I downloaded the new Windows 7 Beta (64-bit) and did a clean installation on my 3GB MacBook (13-inch Late 2006 with an Intel Core2 Duo Mobile Processor T7200). I used the Apple BootCamp64.msi drivers and all the Apple hardware devices installed correctly.

In November, I tried the 32-bit version of Windows 7 (build 6801) and the Windows 7 Beta (build 7000) doesn’t seem too much different.
When I ran the Windows Experience Index assessment, the base score was 2.0 (build 7000 64-bit) compared to a base score of 3.0 with the 32 bit version of build 6801. The low score was because of the 2.0 subscore of the data transfer rate of the primary hard disk, a 120 GB Toshiba MK1234GSX. But I don’t feel there is any sluggishness while using the computer.
The Processor and Memory (RAM) subscores were 5.0, while the Graphics and Gaming Graphics subscores were 3.1, not unreasonable for the Intel GMA 950 graphics processor. Anyway, I don’t have much ambition to play Crysis on my Macbook.
@Kent, The Windows 7 partition is 50GB; my disk is only 120GB.
The Windows Experience Index for the disk went up in build 7100 with the same hardware and same size partition.
hi , the score might be due to your windows partition space which is too low. Try increasing the space for the windows partition.
hey i only just saw your blog today. it’s cool =]
Mike,
I slso have a Powerbook 12″ G4 (rev A). I put a 7200 RPM hard disk in it and it felt significantly more responsive.
When I bought my Macbook, the largest drive available was 120GB. So when this starts to feel sluggish, I’ll probably upgrade to a 320GB, 7200 RPM drive. The Seagate Momentus 7200.3 ST9320421AS is only $90(USD) – £65.
Hi,
Just found this blog via Google. I’m also getting 2.0 for the 250GB hard drive on my aluminium Macbook. In practice, performance seems fine and Windows 7 boots as fast as it does on my desktop PC.