For graphics, the 2013 Mac Pro has dual graphics chips from AMD's FirePro range. It hasn't said which cards are included, but from the quoted specs they appear to be the same chips as found in AMD's top-of-the-line FirePro W9000 graphics card - which feature 6GB of graphics RAM (and ECC RAM at that), a 384-bit memory interface and 264GBps memory bandwidth.
Apple says that the cards will allow you to do VFX and editing work on full-res 4K video - and output the three 4K displays at once. Unlike the PC-based FirePro W9000 though, there are no DisplayPorts on the 2013 Mac Pro - instead the three of the six Thunderbolt 2 ports can be used as mini-DisplayPort outputs that output to DisplayPort monitors using an adapter, as with Apple's MacBook Pro and iMac.
There's also an HDMI output on the back of the new Mac Pro, along with four USB 3.0 ports and two gigabit ethernet. The Thunderbolt 2 ports offer up to 20GBps of data transfer, and can also be used to attach devices from PCI arrays to external RAID storage devices. Apple says that the all-black exterior lights up to show you these ports when you rotate the Mac Pro towards you.
Other features include 801.11ac wireless and Bluetooth 4.0.
New Mac Pro 2013 design
Apple's completely redesigned Mac Pro workstation is about an eighth of the size of previous model and features a design that has already been compared to a bin (or Dusty Bin in a Daft Punk helmet, according to Jonathan Barnbrook on Twitter), something Dyson would create, and to an air-conditioning unit. This last comparison is more accurate, as the design of the new Mac Pro is all about getting airflow through to its top-spec components.
For the new Mac Pro, Apple has arranged all of the components around a central wind tunnel with a single big fan, which it has engineered to keep everything cool while apparently keeping noise to a minimum. The full chassis measures about 25cm tall and 16cm in diameter.
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