AM3 AM3+ AM4 socket

[okoo]

Can a AM3 cpu fit on a AM3+ socket. And can a AM3+ cpu fit on the AM4 socket. I hear somewhere that am2 plus can go on am3 idk if it was the same with am3 plus onto am4

 

[superninja12]

am3+ doesnt fit in am4

 

[Snipergod87]

AM3 can go into AM3+, AMD 3+ cannot go into AM3 or AM4.

 

[junii]

Nothing but ryzen and cheap non ryzen apus can fit on the am4 socket. But AM3 can fit onto AM3+ but AM3+ can't fit into AM3 as there is a extra pin on it. So basically + can't go into non + motherboards. BUT non + can go into + motherboards.

 

[okoo]

Thank you junii.

 

[Eximo]

+1

AMD has been pretty good about cross socket compatibility, but AM4 uses DDR4, and they offer no support for DDR3 so the old chips will not work. They did take some of their older APUs and make them available on AM4 though, the 9000 series of APUs (Not the FX-9000 CPUs)

AM2 -> AM2+ and AM2+ -> AM3 was pretty common, but with caveats. Usually the HyperTransport speed would be lower the older you went back. So while you could drop AM3 cpus into AM2+ sockets, they would be slightly slower. And there was a big distinction between CPUs that supported DDR2 vs DDR3, so they released AM2+ compatible versions of AM3 chips to fill the gap.