What? What Mac? What PC? What Windows OS? This claim makes no sense because there is nothing super special about the hardware that Apple uses. I'm not aware of any reason why I couldn't order parts from Newegg tonight to assemble a PC that would run XP at least as fast (probably faster) than any Apple. The advantage that Apple has is their OS, combined with the tight control over hardware that allows them to avoid driver and software issues that inevitably crop up with Microsoft operating systems, and the thousands of manufacturers who make hardware and software to work with them.