LG UltraGear LG 45" 240 Hz OLED QHD Gaming Monitor 0.03ms (GtG Review

This $2999 45-inch OLED gaming monitor is a speed and color champion, scoring in the 90th+ percentile for both. Its 240Hz and near-zero response time make it incredibly smooth, and the OLED contrast is infinite. The downside? The WQHD resolution looks a bit soft on such a big screen, and it's very expensive.

The LG UltraGear 45GX90SA-B is a massive 45-inch curved OLED gaming monitor that throws down some serious numbers. It's got a 3440x1440 resolution, a blistering 240Hz refresh rate, and a near-instantaneous 0.03ms gray-to-gray response time. That combination lands it in the 82nd percentile for performance in our database, making it a top-tier choice for chasing frames.

But the real story here is the OLED panel. It delivers a 98.5% DCI-P3 color gamut and a 1,500,000:1 contrast ratio, which puts its color and display quality in the 91st and 90th percentile respectively. This isn't just a fast monitor, it's a gorgeous one. The catch? You're paying $2999 for it, and that 3440x1440 resolution stretched across 45 inches means the pixel density isn't as sharp as a 4K panel.

This thing is fast. The 240Hz refresh rate paired with OLED's inherent speed makes motion look incredibly clean. In our tests, its performance score sits well above average, meaning it's a standout for competitive gaming and fast-paced titles. The 0.03ms GtG response time is basically as good as it gets, eliminating ghosting and smearing entirely.

For color, it's one of the best on the market. That 98.5% DCI-P3 coverage ensures vibrant, accurate hues, and the infinite contrast of OLED (thanks to that 1.5 million ratio spec) makes HDR content pop with deep blacks and bright highlights. It's not the brightest panel at 275 nits, but the contrast handles that trade-off beautifully.

At $2999, the value proposition is straightforward: you're paying for premium OLED speed and size. It's not a value pick. You're getting a monitor that scores in the top 10-20% for color, display, ergonomics, and performance, but you're paying a price that reflects that. If your budget is tight, there are excellent high-refresh-rate IPS or even other OLED options at lower prices and smaller sizes. This is for the buyer who wants the biggest, fastest OLED ultrawide and isn't counting pennies.

Compared to the 4K 240Hz ASUS ROG Swift 27", you're trading pixel sharpness for immense screen real estate. The ASUS will look crisper for text and detail, but the LG's 45-inch curve is more immersive. Against the MSI MPG 322URX QD-OLED, you're comparing a 32-inch 4K QD-OLED panel to this 45-inch WQHD one. The MSI likely has better brightness and pixel density, but again, the LG wins on sheer size. The Samsung Odyssey Neo G9 is a different beast with a dual 4K setup, but it's a VA panel, so the LG's OLED contrast and response times are objectively superior. The LG UltraGear 45" with dual mode is a closer sibling, offering a 4K mode, but at a lower refresh rate.

Skip this if you're a pixel-peeper or do a lot of text-based work. The 82 PPI (pixels per inch) on this 45-inch WQHD panel is well below the ~110 PPI of a 27-inch 4K monitor, so text and fine details won't look as sharp. Also, if your budget is under $2000, there are fantastic 27-inch or 32-inch 240Hz OLEDs that deliver similar performance and better pixel density for less money. This monitor is for those who prioritize immersive size over ultimate sharpness.

If you have the space, the budget, and a craving for both speed and stunning image quality, this LG UltraGear is a fantastic, data-backed choice. Its scores in color, display, and performance are all leading. But if you're sensitive to pixel density for reading text or need a brighter HDR experience, the lower PPI and 275-nit brightness are real trade-offs. For pure gaming immersion on an OLED, it's a winner, but it's not the best all-around monitor.