And I found the problem for my HDR issue. It was the overlay. Whenever that is turned on (and it is on all the time because, new card, I feel the need to monitor everything
![Stick Out Tongue :p :p](/styles/default/xenforo/vbSmilies/Normal/tongue.gif)
), it pops up on top of the game, and for some reason AMD thinks now the game is in the background, and throttling down. Don't know why it only happens when HDR is on, but there you have it. I am going to report it to AMD (because there is a little Bug Report Tool button there, so I may as well use it
![Stick Out Tongue :p :p](/styles/default/xenforo/vbSmilies/Normal/tongue.gif)
). Thanks to ltMatt, jinxpad and sHo0sH for the troubleshooting tips. Exactly 10 years ago I bought the HD7870, after which I went Team Green, but now I'm glad to be back on Team Red.