@Jocelyn84
I ran kext utility to rebuild the caches, as per your posts on insanelymac and here. Cinebench scores ~23fps in both cases before and after editing Infolist with MacPro4,1 with GTX 470 device ID.
I do notice that the fan on the EVGA GTX 470 is noticeably louder than the GTX 285. It appears that there doesn't seem to be good fan speed management. I sounds like the fan is either on or off (in sleep mode its off), but there is no gradation in fan speed. I'm not saying fan is running 100%, it just running loud even at idle.