Originally Posted by Lfctony
Again, that reviewer is stupid. The 32bit version is slower because it's not being run in its native environment. Try running the 32bit exe in an actual 32bit installation of Vista, there is no difference vs 64bit, and the 32bit is actually a bit faster...
If that where the case, all 32-bit games would be much slower on 64-bit Vista compared to 32-bit Vista.