Benchmarks PowerPC G5 vs. CoreDuo
IOW you can't answer my question without moving the goalpost. Nobody was talking about Intel.
That's a good one.
Derek Currie wrote (in article Sounds like an admission that Symantec products suck butt on Wintel and they can't fix them anymore. It's not misleading. The reference is to...
"Allocating memory above 2 GB with 64-bit processors Photoshop CS2 is a 32-bit application. When it runs on a 32-bit operating system, such as Windows 2000 and Windows XP Professional, it can access the first 2 GB of RAM on the computer.The operating system uses some of this RAM, so the Photoshop Memory Usage preference displays only a maximum of 1.6 or 1.7 GB of total available RAM. If you are running Windows XP Professional with Service Pack 2, you can set the 3 GB switch in the boot.ini file, which allows Photoshop to use up to 3 GB of RAM.
When you run Photoshop CS2 on a computer with a 64-bit processor (such as a, Intel Xeon processor with EM64T, AMD Athlon 64, or Opteron processor), and running a 64-bit version of the operating system (Windows XP Professional x64 Edition), that has 4 GB or more of RAM, Photoshop will use 3 GB for it's image data. You can see the actual amount of RAM Photoshop can use in the Maximum Used By Photoshop number when you set the Maximum Used by Photoshop slider in the Memory & Image Cache preference to 100%. The RAM above the 100% used by Photoshop, which is from approximately 3 GB to 3.7 GB, can be used directly by Photoshop plug-ins (some plug-ins need large chunks of contiguous RAM), filters, actions, etc. If you have more than 4 GB (to 6 GB), the RAM above 4 GB is used by the operating system as a cache for the Photoshop scratch disk data. Data that previously was written directly to the hard disk by Photoshop, is now cached in this high RAM before being written to the hard disk by the operating system. If you are working with files large enough to take advantage of these extra 2 GB of RAM, the RAM cache can speed performance of Photoshop."
vs.
I think you mean 'conveniently'. No actually. The only reason I dropped it was so as to leave something for folks to read at the source...
Allocating Memory above 2 GB with 64-bit Processors Photoshop CS2 is a 32-bit application, and when you run it on a 32-bit operating system, such as Mac OS 10.2.8, it still can only access 2 GB of RAM. The operating system uses some of this RAM, so the Photoshop Memory Usage preference displays only a maximum of 1.6 or 1.7 GB or total available RAM.
When you run Photoshop CS2 on a 64-bit operating system, such as Mac OS 10.3 and higher, it can access up to 8 GB of RAM. You can see the actual amount of RAM Photoshop can use in the Maxiumum Used By Photoshop number when you set the Maximum Used by Photoshop slider in the Memory & Image Cache preference to 100%. The RAM above the 100% used by Photoshop, which is from approximately 3 GB to 3.7 GB, can be used directly by Photoshop plug-ins (some plug-ins need large chunks of contiguous RAM), filters, actions, etc. If you have more than 4 GB (to 8 GB), the RAM above 4 GB is used by the operating system as a cache for the Photoshop scratch disk data. Data that previously was written directly to the hard disk by Photoshop, is now cached in this high RAM before being written to the hard disk by the operating system. If you are working with files large enough to take advantage of these extra 2 GB of RAM, the RAM cache can speed performance of Photoshop.
Further fun with Lefty ahead: A typo. I make a few. Obviously its Clbuttic Mac OS. No actually. I think it was the Navy who did the definitive...
I sure can see why "Pros" would want to run Photoshop CS 2 on a REAL 64-bit OS like Windows XP Professional x64 Edition but not on a FAKE 64-bit OS like OS X 10.3 and up - NOT!
Yeah, I certainly am not making any claims about clbuttic Mac OS stability. I found it varied considerably with the version of the OS and its optimization for a particular machine. The...
Scrutinizing as ever Lefty. I raked this argument over the coals, one more time, in a...
Because obviously Photoshop can use *more* RAM under OS X than under XP x64. -- Lars T.