Originally Posted by TheGrak
Those 580 geforce cards are nice. The 590 has 3gbs of vram.
The high end quadro cards only advantage is the larger vram.
Take a look at the gpu capabilities:
The price on the quadro 6000 is $4k, and you get 448 stream processors.
The price on the 590 is $750, and you get 1024 processor cores.
Unless the quadro's processors are more than twice as fast as the 590s, I'd say two sli'd 590s would be a better gpu setup than one quadro, unless your scene is larger than 3 gbs.
^ That's the truth. Don't think that your sli'd cards are sharing memory.
Unless you are loading scenes that are massively huge onto the gpus it doesn't make sense to buy a high end quadro. (And that's coming from a quadro 4000 owner and user).
The 590 actually isn't a good choice--it's technically two cards put together, Max can't take advantage of both (since it's like SLI) and so it's better to get a GTX 580 which has a faster processor, along with a 3GB version.