03.04.2008 22:35 Uhr, Quelle: Hardmac.com

Photoshop CS4 only 64-bit for Windows

On his blog, John Nack of Adobe comments on the 64-bit compatibility of Lightroom and speaks of the upcoming CS4. His words will certainly cause a big controversy. It states that the next version of this software will be compatible with 64-bit machines, but only under Windows. To justify this difference in treatment, he explained that the CS suite is still developed in Carbon, and that Apple had, suddenly, decided at the last WWDC not to develop 64-bit version of these libraries. Adobe will therefore need a great deal of work to rewrite Photoshop under Cocoa and subsequently offer 64-bit compatibility of its software, which they will include with CS5. To add salt to the wound, Nack indicates that a 64-bit version provides a performance gain of between 8 and 12%, but much more under certain conditions. Indeed, the 64-bit addressing allows software mainly to exceed the threshold of 4 GB

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