Mine is a Dell notebook too, the Catalyst Control Center is version 2013.0830.1944.33589.
The problem is that under Windows 7 I cannot upgrade the driver (Dell doesn't provide upgrades and the official one results in a bluescreen upon installation). Under Windows 8 (and 8.1) however I can use the official driver with the above mentioned Radeon Mobility tool.
That being said, upgrading helps a little, especially with performance in newer games but it doesn't do wonders (for me, but my card is pretty old by now).
I'm not brave enough to try the Mobility tool, I'm afraid ^^ But the difference in drivers is the only thing I can think of to explain the discrepancy in performance between our two machines. Unless
DOS simply doesn't like the 7970 right now :-/
EDIT: So I ran
DOS with GPU-Z in the background, and guess what: GPU load on the 7570m is at 0% so it
appears that even though EOCApp.exe is set to "High Performance" in the Catalyst Control Center,
DOS is not using the discrete GPU. That explains a lot lol Question is, how would I fix that?
