I know the prices between the 2 are a bit different but I'm just trying to figure out which card will benefit me in the long run, bassically the price over performance ratio. I would also like to know which card would benefit me most once I run XFire as well as SLI in the future.
i'd go with SLi. dispite, 4870 or 285 they are no match. nvidia has more mature driver support and ATI has very little. i'm no Nvidia fanboy because i'm using ATI card myself, but if you r going to do 2 video card solution, you would be better off with SLI than xfire.
Unfortunately, the long run doesn't apply much with graphics cards.
The gtx285 is clearly faster, and a lot more expensive. If you bought one a few months ago it might have been a decent buy 'in the long run'.
Now its quite likely to be beaten by a new card within 2-3 months, and will probably halve in price because of that. For that reason its a bad buy in the long run at its current price.
Same could be said about any graphics card, but the very highest end tend to have a much shorter lifespan. They just aren't worth it unless money truly is no object, and if you need to ask whether or not its worth it in the long run, it probably isn't.