AMD Athlon The CPU has several interfaces

Q: How many interfaces does AMD Athlon the CPU have?

A: In September 2003, when the first launch of Athlon 64, there are two versions, respectively, socket 940 and Socket 754, this June also introduced a socket 939. The future mainstream is socket 754 and 939, and socket 940 is for Opteron only.

The Socket939 and socket 940 Interface Athlon64 CPU supports dual-channel memory, where the dual channel of the socket 940 (Sledgehammer Core) architecture must use a memory module that provides checksums. The Socket754 schema is all single channel memory.