Apple
32 bit and 64 bit Snow Leopard Speed on a Macbook Pro
1 year ago Posted in: Apple, SOFTWARE View Comments

I’ve run Xbench a few more times, this time running only CPU tests and while booted in 64 bit and 32 bit (default). My Macbook Pro consistently scores 10-15 points higher in the speed tests while booted in 64 bit.

If you’d like to try it yourself restart your Mac and hold down “6″ and “4″ keys. To see if you have booted in 64 bit mode correctly go to About This Mac … More Info … Software

Screen shot 2009-08-29 at 11.52.43 AM

In default (32 bit) boot mode the Yes will read No.

Tags: , , , , , , , , , , , , , , , , , ,

This entry was posted on Saturday, August 29th, 2009 at 11:01 am

You can follow any responses to this entry through the RSS 2.0 feed.

  • blufire
    The 64-bit kernel is generally unnecessary for most users at this point. The majority of the 64-bit benefit applies even while running the 32-bit kernel (as long as you have a 64-bit CPU). Check out page 5 of Ars Technica's excellent Snow Leopard review for more info: http://arstechnica.com/apple/reviews/2009/08/mac-os-x-10-6.ars/5
blog comments powered by Disqus