http://discussions.apple.com/messageview.jspa?messageID=12296219&stqc=true
MHz matter, and so too does RAM.
This article, and then browse how to choose Mac Pro, benchmarks etc on site:
http://macperformanceguide.com/blog/2010/20100905_HallofFameShame--macpro.html
http://macperformanceguide.com/Reviews-MacProWestmere-CoresExplained.html
There are always good buys from Apple Specials, from $2100 and up, just be careful or totally avoid any of the 8-core / dual processor models.
http://store.apple.com/us/browse/home/specialdeals/mac/mac_pro
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Best Photoshop For Mac Pro
Sep 29, 2010 9:36 AM
Best Photoshop For Macbook Air
Adobe Photoshop is the reference app when it comes to image editing and many years at the top haven’t dimmed its shine. It’s also a serious app: Photoshop has a steep learning curve and will take practice, often over many years, to get to grips with. Luminar has been ranked among the best photo editing software for Mac by CleverFiles and Photolemur, among others. What could be improved: Mobile users might consider a mobile-specific app for an on-the-go photo editor, since Luminar is desktop only.