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Response, Input Lag, Viewing Angles and Uniformity

I gathered my data on five other speedy 27-inch QHD OLEDs to compare the XG272-2K’s performance. There’s MSI’s MPG271QRX, Dough’s Spectrum Black 27, Pixio’s PX277 OLED MAX, Alienware’s AW2725DF and Acer’s X27U.

Pixel Response and Input Lag

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

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ViewSonic XG272-2K-OLED — (Image credit: Tom's Hardware)

Though the Alienware and MSI run at 360 Hz, I saw no visible advantage to that higher frame rate. The MSI manages to draw a full white screen in 3ms, whereas the others, including the XG272-2K, draw it in 4ms. But there is no visible difference in Blur Busters test patterns. At any speed above 200fps, there is no motion blur whatsoever.

360 Hz nets a slight input lag advantage though, but note that of the top three screens, two are 240 Hz. Given this data and my own observation, I see no reason to pay extra just for 360 Hz. 240 delivers perfectly smooth performance. The XG272-2K comes last at 23ms but that too is an invisible thing. Gaming on the ViewSonic is every bit as satisfying as the others.

Test Takeaway: Unless you’re gaming for a living, the XG272-2K provides all the necessary speed and smoothness for a superlative gaming feel and experience. There is no motion blur over 200fps. If you find speeds dropping below 150, the BFI feature is useful at keeping blur at bay. Though it came last in the input lag test, it’s still fast enough to feel the same as the other screens. I have no complaints about the XG272-2K’s video processing and motion resolution.

Viewing Angles

While I have noted extremely subtle differences between OLED panels in my viewing angles test, none can be said to be better than any other. The XG272-2K shows a slight coolness at 45 degrees to the sides but the color temp is still very close to 6500K. There is no loss of light output or gamma. The top view is also solid with just a bit lighter gamma but no change in color or brightness.

Screen Uniformity

To learn how we measure screen uniformity, click here.

Usually, I’d be heralding the XG272-2K’s excellent uniformity score of 5.93%. While impressive, there are three OLEDs here that are even more so. Does this make a visual difference? No. You won’t see any glow, bleed or hotspots in the tip five screens. The Acer X27U sample I tested had a slight issue it its bottom right corner.

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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.

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