As I now have the data (to be taken with a pinch of salt):
Socket old |
Cores/threads old |
Socket new |
Code name |
Cores new |
Threads new |
Use |
RAM prediction |
AM1/FP3 |
2-4 (Sempron)
4 (Athlon) |
FM4/FP4 |
Stoney Ridge |
2 |
4 |
'essential' |
two slots
dual channel |
FM2+ |
2 A4 & A6
4 A8 & A10 |
FM4 |
Bristol Ridge |
2-4 |
4-8 |
'mainstream' |
two to four slots
dual channel |
AM3+ |
4 FX-4xxx
6 FX-6xxx
8 FX-8xxx |
FM4 |
Summit Ridge |
8-16 |
16-32 |
'enthusiast' |
four to eight slots
quad channel |
C32 |
up to 2x 4-8 |
FM4 |
Unknown yet Ridge |
16-32 per cpu |
32-64 per cpu |
'light server' |
8 to 16 slots per cpu
quad channel |
G34 |
up to 4x 4-16 |
FM4 |
Unknown yet Ridge |
16-32 per cpu |
32-64 per cpu |
'heavy server' |
16 slots per cpu
octa channel |
The real progress is in the server and enthusiast user groups, the question is e.g. whether a two-core Zen chip needs eight-channel RAM. Sixteen RAM slots do not fit an iTX board either.