Adobe has released the Creative Suite 5, which includes new version of 14 products, 64-bit support for Intel Macs and GPU-accelerated performances.
“Several CS5 apps have advanced technologically to keep pace with advances in Apple hardware. Photoshop, Premiere Pro, and After Effects are now 64-bit native to take better advantage of the increased memory built into the Mac’s new hardware, and Premiere Pro is now better optimized for multi-core Intel Macs. Improvements in Photoshop’s OpenGL engine will make the new version faster and more responsive, as well.
As Adobe announced last year, CS5 will run only on Intel Macs and with only the most recent operating systems, such as 10.5.7 (Leopard) or Snow Leopard (10.6). In addition to native 64-bit support, Adobe has introduced the Mercury Playback Engine to Premiere Pro, its flagship video editing app.
The Mercury Playback Engine speeds up processing and rendering so editors can work on large, complex projects without delays. The key to this improvement is GPU (Graphics Processing Unit) acceleration and the full use of all processing cores. While traditionally apps use the computer’s CPU (Central Processing Unit) for performance, the Mercury Playback Engine directly accesses Nvidia graphics cards for performance boosts. Premiere Pro and the Production Premium apps require either OS X 10.5.7 or OS X 10.6.3 for GPU-accelerated performance.”
So yes, Photoshop is 64-bit now. You can take a look at the official CS5 page here, together with packages details and pricing.