Auto HDR
Also searched as: auto hdr · autohdr · windows auto hdr · hdr for old games
What it means
Auto HDR is a Windows 11 feature that adds HDR-style brightness and color to games that were only built for a standard (SDR) display — without the game itself supporting HDR.
More detail
If you have an HDR monitor, Auto HDR can make older or SDR-only games look richer — brighter highlights, more range — by expanding their colors on the fly. It is a visual feature, not a performance one: the frame-rate cost is tiny on a modern GPU, and it changes how the game LOOKS, not how fast it runs. Results vary by game — sometimes it is a lovely upgrade, sometimes it tints things oddly — so treat it as a per-game toggle to try, not a must-on. It needs Windows 11, an HDR-capable display with HDR turned on, and it does nothing for a game that already does its own HDR.
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