Anyone know what setting might be causing this (poor GPU performance on battery).

[EricVT]

My MBP runs extremely nicely, but it seems that the GPU runs a lot slower when the notebook is running on battery power instead of being plugged into an outlet. When playing a game on outlet power I can unplug the power cable and see an instant drop in FPS (a significant one, usually down to <10 FPS), but then the problem goes away the second I plug it back into the wall.

Anyone know what setting I can change to remedy this?

 

[squeeks]

when on battery put the power settings on normal instead of better energy savings?

 

[The Flashing Fi]

My MBP runs extremely nicely, but it seems that the GPU runs a lot slower when the notebook is running on battery power instead of being plugged into an outlet. When playing a game on outlet power I can unplug the power cable and see an instant drop in FPS (a significant one, usually down to <10 FPS), but then the problem goes away the second I plug it back into the wall.

Anyone know what setting I can change to remedy this?

Energy saving. I don't know if you can change it in Mac OS X.

 

[EricVT]

I've done that, even tried using "Best Performance" option.

Seems to not make a difference.

 

[heatmiser]

The processors throttle down on battery power. There's no way to circumvent this on OS X. Think Different™ and keep that laptop plugged in if you want decent framerates. That, or find a copy of the game for XP/Vista.

 

[e12a]

this is not isolated to Mac. Ive used IBMs that do the same thing.

 

[taylorwilsdon]

this is not isolated to Mac. Ive used IBMs that do the same thing.

Yeah, but you can disable it in the bios.

I don't play games on the computer, so it doesn't bug me that much, but I hate it when the dock gets all choppy on battery power even if its set to best performance.