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HDR Performance

Our HDR benchmarking uses Portrait Displays’ Calman software. To learn about our HDR testing, see our breakdown of how we test PC monitors.

The FO32U2P supports HDR10 and HLG (Hybrid Log Gamma) formats by switching automatically. It offers five total HDR modes, three of which include picture controls. This is a rarity among HDR monitors and is definitely a good thing.

HDR Brightness and Contrast

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Gigabyte Aorus FO32U2P — (Image credit: Tom's Hardware)

The FO32U2P’s variable brightness feature works more aggressively in HDR mode. I measured 457 nits from a 25% window with APL Stabilize in the OLED Care menu set to Middle. Oddly, the Low and High options were both less bright. The FO32U2P is rated for VESA DisplayHDR 400, and it meets that spec with room to spare. If you want maximum HDR brightness from your gaming monitor, Mini LED is the best choice, as the AOC and Acer demonstrate with their lofty peaks of 1,650 and 1,150 nits, respectively.

I never thought I’d see an OLED lose a black level or contrast comparison, but the Philips manages this unfortunate feat because it doesn’t shut off black pixels completely. Though its HDR contrast ratio of 20,006.4:1 is high, it is well behind the other screens.

Grayscale, EOTF and Color

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The FO32U2P default HDR mode is labeled “HDR,” and it is the most accurate option. It grays out image controls, so if you want to make changes, choose one of the other presets. They are all color-accurate, but HDR has the best luminance tracking. Grayscale is without visible error. The EOTF starts a bit below the reference line, and then goes a tad above before reaching the tone-map transition at 65%. This is a minor error that I could not spot in content.

HDR color tracking shows general over-saturation in the manner of most wide-gamut screens. Points are on their hue targets and progress linearly, so there’s no foul here. The FO32U2P’s HDR color is exemplary. It covers a decent portion of Rec.2020 too, so if you watch or play content mastered to that spec, you’ll see almost all the color present in the original material.

Test Takeaway: The FO32U2P has the same stunning HDR as every other OLED I’ve tested. With deep blacks, color accuracy and high saturation, it has impressive impact for games and video. It has the added bonus of HDR picture adjustments which is something you won’t find in most other HDR screens.

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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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