AMD II 640 or a I5 even an I3?

That’s better ( for gaming )

Any recently available i3 effortlessly beats that Athlon II X4 640.The new Sandy Conduit Core i3 2100 outperforms the actual Phenom II X4 970, thus Athlon II is hopeless.

Possibly the old Core i3 540 had been generally far better for gaming purposes, although the actual X4 640 is more preferable for video clip editing or even Photoshop/AutoCad work with the extra cores.But individuals don’t help in terms of gaming.

http://www.anandtech.com/show/2921/2

The one I will be building now is definitely an AMD Athlon II X4 645.Regarding gaming.
I’m sure I5 is too expensive & I3 is merely dual primary.