I have Windows 7 Ultimate x64 RTM via BootCamp on my Unibody Macbook.
Specs:
2.0 Core 2
4GB DDR3
The 64-bit kernel was used for both the 32 and the 64-bit SL tests
The 64-bit version of Geekbench for Mac is a slightly older version (2.1.2 vs 2.1.4) not sure if that makes a difference
See attached picture
The Difference between Win7 x64 and SL x64 was very small. What I found interesting was the large difference between the 32-bit tests.
Specs:
2.0 Core 2
4GB DDR3
The 64-bit kernel was used for both the 32 and the 64-bit SL tests
The 64-bit version of Geekbench for Mac is a slightly older version (2.1.2 vs 2.1.4) not sure if that makes a difference
See attached picture
The Difference between Win7 x64 and SL x64 was very small. What I found interesting was the large difference between the 32-bit tests.