iirc the system profiler does not correctly report the Bus Speed correctly. It states mine as being 200Mhz when in fact it should be 2Ghz (2 x 1000Mhz).

edit: Maybe I am wrong about the Bus Speed reading - I'm probably getting confused with the HT speed. :\

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MacBook Pro 15" | Mac OS X 10.6 • 2 GHz Intel Core Duo • 2 GB DDR2-667 • ATI Radeon Mobility X1600 128 MB • 100 GB Serial-ATA
Hackintosh | Mac OS X 10.5.6 • 3 GHz AMD Athlon 64 X2 6000+ • MSI K9N AM2 • 2 GB DDR2-667 • NVIDIA GeForce 8800 GT 512 MB • ALC888 Audio • 300 GB Serial-ATA
iPhone 3G • 8 GB