I love my SLI 470's. But you need good case airflow, plus a board w/at least one empty space in between the cards (two is better) otherwise they'll run very warm/loud. They do tear up anything at 1920 resolution very nicely. They're considerably faster than a stock 580, for a lot less money (considering you already have one). In fact, with my cards at their max OC (855/1810) they perform within 12% of stock 580's in SLI.
Originally Posted by Wulfgar
What do you mean dated ?
I played LCS with everything maxed (except shadows at high instead of very high) at 1080p and The Witcher 2 everything max/on (except ubersampling which kills even a GTX 580) without any issues whatsoever. Solid 45-50FPS average with a minimum of 35.
Maybe you should consider overclocking since both of those games don't make proper use of SLI.
Otherwise you could upgrade to a GTX 580 I guess but Kepler is right around the corner so it might not be worth it atm.
Both those games make proper use of SLI. The problem is that they have very high CPU demands (at least at certain parts), + SLI adds some CPU overhead vs. single card.
So when you add another card, FPS goes up, but this also increases the likelihood of CPU-bottlenecking on any given frame ... which in turns makes scaling not so great.Edited by brettjv - 6/14/11 at 10:16am