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Response, Input Lag, Viewing Angles and Uniformity

The MPG271QR is the third 500 Hz OLED I’ve reviewed so for the comparison, I’ve included Aorus’ FO27Q5P and Asus’ XG27AQDPG. At 480 Hz is LG’s 27GX790A. At 360 Hz are Samsung’s OLED G6 and Philips’ 27M2N8500.

Pixel Response and Input Lag

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MSI MPG271QR X50 — (Image credit: Tom's Hardware)

The “is it fast?” question has two answers here. 500 Hz means super-quick panel response; 2ms is what I’ve measured from the three top finishers. But remember, a 240 Hz screen that draws a full white field in 4ms has perfect motion resolution. Visually, there is no difference between 240 fps and 500 fps on an OLED display.

It seems that 500 Hz also doesn’t get you the lowest input lag. The MPG271QR is low at 19 ms, but the 360 Hz LG and Philips still sit atop my database of 448 monitors as the quickest ever. That said, you are unlikely to notice a difference between 10ms and 19ms during gameplay. 9ms, that’s nine one-thousandths of a second, is less than the blink of an eye.

Test Takeaway: The MPG271QR is super quick for sure, but some less expensive monitors running at 360 Hz are quicker, at least to my 1,000 fps camera. You won’t be sacrificing gaming feel or response with the MSI, it delivers incredible performance. It also delivers perfectly smooth motion at frame rates over 200 fps. And it offers MPRT blur reduction to keep the action smooth at slower rates.

Viewing Angles

The MPG271QR offers perfect off-axis image quality with no visible change to brightness, gamma or color. At 45 degrees to the sides, you’ll see the same picture as if you are sitting in the center. The top view is a tad warm with a 10% light reduction and slightly lower gamma. All the steps are still visible though. This is excellent performance.

Screen Uniformity

To learn how we measure screen uniformity, click here.

I’ve reviewed many OLEDs by now, and almost without exception, they have the best screen uniformity you can buy. The MPG271QR deviates by just 3.62% average from the center zone. That’s well below the point where you can see bleed or glow with the naked eye. There is nothing to complain about here.

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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.