Some people that try to explain 64 bit performance will simply say “64 bit is faster”. That is incorrect. Though the actual results may make that appear to be accurate. Think of your computer as a multi lane highway. The I/O path (Processor, System bus and RAM) limit the number of lanes (32 or 64bit)… Continue reading High Performance Computing. Part 1 of 2. Why 64 bit operating systems outperform the 32 bit versions.