In addition, the 64-bit versions of Intel and AMD x86 chips incorporate more data storage slots called registers that can improve performance.īut Nack took pains to say that moving to 64 bits, while useful, isn't like flipping a switch that doubles performance.īased on Adobe's preliminary testing, the 64-bit version of Photoshop CS4 will give a performance kick of about 8 percent to 12 percent compared with the 32-bit version, Nack said. What does 64 bits get you, anyway? Chiefly, an easier way for a processor and software to use more than 4GB of memory. (Read the "What derailed the 64-bit train?" section below if you want more details on why Adobe concluded it had to change plans.) But it does have an impact on developers."
"We respect Apple's need to balance their resources and make decisions right for that platform.
"We're not going to ship 64-bit native for Mac with CS4," Nack said. Adobe Systems has shared the first scrap of information about its next version of Photoshop, CS4, and it's a doozy: there will be a 64-bit version of the photo-editing software, but only for Windows and not for Mac OS X.Īdobe generally keeps features in the Windows and Mac versions at a level of parity, but that wasn't possible this time around because of a change Apple made last year to the Mac's programming underpinnings, John Nack, Adobe's product manager for Photoshop, said in an interview.
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