5870 Crossfire Woes
I recently acquired a second 5870 for my pc, so I now have 2 (along with the rest of my pc in my sig). Basically, I've noticed absolutely no gains with the second card.
Metro 2033 actually runs worse, all of the crysis series are the same, GTAIV is unplayable now (stuttering), Dirt3, Dirt2, NFS:Shift2, Witcher 2, basically every game I have.
They run more or less the same as when I had just the single card. So I'm thinking the crossfire isn't set up right. But GPU-Z shows both of the cards, and GTAIV recognized the 2gb of memory.
CCC is as useless as ever. So I'm really at a loss here as to why I've gained nothing by adding a second 5870. Just the single one struggled a bit on the highest settings in some games (metro2033, witcher2), but just barely. Like 20fps or so, a second card should offer some marginal increase in performance. Friend has the same set-up (but he uses eyefninity) and says he noticed a pretty big difference.
I reinstalled CCC, 11.4, twice, and still no difference. Also installed the xfire profiles for games that were on AMD's site. Is there anything I can do to check and make sure xfire is indeed working? Cause right now I feel like I wasted a rather large chunk of money...