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Quickie Performance Results for 64-Bit vs 32-Bit

I have both Geekbench 32-bit and 64-bit. So, I made four quick benchmark passes. Here they are with their Geekbench scores.

64-bit SL/64-bit Geekbench--4,263
64-bit SL/32-bit Geekbench--3,910
32-bit SL/64-bit Geekbench--4,159
32-bit SL/32-bit Geekbench--3,809

Pending additional testing, these results suggest what I would hope for. 64-bit programs are faster than 32-bit programs whether run in 64-bit or 32-bit mode. There is only a small performance penalty for running 64-bit programs in 32-bit mode. Lastly, 32-bit programs run faster in 64-bit mode than in 32-bit mode. Apple couldn't have planned these outcomes any better IMO:) 🙂 🙂 😉

Message was edited by: donv (The Ghost)

15" 4 GB 2.8 GHz 500 GB MacBook Pro with LaCie 1TB external 7200 RPM RAID 0, Mac OS X (10.6), PowerBook 540c; iBook G4; 2 Dell Laps; 1 HP Lap; Mega Gateway FX Desk

Posted on Aug 28, 2009 5:50 PM

34 replies

donv_the_ghost Author

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Sep 4, 2009 2:40 PM in response to sinX

Thank you sinx. I am glad to know about the change. But, my interest is the comparison of SL and the last version of L. So, I would assume that the change you mention would make the last version of L more like SL if anything.

donv_the_ghost Author

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Sep 5, 2009 8:34 AM in response to Kort

I think the issue there is one of enough is enough. There must have been pages and pages of essentially the same stuff.

Sep 8, 2009 12:35 PM in response to donv_the_ghost

The problem of not answering a question is easily solved. Merely ask a friend to first ask the question, "I'm thinking about upgrading to Snow Leopard, but I'm worried about whether my machine is fast enough. How is the performance of Snow Leopard compared to Leopard?" Then post your benchmarks in reply after a couple of hours to make it not seem so obvious. Problem solved. 😀

donv_the_ghost Author

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Sep 8, 2009 2:02 PM in response to David A. Gatwood

I though of that, but it's not my style. And, the irony is that I actually did ask a question in my deleted post. I can't remember my words exactly, but I ask, in effect, if anyone could help me explain the unexpected results that I got.

If your machine is good on Leopard, then it will be good on SL if not better. Of course, I am assuming that you end up with no serious SL problems.

Message was edited by: donv (The Ghost)

Quickie Performance Results for 64-Bit vs 32-Bit