im upgrading soon! and was wondering what will give me better performance overall? 2x 5750's or a single 6870. I play at 1680 x 1050. I plan on building this rig to play future shooters and mmos (BF3, GW2, SWTOR).
side note i might upgrade monitors and play at higher resolution's but for now im stuck at 1680 x 1050! thank for the help
The two options will give you almost the same performance, point is with one 6870 you could add a new one later on (like Yummerzzz said) and experience some great performance at a not very expensive cost (more so if you will upgrade your monitors), so I would go for the 6870.
edit. Check this graph: http://www.guru3d.com/article/radeon-hd-6850-6870-revie... - One 5750 is 24 fps and the 6870 is 46 fps, now thats close to twice the performance of a single 5750, adding one in crossfire and being very optimistic it would double the performance (it would not, but would be close), so you would end with the performance of a single 6870, like I said, get the 6870.