Base models start at $2999 and features a 3.7GHz Intel Xeon E5 with 10MB L3 cache and Turbo Boost up to 3.9GHz, 12GB (three 4GB) of 1866MHz DDR3 ECC memory, Dual AMD FirePro D300 GPUs with 2GB of GDDR5 VRAM each. Flash storage shockingly starts at just 256GB, but can be configured up to 1TB.
For connectivity there are four USB 3.0 ports, six Thunderbolt 2 ports, dual gigabit ethernet, and HDMI 1.4 UltraHD.
The top model costs $3999 and has a 3.5GHz 6-core Intel Xeon E5 with 12MB L3 cache and Turbo Boost up to 3.9GHz, 16GB (four 4GB) of 1866MHz DDR3 ECC memory, Dual AMD FirePro D500 video cards with 3GB of GDDR5 VRAM each and the same ports and internal storage as the cheaper model.
We have begun manufacturing the Mac Pro in Austin. It's the most powerful Mac ever. Orders start tomorrow. pic.twitter.com/Jrd1Gic3Ya
-- Tim Cook (@tim_cook) December 18, 2013