ATI 6870 not overclocking (Low FPS)

[Orpheus]

Originally Posted by Blackdog_kt

My suspicion is that getting rid of the logo lets the drivers recognize there's a game running and from that point on, it dynamically throttles the GPU up/down as needed, clocking up when in-game and undeclocking it back down once i alt-tab to the desktop.

Glad it's been an improvement. What seems to be happening, as I said before is that the Ubi splash forces the card to video clock speeds, but Powerplay (or whatever) isn't detecting the swap back to 3D speeds. If you check GPU-Z and make sure that it's refreshing while not on screen, you should be able to see if your card is clocking full during gameplay. Without the splash movie confusing the card, the game seems to clock normally

Originally Posted by jdbecks

I wonder if this can work for Nvidia cards too??

If Nvidia cards are underclocking in the same way as the ATI ones then I see no reason why not - it's simply a case of the UVD setting overriding the usual 3D setting when the splash plays. To the best of my knowledge though, I've not seen any reports from Nvidia users complaining about underclocking, so afaik this is an ATI only issue.