building a computer to run Maya
information on video cards, processors, etc.

Here is some information on what you need to build a computer that will run Maya well, and not cost too much. We're trying for a balance of cost and performance here.

Video Cards
This is one of the most important things to consider, since Maya is a demanding 3D graphics program.
We'll be considering cards from nVidia, since it is generally believed they're drivers are more stable for Maya. Let's compare the higher-end gaming cards with the lower-end workstation cards.

card Quadro FX 1300 Quadro FX 1400 Quadro FX Go 1400 GeForce 6600 GeForce 6600 GT GeForce 6800 XT GeForce 6800 GeForce 6800GT GeForce 6800 Ultra GeForce 7800 GTX  
price $300 $600           $369      
memory size 128 MB 128 MB 256 MB 128 or 256 MB 128 MB   128 MB 256 MB 256 or 512 MB    
memory interface 256-bit 256-bit 256-bit 128-bit 128-bit 256-bit 256-bit 256-bit 256-bit 256-bit  
memory type DDR DDR DDR3 DDR GDDR3 DDR DDR GDDR3 GDDR3 GDDR3  
memory bandwidth 17.6 GB/sec. 19.2 GB/sec. 19.2 GB/sec.   16.0 GB/sec.(14.4 on AGP version)       35.2 GB/sec. 38.4 GB/sec.  
display connectors DVI-I+DVI-I+Stereo DVI-I+DVI-I+Stereo DVI, VGA & TVout                
shader model 2.0 3.0 3.0 3.0 3.0 3.0 3.0 3.0 3.0 3.0  
core clock 400 MHz     300 MHz 500   325 MHz 350 MHz 400 MHz 430 MHz  
memory clock       550 MHz 1000 (900 on AGP version)   700 MHz 1000 MHz 1100 MHz 1200 MHz  
pixel pipelines 8 8   8 8   12 16 16 24  
number of ROPs       4 4   16 16 16 16  
vertex processors       3 3   5 6 6 8  

"The GeForce 6800 continues to use the 130 nanometer manufacturing process, introduced with the GeForce FX. Its Quadro equivalents are the Quadro FX 4000 (AGP) and the Quadro FX 3400, 4400 and 4400g (both PCI Express)."

"The other four variants of the 6800 Ultra are the 6800 Ultra Extreme Edition, which is just an overclocked 6800 Ultra (450/1200), and is also in extreme lack of availability, the 6800 GT (which is clocked lower and only needs a single PSU connector), the 6800 (which only has 12 pixel-processing units) and the 6800 LE, which is an OEM only product. These versions are currently available in AGP and PCI Express form."

"Many people think that the 6800 GT version is the best value for money. It is functionally the same as the 6800 Ultra but is clocked lower and is less expensive. The 6800 GT also generally ships with a one slot cooling solution while 6800 Ultra cards generally block the adjacent PCI slot, although this is up to the manufacturer."

source