I've tried both and it seems as though the 32 bit runs faster than the 64, and my processor is compatible with 64 bit, Intel Pentium Dual-Core 2ghz, and 2 GB of RAM. I don't know why the 32 bit ran faster than the 64.
Also, is it possible for me to partition my hard drive and install the 32bit to one partition and the 64bit to the other?