Leopard = Faster?

ccalleri

macrumors member
Original poster
Jul 7, 2007
50
0
Toronto
Seeing as how Leopard will be 64bit through and through, do you think that this will increase system/application speed on Core 2 Duo's (since they are 64-bit)? Any thoughts?
 

astrostu

macrumors 6502
Feb 15, 2007
378
15
Perhpas should be posted to a new thread ... but what exactly is the advantage of 64-bit? I know it means that it can count higher and access more memory, but otherwise, what's the benefit? Like, how could 64-bit benefit Safari, or Mail, or OmniOutliner?
 

Caitlyn

macrumors 6502a
Jun 30, 2005
842
0
But wasn't Leopard written in 64-bit compatible code allowing it to take advantage of this technology?
 

defeated

macrumors regular
Feb 22, 2007
188
0
But Leopard will take advantage of the 64bit architecture, so in theory leopard should be much faster right? or is OSX already taking advantage of this?
emmmm, good question, whats the purpose of an OS? eventually, the question is " is photoshop/vlc/office faster?"

leopard is faster or not, is not a really a problem. IMO

If you really want to know if a 64 bit OS is "faster", rather then guess, you can just search around about the OSes already in the market, see if "vista 64 is faster than vista 32"?
 

ccalleri

macrumors member
Original poster
Jul 7, 2007
50
0
Toronto
emmmm, good question, whats the purpose of an OS? eventually, the question is " is photoshop/vlc/office faster?"

leopard is faster or not, is not a really a problem. IMO

If you really want to know if a 64 bit OS is "faster", rather then guess, you can just search around about the OSes already in the market, see if "vista 64 is faster than vista 32"?
now now let's not compare apples to crab apples ;)
 

memeyou

macrumors newbie
Jul 19, 2007
3
0
Seeing as how Leopard will be 64bit through and through, do you think that this will increase system/application speed on Core 2 Duo's (since they are 64-bit)? Any thoughts?
You will not notice any speed difference due to the mere change in 32bit to 64bit. Some killer apps may apply but I'm going to guess you don't use any scientific software.

now now let's not compare apples to crab apples
crab apple are apples, you know. people mix them in the cider to enhance flavor, you know.
 

TBi

macrumors 68030
Jul 26, 2005
2,582
0
Ireland
You will not notice any speed difference due to the mere change in 32bit to 64bit. Some killer apps may apply but I'm going to guess you don't use any scientific software.
Well actually... in 64-bit mode on X86 chips the number of available registers doubles. This means that X86 processors are faster in 64-bit mode than 32bit mode. So you will notice a difference.

G5 chips on the other hand are a different kettle of fish and won't see an increase.
 

snickelfritz

macrumors 65816
Oct 24, 2003
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Tucson AZ
64bit Leopard or Tiger will allow PSCS3 to directly address up to 8GB of RAM.
32bit Win Vista, for example, is restricted to a system total of 4GB. (32bit maximum).

Leopard will be perceivably "faster" due in part to CoreAnimation handing off more of the UI functions to the GPU.
 

TBi

macrumors 68030
Jul 26, 2005
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64bit Leopard or Tiger will allow PSCS3 to directly address up to 8GB of RAM.
32bit Win Vista, for example, is restricted to a system total of 4GB. (32bit maximum).

Leopard will be perceivably "faster" due in part to CoreAnimation handing off more of the UI functions to the GPU.
Well it should allow access to a lot more than just 8GB of ram. Also x86-64 processors benefit from increased register count in 64-bit mode which allows them to run faster.
 

snickelfritz

macrumors 65816
Oct 24, 2003
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Tucson AZ
8GB is the limit for CS3 in a 64bit OS.
This limit is not based on the theoretical limits of 64bit software, but rather the limits of the latest Photoshop architecture.
 

snickelfritz

macrumors 65816
Oct 24, 2003
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Tucson AZ
It's probably just a compromise based on diminishing returns.
The benefits of addressing more than 8GB of memory would probably be swamped by disk access bottlenecks with files over 2GB.

CS3 is certainly a vast improvement over CS2, in terms of memory addressing.
 

Lesser Evets

macrumors 68040
Jan 7, 2006
3,490
1,234
I run parts of CS3 on my new 2.66 duo, and it is screaming fast compared to my old G4 Mdd duo 1.25 model. Instant squee. CS2 was just PURE JUNK.

Obviously Leopard will work faster on the 64 bit machines. That's just common sense, unless Apple really blows it and loads in code that slows it down horribly fast, but I doubt it.
 

Fairly

macrumors regular
Sep 24, 2006
160
0
Cambridge UK
Seeing as how Leopard will be 64bit through and through, do you think that this will increase system/application speed on Core 2 Duo's (since they are 64-bit)? Any thoughts?
Wider registers doesn't imply faster CPUs unless instructions previously had to be broken up into successive feeds. For what an instruction oriented computer does 64-bit is total overkill. 64-bit lets you deal with inordinate quantities of data in RAM without swapping but it doesn't at all mean "faster". If anything it will be a bit slower as more data has to be fed into the CPU(s) and a lot of that will be "empty".
 

TBi

macrumors 68030
Jul 26, 2005
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0
Ireland
Wider registers doesn't imply faster CPUs unless instructions previously had to be broken up into successive feeds. For what an instruction oriented computer does 64-bit is total overkill. 64-bit lets you deal with inordinate quantities of data in RAM without swapping but it doesn't at all mean "faster". If anything it will be a bit slower as more data has to be fed into the CPU(s) and a lot of that will be "empty".
How about more registers? You know maybe double ... like in the x86-64 instruction set...