But if you aren't doing that, then it probably doesn't matter. Look at any benchmark, and the time lengths, and ask yourself that question. If you are using something like a Photoshop, doing a 3D render or MP3 encoding, then there is a signicant difference between 30 seconds and 15 seconds, or 10 minutes versus 5 minutes. Any complaints with speed I have on a Mac are not centered around browsing. Notice that the subjective measurements were all most critical items.
Computers are the same way.
The difference in time between machines in loading100,000 web-pages won't make up for a single time that I have to reinstall Windows and all my Applications. If you give people the benchmarks without giving them an explanation of why, then you are doing no service to the truth or to the users understanding. I could get into the technicalities of the difference between latency versus throughput, and how their latency measuring benchmarks may be less important than a throughput measurement. The tests are showing that for right now, the performance of some things that users shouldn't care about much, are performing better on the PC than on the Mac. I can live with that.