4870 = ? 9600gt's

The 4870 gets approximately double the frame rate, so you could say it is doubly as powerful. However, SLI is inefficient, so you would probably need three in order to get the same frame rates. 4-5 is way off.
 
The 4870 gets approximately double the frame rate, so you could say it is doubly as powerful. However, SLI is inefficient, so you would probably need three in order to get the same frame rates. 4-5 is way off.

How is 4 "way off" 3? :P
 
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