AMD Phenom 840 vs Core 2 Quad Q6400

You either have to have an amd or intel motherboard, you can't choose which one to put into 1 motherboard. But the 840 is the best performer out of the 2.

i have a mobo for each of them, also percentage wise how much faster is the 840?

are u building a new pc ..if then dont go with anyone of those instead go with i5 2400..
amd phenom wins but at this stage i would not prefer these processors if u are going to buy a new one because they are outdated..

Best answer selected by ultra619.