amd hd6870 bottleneck

[Bananero]

hi i have an amd hd6870 whit cpu athlon x2 4450e but i want to know how measure the bottleneck there is a tool for thath?

 

[Starcruiser]

This I find useful. It tells you not only how your overall and individual performance is, but how your individual performance is compared to others that have the same parts: http://www.userbenchmark.com/software