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The Mac Pro is a workstation computer manufactured by Apple Inc.. The first Mac Pro was based on dual Dual-core Xeon Woodcrest processors and formally announced on August 7, 2006 at WWDC. The current model Mac Pro was announced on December 19, 2013 and features Intel Xeon processors and AMD FirePro Graphics.

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Impossible to downgrade Mac Pro's operating system to original system

You do need Snow Leapord or Tiger and below to run PowerPC apps. That is how I also got into trouble, but in my case, my iMac is no longer usable. I bought a spring 2008 iMAC that came with the Tiger …
George McGinn's user avatar