4890 crossfire vs 5870

[smeghead666]

i know its early days yet but i was wondering if anyone can knows of any reviews that compare 2 ATI 4890's against one 5870.

all i can seem to find are things like 2 5870's vs 1 4890 / 4870X2 etc...
i would have thorght considering the similar prices they would be more realistic to compare than 2 5xxx cards (wish i could afford though lol)

thanks

 

[smeghead666]

cheres dude

my deciding factior now between the two would be i would put a pretty heafty overclock (if i can on the 4890's) but then the 5870 has DirectX 11.

speed vs DirectX 11
any thoughts?

 

[smeghead666]

well thanks for your inputs, and i think i may end up going with a 5870...but time will tell, i have a month to decide.

the 2 4890's would prefrably be: http://www.overclockers.co.uk/showproduct.php?prodid=GX-209-AS as i have read that they overclock realy well due to ASUS' redesign.

is there any chance that there will be versions of the 5870 that overclock better than current reveiws that iv read? (around +40MHz core)