I'm just getting into BTC mining, and need to upgrade my video card.
My current PC is a Core i7 930 @ 4.0Ghz, 12GB RAM, SSD, and a GTX480 (factory water cooled).
My PSU is a Corsair HX1000, so no worries there.
I was originally planning to upgrade to a 7950 with a waterblock, which will run me just under $600 and from what I've read should net about 600Mh/s when overclocked and tweaked.
Today, I saw that sunbreak is selling a bunch of new 6950s for ~$220 each plus shipping. He claims they will run at 360-400Mh/s each, for a net of roughly 700-800.
Later today, I ran across a post reminding me that a 5970 will rock about 750 Mh/s. I can get one used for ~$450, and add a water block for about $120 if I choose.
I'm so confused! lol
Can anyone offer advice? Am I better off mining with 1x7950, 2x6950, or 1x5970?
My power costs are roughly $0.12/Kwh, and my machine stays on 24/7 already.
I have 2 PCIe slots (1 currently open), so I could leave my GTX480 in there and install the 'mining' card, if that's an option.
Any advice appreciated!