Domdtxdissar's 10 sec 313 ms y-cruncher - Pi-1b run with Ryzen 9 9950X

[SparkysAdventure]

Interesting, do you get any performance benefit to turning off SMT?

[Domdtxdissar]

kinda, in a roundabout way.. Performance in 1B is very close between SMT disable/enabled, but disabled let PBO run higher clocks (less heat). SMT disable is worse in all larger datasizes tho

[I.nfraR.ed]

In my testing SMT off needed +200MHz to catch up SMT on with static OC. I only tested it briefly as my 9950X had awful second ccd, so I might not remember correctly.

PS: Looking at my saved results

16/16 5500/2nd ccd unknown: 10.301

16/32 5300/5100: 10.316

so roughly the same score, 200MHz difference, but I don't know the frequency of the second ccd in the 16/16 case, it could not do above 5150 on chiller.

Edited December 16, 2024 by I.nfraR.ed