CNET has benchmarked Windows 7 and Snow Leopard using the same hardware to test both operating systems. The performance test ran using software available on both operating systems including iTunes 9, QuickTime, Call of Duty 4 Modern Warfare and Cinebench R10; testing multimedia multitasking, shutdown time, boot time and iTunes encoding. The laptop used was a 15-inch MacBook Pro with 2.5Ghz Intel Core 2 Duo, 4GB of RAM with a 512MB Nvidia GeForce 9600M GT video card. Snow Leopard was installed on a stock 320GB hard drive (Hitachi model HTS543232L9SA0), while Windows 7 64-bit was installed on a 320GB Western Digital Scorpio Blue (model WD3200BEVT). The hard drives were identical in the tests, both supporting SATA 3Gpbs interface with 8MB of cache memory, spinning at 5,400rpm. Windows 7 64-bit was running on Boot Camp 3.0. The computer was set for high performance in power management for optimum performance on both operating systems. All software tested was in 64-bit, except QuickTime and Call of Duty 4.

The conclusion? First all of all, you'll get much better battery life running OS X on Mac laptops than running Windows. Secondly, performance-wise, Windows 7 is probably a better choice if you are a gamer (there are more games developed for Windows, anyway), even on Mac hardware.

Third, if you can get by with just software designed by Apple and if money is not a big issue, you will be happy with a Mac. Examples of these software choices are iTunes, iLife, QuickTime, Safari, iChat, and so on (and you probably won't need much more than those for daily entertainment and communication needs). Finally, if money is not an issue--and it definitely is for most of us--you should get a Mac anyway. It's the only platform, for now, that can run both Windows and OS X.