Hey there, as bluez_ps mentioned, basically if your window looks like that and you're able to hit "ok", then, that's pretty much it. Likewise for myself, it doesn't recognize anything in either dropdown menu for the "plugged in" and "battery" section, but just enabling powerplay as a whole (the box you have checked) then ensuring my computer is plugged in when doing anything that needs some graphical oomph is enough to get the better performance.





TL;DR - If you're able to check the powerplay box and hit ok, then that should do the trick.





If you're not able to hit ok: then, did you install BOTH drivers as I listed above? One and then the other on top of that one? If Windows kicks you a "this driver is unsigned, install anyway?" message, then the answer to that is yes. Again: specifically download and install the drivers I listed, don't go straight to AMD's website. Their stub installer doesn't recognize the 6750M for some reason.





If that doesn't help: can you post a step-by-step of what you've done so far to get to the point where you're at now?





To be crystal clear:

Enabling powerplay as shown here will restore performance to good levels but will NOT fully enable powerplay the way ATi has support for it on other Windows 7 laptops.





The only way that's ever going to happen is if Apple works with them to get the whole catalyst software suite up and running - which, would be awesome but I am for sure not holding my breath...





If you're wanting genuine powerplay support - like the downclocking the GPU when not doing anything intensive, then AFAIK the only way to actually do that is to be actively checking and un-checking the powerplay box. While it seems counter-intuitive: the GPU is downclocked when powerplay is unchecked, and clocked normally when powerplay is checked...