Keep in mind that more than 3 GPU's will not work well with Eyefinity (yet).
So:
- 5970 CFX
- Tri-fire 5870
- Tri-fire 5970 + 5870
Will not work well.. Search on the forum for more info..
Single 5970 could be a good choice when overclocked (900-1000 MHz), but probably only on water..
5870 CFX on air would overclock better and, with stock clocks, is faster than single 5970.
MW2 @ 5040x1600 with 5970 stock, i had to tone down the eyecandy a little but it was well playable.
DIRT2 with all bells and whistles plays OK on the stock 5970.
I really would like to switch to Tri-fire 5970 + 5870 on water just to get METRO2033 going with DX11, but this combo is NOT scaling well with Eyefinity..
*EDIT* i just saw that you want to play 6 Mpixel while i play @ 8 Mpixel.. It think single 5970 for the games you are playing is good to go.. (cheapest) 5870 CFX would be ideal just a tad more expensive.. Can keep em stock!! And add a 3rd or 4th later on!
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