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. …
In the Blackbook
The deeper explanation continues inside the app. The Blackbook publishes its verdicts here — the full write-ups stay in the book, on your rig, next to your own measurements.
The Compy Blackbook holds 191 graded entries like this one, judged against your hardware — and every change it does make is reversible, with the receipt to prove it.
See Compy →