LG 27GX790AB 26.5" Black 2025

The LG 27GX790AB is a 26.5-inch 1440p OLED gaming monitor with a 480Hz refresh rate and 0.03ms response time, making it the fastest display in our database. It's built for competitive esports players who prioritize motion clarity above everything else. Casual gamers and productivity users will find better value in a 240Hz OLED or a larger 4K panel.

This is where the 27GX790AB absolutely flexes. Our database puts it in the 100th percentile for performance among all monitors we track. That's not a typo. A 480Hz refresh rate paired with a 0.03ms response time means motion clarity that makes 240Hz panels look like they're wading through molasses. In practice, fast-paced shooters feel immediate. Tracking targets in Apex Legends or Valorant is noticeably smoother, and the reduction in motion blur is the kind of thing you feel more than describe.

The 2560 x 1440 resolution is the sweet spot for this refresh rate. Pushing 480 frames per second at 4K is still a pipe dream for most GPUs, but 1440p is achievable with a high-end card and sensible settings. The monitor supports both FreeSync Premium Pro and G-Sync, so tear-free gaming is on the table regardless of whether you're team red or team green. There's even an FPS counter built into the OSD, which is either handy or a constant reminder that your GPU is the bottleneck now.

The most direct comparison is the ASUS ROG Strix XG27UCDMG. ASUS goes for 4K resolution at a lower refresh rate, which makes it a better pick if you split time between gaming and content creation. The LG is unapologetically a gaming monitor first. The MSI MAG 271QPX QD-OLED E2 uses a QD-OLED panel that typically delivers punchier colors and higher peak brightness than LG's WOLED approach, though the LG counters with that monstrous 480Hz refresh rate.

The Samsung Odyssey G60SD is another 1440p OLED option worth considering. Samsung's panels tend to have excellent color volume, and their gaming features are competitive. But none of these alternatives touch 480Hz. That's the LG's entire identity. If you want the fastest panel money can buy right now, the comparison ends quickly. If you want a more balanced monitor that's still great for gaming, the field opens up considerably.

Without a confirmed price, we can't give you a definitive value verdict. But context matters here. The ASUS ROG Strix XG27UCDMG and MSI MAG 271QPX QD-OLED E2 both offer 1440p OLED gaming at lower refresh rates for less money. The Samsung Odyssey G60SD sits in a similar performance tier. What you're paying for with the LG is the 480Hz ceiling, and that's a niche within a niche. If you're not actively competing in esports or you don't play games that can actually hit 480fps, you're leaving a lot of that premium on the table. For the right buyer, it's worth every penny. For everyone else, a 240Hz OLED gets you 90% of the experience for significantly less.

The LG 27GX790AB is a 26.5-inch OLED gaming monitor that sits firmly in the high-end esports bracket. It runs a 2560 x 1440 resolution at a frankly absurd 480Hz refresh rate, with a 0.03ms response time. If you're shopping for a competitive gaming display and speed is your only religion, this thing is preaching. LG pairs the panel with both FreeSync Premium Pro and G-Sync compatibility, so it plays nice with whatever GPU you're running.

At 400 nits peak brightness with DisplayHDR True Black 400 certification, this isn't the brightest HDR monitor on the shelf. But OLED's per-pixel contrast means those 400 nits go further than they would on an IPS panel. Blacks are actually black, not dark gray with a backlight glow. The RGB hexagonal backlighting on the rear is a nice touch if your setup faces a wall, though it's purely cosmetic.

We don't have a confirmed price in our database for this one yet, but given the specs and LG's positioning, expect to pay a premium. This is a specialist tool for people who take frame rates personally.

Skip this one if you're not a competitive gamer. The 480Hz refresh rate is the entire point of this monitor, and if you're not playing games that can actually hit those frame rates, you're paying a premium for performance you'll never see. Content creators and professionals should look at the ASUS ROG Strix XG27UCDMG for 4K resolution or the Dell UltraSharp U4025QW for a productivity-focused ultrawide. Console gamers should also pass, since the PS5 and Xbox Series X cap out at 120Hz, making this monitor massive overkill. And if you need multiple input sources or USB-C connectivity, the LG's limited ports will frustrate you daily.

Should you buy the LG 27GX790AB? If you're a competitive gamer who plays fast-paced shooters and has a GPU capable of pushing triple-digit frame rates at 1440p, yes. This is the fastest monitor we've ever tested, and the difference between 240Hz and 480Hz is real, even if it's subtle for casual players. The OLED panel means you're not sacrificing image quality for speed, which used to be the trade-off with high refresh rate TN panels.

But if you're a more general gamer, or you also use your monitor for work, movies, or anything that benefits from screen real estate and brightness, this isn't the best fit. The 26.5-inch size feels limiting for productivity, the 400 nits brightness is fine but not impressive, and the connectivity situation is genuinely disappointing for a monitor in this class. This is a specialist's tool, and it's excellent at its specialty. Just don't expect it to be a great all-rounder.