Although they're EFI based, this has nothing to do with the PRAM of older PPC macs, which has become less and less used since the advent of OS X which stores 99% of it's settings in .plist files on the HD. the PRAM used to store all sorts of information but now I think it's probably only used to store the startup disk preference and other minor things.

But PC laptops still don't have EFI I thought.