Intel Trumps Mac for Rendering
Just so you know, when Pixar was working on The Incredibles they had an Intel based render farm running Linux. The Render Farm consisted of 1,024 Intel Xeon 2.8GHz processors inside eight RackSaver BladeRack supercomputing clusters running Pixar's RenderMan software. The Render Farm featured two terabytes of memory (RAM) and 60 terabytes of disk space. This works out to about 2 Gigs of RAM per machine which is plenty since they only work on rendering one frame at a time. Keep in mind that at 24 frames per second a 90 minute film would have around 129,600 individual frames to be rendered and rendering times for individual frames average about 5 hours but have exceeded 90 hours on occasion. For Cars they used more than three thousand, 64-bit Intel Nocona-based processors and the average render times for some scenes were about 20 hours per frame.
Industrial Light and Magic, Dreamworks, and Sony Pictures Imageworks have made the same switch around the same time to Intel based machines. Previously they pretty much all were using SGI or Sun computers and MAC has never been the choice for the top studios for rendering. For those of you who dont understand rendering, a rendering computer does not need to have a fast video card. All the rendering is done in the CPU and the results are sent out to a storage farm. The work stations the artists and animators use to create the artwork for a film need to have a fast CPU, 2 to 4 Gigs RAM and a fast video card, but it doesnt have to be a super machine.