I'm not very familiar with the Quadro or FireGL line, but I will help where I can with this. The Quadro will allow you to work with more than three layers of GPU accelerated video, GeForce handles only three, before switching over to software rendering. Consumer cards will handle rendering to keep framerates high, whereas the workstation cards will render to ignore framerate issues favoring mathematical precision. Almost all of the Quadro cards are identical to the GeForce cards, but their firmware and driver package are designed in such a way as to enable features needed almost exclusively by CAD. Most 2D programs do not use the majority of GPU power given to them as they aren't hardware intensive. GeForce and Radeon cards are often better at DirectX since their firmware and drivers are optimized for it. The workstation cards are best used in engineering applications. Both cards can do the exact same things and are supported by those software programs, they just do them differently. I suggest getting a recent card from a recent GPU line, such as the Radeon 5 or the GeForce 200. These newer cards support the OpenGL 3.2 and DirectX 10 or 11. Price may be the deciding factor, a top-of-the-line consumer card may cost less than a mid-range Quadro or FireGL card and do the same things at, depending on application, the same speed as a workstation card. Going back to your original post, those two Quadro cards are very slow and nearly identical to some GeForce 9-series cards. Neither card will so SLI but the higher-end Quadro's will. Currently, in the workstation arena, the Quadro FX 5800 is one of the best. In the consumer market, the Radeon 5970 and 5870 are dominant.
Edited by DJBPace07, 21 March 2010 - 02:26 AM.