
| USB-C | 1 × (3440×1440@240Hz, Data, PD 65W) |
| USB Downstream | 2 × USB 2.0 |
| USB Upstream | 1 × USB-C |
| Headphone Out | 3-Pole |
| LAN (RJ-45) | Yes |
| Power | |
| Type | External Adapter |
| Input | 100–240V (50/60Hz) |
| Power Consumption (Typ.) | 92W |
| Sleep Mode | <0.5W |
| Design & Ergonomics | |
| Stand Adjustments | Tilt / Height (120mm) / Swivel |
| Mount | 100 × 100 mm |
| Detachable Base | Yes |
| One Click Setup | Yes |
| RGB Lighting | Hexagon Design |
| Dimensions & Weight | |
| With Stand (W×H×D) | 39.1" × 26.1" × 13.3" (Up) / 39.1" × 21.3" × 13.3" (Down) |
| Without Stand (W×H×D) | 39.1" × 18" × 8.6" |
| Shipping (W×H×D) | 45" × 11.9" × 21.7" |
| Weight (With/Without Stand) | 29.8 lbs / 19.6 lbs |
| Shipping Weight | 41.7 lbs |
| Included Accessories | |
| USB-C Cable | Yes |
| HDMI Cable | Yes |
| DisplayPort Cable | Yes |
| Remote Control | Yes |
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