Epyc 9V74. Is it Genoa with 10 CCD's?

[unphased]

I can find no info on this. It's just a curiosity. The app I'm working on is deployed in azure on an Epyc 9V74. It got me wondering, what really is this chip?

The most sensible arrangement would be 10 CCDs with all 8 cores enabled on each CCD, but that seems ... strange as I've never seen a photo of such an Epyc configuration.

Does anyone know? Wikipedia's table just hints at there being 8 and 12 CCD configs and all configs seem to have a consistent number of enabled cores on each CCD. But we can arrive at a core count of 80 by mixing and matching a few 6-core CCDs with 8 (and even 7) core CCDs if there are 12 of them. It would be even more wild but still possible if 11 CCDs are used.

 

[TrashMaster]

I suspect your 10x ccd number is accurate because:

L3 cache:

AMD EPYC 9V74 reports that chip has 320 MB of cache. A 12 CCD chip has 384 while the 8 CCD chips have 256.

 

[unphased]

I didn't consider that. yes that cache size is basically a smoking gun in this case.

I can barely find any hits on google for this CPU model number. I feel like surely some photos exist of a 10 CCD epyc chip sans heatspreader out there. But it's mildly possible none exist on the surface web!