I mean, wow, look at that. A comparable system with a G5 processor is faster. That is, if it's comparable. Here's a quote from the fine, greyed out print under this image.
The iMac systems used 128 MB ATI Radeon 9600 graphics processors. The Dell Dimension 4700c used a 64 MB ATI Radeon X300 SE graphics processor.
So the Dell system had a lower-model graphics card with half the RAM. Now there's a fair comparison. I haven't even investigated the speed of the Dell processor (I'm not going to bother), but it would seem to me that seeing as how you can put any graphics card into a Mac or PC now, it would have been a much fairer test to set both machines up with the same quantity of RAM, same graphics processor and same graphics memory. But are we interested in fair comparisons? Obviously not.
This isn't so much a Mac-hack as just a general advertising/corperate garbage hack. I just wish people would be honest, you know? Sell the thing on it's selling points. Don't mention it's shortfallings - that's fine. But just don't pretend it's something it's not.