On my HP Compaq 8510w laptop with 3gb ram, I got totally different results. Firefox 3.0.6 was used in both Windows & Linux. At least I am happy Linux user, even I still have dual boot on my machine.
Linux ubuntu-810 2.6.27-11-generic #1 SMP Thu Jan 29 19:24:39 UTC 2009 i686 GNU/Linux
RESULTS (means and 95% confidence intervals)
Total: 4006.6ms +/- 1.3%
3d: 471.8ms +/- 9.4%
cube: 168.4ms +/- 19.6%
morph: 176.4ms +/- 17.7%
raytrace: 127.0ms +/- 14.5%
access: 573.8ms +/- 5.5%
binary-trees: 85.0ms +/- 29.3%
fannkuch: 197.8ms +/- 16.5%
nbody: 188.0ms +/- 6.8%
nsieve: 103.0ms +/- 19.7%
bitops: 452.4ms +/- 11.3%
3bit-bits-in-byte: 87.6ms +/- 43.8%
bits-in-byte: 98.4ms +/- 32.6%
bitwise-and: 125.4ms +/- 12.6%
nsieve-bits: 141.0ms +/- 20.7%
controlflow: 61.8ms +/- 45.3%
recursive: 61.8ms +/- 45.3%
crypto: 256.0ms +/- 26.4%
aes: 93.0ms +/- 18.3%
md5: 81.0ms +/- 50.7%
sha1: 82.0ms +/- 42.8%
date: 415.0ms +/- 15.3%
format-tofte: 243.6ms +/- 11.5%
format-xparb: 171.4ms +/- 23.0%
math: 467.8ms +/- 11.9%
cordic: 165.2ms +/- 22.5%
partial-sums: 197.0ms +/- 9.8%
spectral-norm: 105.6ms +/- 33.2%
regexp: 306.4ms +/- 11.0%
dna: 306.4ms +/- 11.0%
string: 1001.6ms +/- 4.3%
base64: 142.8ms +/- 4.9%
fasta: 228.0ms +/- 16.3%
tagcloud: 181.6ms +/- 16.6%
unpack-code: 325.8ms +/- 3.4%
validate-input: 123.4ms +/- 20.8%
Windows XP SP3
RESULTS (means and 95% confidence intervals)
Total: 4917.4ms +/- 4.3%
3d: 564.2ms +/- 13.9%
cube: 209.2ms +/- 6.0%
morph: 164.4ms +/- 37.6%
raytrace: 190.6ms +/- 6.7%
access: 779.4ms +/- 9.2%
binary-trees: 116.2ms +/- 5.4%
fannkuch: 328.4ms +/- 4.2%
nbody: 189.4ms +/- 28.5%
nsieve: 145.4ms +/- 37.9%
bitops: 650.4ms +/- 32.3%
3bit-bits-in-byte: 155.0ms +/- 43.7%
bits-in-byte: 174.8ms +/- 29.5%
bitwise-and: 131.0ms +/- 44.7%
nsieve-bits: 189.6ms +/- 29.4%
controlflow: 94.4ms +/- 40.8%
recursive: 94.4ms +/- 40.8%
crypto: 409.2ms +/- 31.0%
aes: 136.8ms +/- 14.2%
md5: 130.0ms +/- 40.7%
sha1: 142.4ms +/- 41.9%
date: 385.6ms +/- 16.2%
format-tofte: 209.4ms +/- 23.4%
format-xparb: 176.2ms +/- 9.9%
math: 575.0ms +/- 8.4%
cordic: 250.4ms +/- 14.2%
partial-sums: 213.4ms +/- 13.2%
spectral-norm: 111.2ms +/- 53.9%
regexp: 278.0ms +/- 26.2%
dna: 278.0ms +/- 26.2%
string: 1181.2ms +/- 10.2%
base64: 169.0ms +/- 20.7%
fasta: 262.2ms +/- 14.2%
tagcloud: 188.2ms +/- 32.6%
unpack-code: 361.6ms +/- 24.6%
validate-input: 200.2ms +/- 21.5%