Graphics Card Options for Mac Pro Workstations
Here's a quick overview of the three graphics accelerator options for the Mac Pro workstations.
The machine ships by default with an NVIDIA GeForce 7300 GT with 256MB RAM - not a particularly impressive graphics card, but more than enough for general design and print-based work that doesn't use the 3D capabilities of the card too heavily. The GeForce 7300 GT is has one single-link and one dual-link DVI ports, so it can drive up to one 30" LCD and one 23-24" LCD at full resolution. It can't drive two 30" LCDs at their full rated resolution. 3DS Max runs acceptably with the 7300 GT under either Direct3D or OpenGL acceleration, however in AutoCAD 2007, with hardware acceleration enabled there is an unacceptable level of graphical glitches in the screen redraw.
The next step up from the 7300 GT is the ATI Radeon X1900 XT with 512MB RAM. Whilst the X1900 has 512MB VRAM, it is still a gaming-optimised graphics accelerator as determined by Autodesk. With this card, even complex textured models in 3DS Max redraw quickly and smoothly. The screen redraw with AutoCAD is still problematic in areas with hardware acceleration turned on, however using software rendering it's still quite fast and redraws perfectly. The majority of other 3D applications that you are likely to encounter will also run quite well with this card. At around $400 more than the GeForce 7300 GT, it represents a good value-for-money upgrade providing a solid increase in graphics performance. This card also has two dual-link DVI ports, so it is fully capable of driving two 30" LCDs at their full native resolution.
The top level graphics card is the NVIDIA Quadro FX 4500. The Quadro line of cards from NVIDIA are their professional-level, workstation spec graphics cards - optimised for engineering, scientific visualisation and complex 3D. The driver support for these cards is truly one step above the consumer level GeForce cards and the FX 4500 is fully supported and qualified for AutoCAD 2007 with full hardware acceleration enabled. There are no known problems with screen redraw in AutoCAD, nor with any other CAD or 3D applications. With an upgrade price of around $2500 over the GeForce 7300 GT, I strongly recommend this card only for machines that are going to be doing any kind of serious CAD work, especially with AutoCAD. This card also has two dual-link DVI ports, so can drive two 30" LCDs as well.
