I installed Windows 7 x64 via boot camp and upgraded the Nvidia drivers to the 304.48 beta. This is the GPU-Z screencap: Speed is obviously great but isn't this a significant overclock ? Also I cannot enable PowerMizer even via registry keys. Whether or battery or AC, the 650M is going full speed. Any idea how to get PowerMizer running ? It would definitely help battery life in Windows if the 650M could quieted... particularly since i have found no way to utlize the integrated Intel video in Windows. I'm redownloading the Apple bootcamp drivers from 6/15 now and will try the older Nvidia driver that it includes, to see if the 650M can be controlled with those.