Um... the core speed for one.
Thank you for the replies.
Yes but the single one has a mere 50 mhz slower clock speed, but look at the memory clock speed it is much faster and it has DDR4 where as the X2 uses DDR3.
So if this holds true what the above poster said about 2 3870's is not as good as one of those 3870 X2's, this leads me to beleive that crossfire is rather lame when you do the math.
In any case if anyone out there has gone from a radeon X1900XT 512mb DDR3 to a HD3870 512mb card , has it been a good improvement or rather slim?
Thanks in advance fellas.