Best graphics card upgrade for Mac Pro (late 2011)

For a cool $3500, I'd wait for a new option.

Apparently, I only thought nVidia Quadro cards were expensive!

Do you know about the ATI 6970, how can i supply it.. cause they need 1 6-pin PCI-E and 1 8-Pin PCI-E to supply this card.. how can I do... I bought the card and now I'm very frustated about this point !

Second question.. is possible keep the 5770 running Mac OS and Install the 6970 to run Windons only ??.. if it is possible, how about the power supply again... its is possible to have 2 cards with the original PowerSource of the MAC PRO 2011?

Tks !

You can get an additional power supply the size and sahpe of an optical drive, and put in the lower optical bay.

But is possible to put the both cards ??.. the voltage of a optical drive is the same of a pci-e ?

Not the optical drive, but an optical bay power supply:

http://www.newegg.com/Product/Product.aspx?Item=N82E16817101044

Without another power supply, there is a way to provide power using hard drive power connectors:

http://www.hardmac.com/articles/331/page1

I know this is a bit late... I found out why my Mac Pro runs slow. I was doing the samething you were running Parallels. The problem is that your running 2 different OS at the same time, then on top of that several programs such as a game, 2 OS, parallels, OS X and what ever else your running.

I no longer use Parallels. WIndows takes up 32 gigs of hard drive space. I switched and started to use bootcamp, I find bootcamp to run things much smoother and faster. Plus I added 12 TB to the computer each HD has 3 TB to it. I run one OS on one and the other OS on the other. All I do is boot into one of them and now I am playing some of the best games on the market without it running slow... The other 2 HD I use for business and the other for OS X entertainment... I just boot into which ever one I want to use.

I had the same setup as you and things just werent working to well... So I changed all that and now I am much happier. The reason I didicated one HD for windows is cause I dont want to accidently download a virus and it affect that entire HD. Cause then I have to a erase reinstall which means I lose allot if I forgot to backup something. I also have other reasons why I more than one HD... This was just my experience and how I got around all the mumbo jumbo...