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I was thinking about getting a 670/680, but since I have a 570 already I'm now thinking of grabbing another and SLI-ing them. What's the requirement for having SLI compatible cards? I've got a Gigabyte GTX570 (link) and I was looking at getting an EVGA one (link). Same mem, same model and clock speeds close enough for me to underclock the GB one. I've also got a board with 2 PCI-E 3.0 16x slots (asrock z77 extreme4) and a decent PSU. Anything else I need/should know?
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May 16, 2012 17:59
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movax posted:It may be worth investigating 2x 570 performance vs. single 670 performance, and seeing how much you can sell your 570 for. I just read the SLI bit in the OP. Just to clarify, they need the same model (ie GF110) only? Memory/clock speed doesn't affect compatibility?
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May 17, 2012 09:56
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Biggest human being Ever posted:Yes but if you use two cards with different clock speed/amount of memory then the faster card will work like the slower one, extra memory will remain unused and clock speeds will be lowered to match the slower card. That's fine. Couldn't you overclock both cards though?
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May 17, 2012 11:12
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Factory Factory posted:BFE's mistaken. SLI require both the same GPU (e.g. GF110), the same number of active SMs/SMXs (i.e. CUDA cores) and ROPs, the same memory bus bitwidth, and the same amount of memory. That's incredibly useful, thanks. One thing, what are ROPs? edit: nevermind, got it. GTX570s seems pretty homogeous, and the cards I was looking at all match up. Last thing, would there be any problems using SLId GTX570s for a 120hz 1440p display (those korean ones)? 4 Day Weekend fucked around with this message at 16:57 on May 17, 2012 |
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May 17, 2012 16:51
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