Crossfire X 4890 + 4870

[e-geek]

Just got a cheap Asus dark knight 4870 for my 2nd pc so thought i would test it in crossfire X with my 4890.
Originally it overclocked the 4870 to 4890 speeds, but i have an o/c version of the 4890 so it just couldnt handle that speed.

3dmark06 - just over 19k with 4890 @ 930/1100
4890 + 4870 - 24.5k with stock clocks

I am going to see how high i can push the 4870 later tonight and see what kind of score i can pump out

Btw this is on an I7 @ 3.8ghz.

 

[shansoft]

clock to clock on with 4870 and 4890, 4890 still surpass 4870...
they aint exact the same chip..

 

[vjcsmoke]

The 4870 obviously is slower than the 4890 so it is gonna be the weak link. But it's two video cards so it should still be pretty strong. The question is, how much better will it be than 4870x2?