[Andy A.]

Any new AMD desktop processor will use a 939 socket. It is the best option if you expect to ever upgrade the processor. Additionally, the newer and more powerful motherboards that support AMD processors are probably going to all use a 939 socket.

Which ever you use, it is important that both the CPU and Motherboard match. This is important because some sockets are visually identical, and a mismatch can cause permanent damage to the CPU, motherboard or both.

-Andy A.