I was playing with SpeedTest.net this morning and I found something interesting. This is the result I got this morning running the test from my Ubuntu Linux desktop (2 Ghz Pentium 4 512 MB Ram).
Second Windows XP Test
I ran both these tests using Firefox. Just for fun, I decided to try it on Internet Explorer 7.
Send Windows XP Test (IE7)
Now back to Ubuntu Linux for one more test
It may be just me, but I see a little bit of a difference. YMMV.