MACs are called MACs since they do not use x86 based technology in their makings. They use something else I cannot remember right now. Plus, this is silly trying to compare x86 based AMD64s to the non x86 based 64bit G5s.. The G5s are very very good processors engineered by IBM (you are right Gian, Apple does not produce the chip itself, IBM does) However, Apple's unique bus controller setup is very effiecient, so they are very fast, and great for graphics design. Coupled with PCIX and a 6800GT DDL video card, the G5 is a good "computer" My Dad owns a dual 2.0GHz version (very nice) but the dual 2.5GHz version greatly excels above it. They are very smooth operating, and it is not fair to degrade Apple just because they are different then PCs... So they want to be unique, let them. I respect them for that, even though I like AMD more, I still GREATLY respect Apple.