I've been reading this thread, along with others on similar topics for a while now. Sometimes I think I understand it all, other times I'm lost, usually because of [what I see as] conflicting information. I have a MP1,1 and I'm going to upgrade to X5365's and Yosemite, and at the moment I'm stuck with an X1900, which to confuse matters has just failed yesterday, [or so I think, I can't seem to be able to check definitively that the card and not something else has gone - any ideas?], and obviously I will be upgrading the GPU. I think I've narrowed it down to either the GTX570, probably 1280Mb, or the 660Ti, due to budget restrictions. I want it mainly for modeling, with hardware acceleration, and rendering, 3DSMax and VRay. Which card would suit me best for this purpose- some seem to say the 660, others that
Hennesie2000 I'm mainly looking at you, you seem pretty clued up.
Any help would be much appreciated.