Asus ROG Swift PG27UCDM 4K 240 Hz QD-OLED gaming monitor review: High-end in every way

27-inch 4K QD-OLED gaming monitor with 240 Hz, Adaptive-Sync, HDR10, and wide gamut color.

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Asus ROG Swift PG27UCDM
Editor's Choice
(Image: © Tom's Hardware)

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I have yet to review an OLED gaming monitor I didn’t love. They are incredibly consistent in all the important areas: image fidelity, color accuracy, video processing, build quality, even styling is a cut above the rank and file. I always look for some standout feature, and though it is usually small, most displays have something that sets them apart.

Asus ROG Swift PG27UCDM

(Image credit: Asus)

In the case of Asus’ ROG Swift PG27UCDM, there are two things to recommend: high pixel density and Dolby Vision. The first one is easy, put 4K on a 27-inch screen and you get 163ppi. Add in OLED contrast, QD-OLED color and out-of-box accuracy and you get a fantastic image that makes you forget about jumbo monitors.

Dolby Vision is the big one here. I used to ding HDR monitors for leaving it out until I noticed that no one was including it. But it’s also something I’ve become spoiled by when watching my LG OLED TV. Dynamic tone mapping sets it above HDR10 enough that you can easily spot the difference. Though it isn’t supported by many games, it is common on 4K Blu-ray and streaming services like Netflix and Disney+. The PG27UCDM then becomes a premium personal television, just add headphones.

(Image credit: Tom's Hardware)

For gaming, it is on par with the best OLEDs I’ve reviewed. Its 18ms total lag score ties it with the HP Omen 32 OLED for fastest 4K monitor. It is lightning quick with perfect video processing. And if you happen to pair it with a less capable system, ELMB keeps motion blur at bay below 120 Hz.

Build quality and function are also at a high level. Like any ROG product, the PG27UCDM is a flagship. You get extra cooling, which ensures long life and the backing of a three-year warranty. Asus’ DisplayWidget Center is another value-add. And supreme tweakability means you can make it to your liking in every way.

The Asus ROG Swift PG27UCDM is a premium purchase to be sure but it truly embraces the mantra, “you never regret buying the best.” If you have the budget and want one of the best OLED gaming monitors available, definitely check it out.

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Christian Eberle
Christian Eberle
Contributing Editor

Christian Eberle is a Contributing Editor for Tom's Hardware US. He's a veteran reviewer of A/V equipment, specializing in monitors. Christian began his obsession with tech when he built his first PC in 1991, a 286 running DOS 3.0 at a blazing 12MHz. In 2006, he undertook training from the Imaging Science Foundation in video calibration and testing and thus started a passion for precise imaging that persists to this day. He is also a professional musician with a degree from the New England Conservatory as a classical bassoonist which he used to good effect as a performer with the West Point Army Band from 1987 to 2013. He enjoys watching movies and listening to high-end audio in his custom-built home theater and can be seen riding trails near his home on a race-ready ICE VTX recumbent trike. Christian enjoys the endless summer in Florida where he lives with his wife and Chihuahua and plays with orchestras around the state.