The big deal is CS5, the next-next version of Photoshop. (Parallels doesn’t support 64-bit OSes.) The Cocoa Rewrite It’ll be particularly interesting to see benchmarks comparing 64-bit Photoshop on Mac OS X using VMware against the native 32-bit Mac version. The uncomfortable truth is that the fastest way to run Photoshop CS4 on a Mac will be to run it under Windows. (If anyone can find market share information regarding 64-bit Vista, please let me know.)īut faster is faster, and even a 10 percent gain is important to serious Photoshop users. And as far as I can tell, the vast majority of Windows users use the 32-bit version. It’s also the case that unlike Leopard, which is a single OS that can simultaneously run both 32- and 64-bit apps natively, Windows Vista comes in wholly separate 32- and 64-bit versions. You probably don’t have images like that. Keep in mind that a Canon 1Ds Mark III - which sells at Amazon for $8,000 - generates 21 megapixel images. But in cases involving massive data sets - those requiring more than 4 GB of memory (the 32-bit limit) - the speedup can be an entire order of magnitude:įor example, opening a 3.75 gigapixel image on a 4-core machine According to Adobe’s John Nack, in most cases, for the vast majority of real-world files, Photoshop in 64-bit mode will be “around 8–12 percent” faster.
To a non-programmer, “64-bit” perhaps sounds twice as fast as “32-bit”, but that’s not how it works or what it means. The first is that this is not, in and of itself, that big a deal, at least for the vast majority of Photoshop users. The $64,000 Question Thursday, 3 April 2008Ī few various observations and comments regarding Adobe’s announcement that Photoshop CS4 will be available in a 64-bit version for Windows, but will only be 32-bit for Mac OS X.
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