Asus ProArt PA27USD 27-inch OLED review: Precision color with high-speed gaming prowess

Asus combines professional and gaming cred in the ProArt PA27USD.

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Asus ProArt PA27USD
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(Image credit: © Tom's Hardware)

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Normally, I wouldn’t say much about a professional monitor’s speed and response because most of them top out at 60 Hz and don’t include Adaptive-Sync. The PA27USD has the latter and a 240 Hz refresh rate to go with it. It games just fine, extremely well in fact.

Pixel Response and Input Lag

Click here to read up on our pixel response and input lag testing procedures.

· Response Time Full black to white transition – 0.24ms

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· Absolute Input Lag Full black to white transition – 20.4ms

The PA27USD has panel response typical of the 240 Hz OLEDs I’ve tested. They all transition from black to white (one-inch square) in 0.12-0.24ms, a minute difference. This means motion resolution is visually perfect, moving objects render with the same clarity as stationary ones.

In the lag test, the PA27USD proved a tad slower than other 240 Hz Ultra OLEDs, but only by a few milliseconds. The closest competitor here is Dough’s Spectrum Black, which measured 20ms. The current speed king amongst 240 Hz 4K OLEDs is Asus’ XG32UCWMG, which scored 14ms in my test.

Test Takeaway: The PA27USD is by far the most game-worthy professional display I’ve tested. It isn’t super speedy, but it is more than speedy enough for skilled gamers. It has the same perfect motion resolution as any OLED gaming monitor running at 240 Hz or higher.

Viewing Angles

Asus ProArt PA27USD

(Image credit: Tom's Hardware)

I’ve noted that Quantum Dot OLEDs show a slight green tint in the 45-degree horizontal photo. The QD layer creates a slight polarization. The PA27USD maintains consistent gamma and brightness though. From the top, light drops by around 10% and there is a loss of gamma which washes the image out a bit.

Screen Uniformity

To learn how we measure screen uniformity, click here.

· Screen Uniformity Deviation From Center 0% Black Field – 6.62%

I have yet to find an OLED with a non-uniform screen. The PA27USD is about average with its 6.62% deviation from the center zone. There are no visible issues in any field pattern of any brightness level or color. This is excellent performance.

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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.