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Response, Input Lag, Viewing Angles and Uniformity

To compare the AW3425DW’s performance, I’ve rounded up a speedy group of 34-inch 21:9 OLEDs. At 175 Hz is AOC’s AG346UCD. At 240 Hz are Corsair’s 34WQHD240-C, Acer’s X34, Gigabyte’s MO34WQC2, and Asus’ PG34WCDM.

Pixel Response and Input Lag

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Alienware AW3425DW — (Image credit: Tom's Hardware)

If you’re going for an OLED, it should be 240 Hz. Though the 175 Hz AOC isn’t that far behind the others in performance, it’s only $50 less than the AW3425DW, so you might as well get the fastest monitor in the field, which is, coincidentally, the Alienware. It refreshes in 4ms like the other 240 Hz screens, but manages 2ms less input lag with an 18ms total score. It’s faster than many 27-inch 16:9 monitors, and it is the fastest 34-inch ultra-wide in my test database. Motion processing is visually perfect with no blur observed in moving test patterns. Objects maintain full resolution no matter how fast they go by. Background graphics also stay sharp during rapid camera pans.

Test Takeaway: Nearly any OLED will deliver perfect motion resolution and low input lag, but the AW3425DW is the quickest 34-inch 21:9 screen I’ve tested to date. It delivers a premium feel with no compromises.

Viewing Angles

Some Quantum Dot OLEDs show a subtle tint at 45 degrees to the sides, but the AW3425DW remains consistent in color, brightness and gamma. You can easily share the screen without sacrifice. The top view has reduced gamma, but its color and brightness are barely affected.

Screen Uniformity

To learn how we measure screen uniformity, click here.

The AW3425DW includes screen uniformity in its factory calibration data, and my sample aced the test with one of the lowest scores I’ve ever recorded. 1.78% is about as good as it gets with no visible issues in any field pattern, color or gray. This is excellent performance.

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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.