LG GX9 45" OLED Review – Best 5K2K Gaming Monitor?

 LG UltraGear OLED GX9 Gaming Monitor (45GX950A-B)

The #ad LG UltraGear OLED GX9, officially known as the 45GX950A-B, is one of those rare gaming monitors that instantly feels like it belongs in a high-end setup. With its enormous 45-inch curved WOLED panel, blisteringly fast refresh capabilities and a suite of next-gen connectivity options, it’s designed with serious players and visual-fidelity enthusiasts in mind. After spending time with it, it’s clear that LG set out to deliver a premium, flagship-class experience—and for the most part, it succeeds brilliantly.

The display itself is the star of the show. The 45-inch 5K2K (5120×2160) resolution creates an ultra-wide canvas that feels incredibly immersive, especially in open-world or racing titles. The curvature helps draw your eyes into the action without feeling overly aggressive, and the WOLED panel really elevates the experience. Blacks are genuinely inky, colours appear vibrant without tipping into oversaturation, and contrast levels look superb. It’s the sort of display that makes even everyday desktop use feel more engaging.

Performance is equally impressive. LG’s dual-mode refresh rate lets you choose between a detailed 165Hz setting at the full resolution or switch to a blistering 330Hz mode for competitive gaming. Pair that with a 0.03ms response time and you’ve got a monitor that feels incredibly responsive, whether you’re flicking around in shooters or gliding through fast-paced racing titles. Motion clarity is outstanding, with almost no noticeable blur. FreeSync Premium Pro support helps keep everything smooth, reducing the chance of tearing or stutter even during frantic moments.

Brightness, often a weak point for OLED panels, is handled surprisingly well here. The GX9 manages a typical brightness around 275 nits but can hit peaks of up to 1300 nits in the right circumstances. While it won’t challenge the very brightest HDR monitors, it still delivers a punchy HDR experience, with highlights that pop beautifully against the deep black background. HDR400 certification reflects its capability, though HDR enthusiasts may crave something a little more substantial. Still, for gaming, it’s more than satisfying.

The monitor’s connectivity options are refreshingly comprehensive. You get DisplayPort 2.1, HDMI 2.1 and USB-C, which means PC, next-gen consoles and laptops are all well catered for. USB-C support, complete with power delivery, is particularly handy for creators or anyone who wants a clean, single-cable setup for work and play. The inclusion of built-in speakers is a nice touch, and while they won’t replace a proper sound system, they’re perfectly serviceable for general use.

Design-wise, the GX9 maintains the sleek, minimalist look that UltraGear displays have gravitated toward in recent years. The stand is stable and functional, though its footprint is fairly large—something to consider if your desk space is limited. Cable management is decent, and the matte black finish fits neatly into most gaming environments. As with many large ultra-wide monitors, you’ll need to ensure you’ve got the room for it, but once it’s in place, it certainly looks the part.

The biggest drawbacks come down to practicalities rather than performance. OLED burn-in remains a theoretical concern, though LG’s mitigation features are much improved. And given the monitor’s premium positioning, the price tag will inevitably give some buyers pause. But for those who want cutting-edge performance, it’s arguably justified.

Overall, the #ad LG UltraGear OLED GX9 is a stunning gaming monitor that delivers exceptional picture quality, superb responsiveness and genuinely immersive gameplay. It’s a flagship product through and through, and while not cheap, it offers a level of performance and visual fidelity that few monitors in its class can match. If you’ve got the space—and the budget—it’s an absolute powerhouse.

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