Hardware

5316 readers

5 users here now

This is a community dedicated to the hardware aspect of technology, from PC parts, to gadgets, to servers, to industrial control equipment, to semiconductors.

Rules:

Posts must be relevant to electronic hardware
No NSFW content
No hate speech, bigotry, etc

founded 5 years ago

MODERATORS

[email protected]

AMD Zen 4c Not an E-core (www.techpowerup.com)

submitted 2 years ago by [email protected] to c/[email protected]

3 comments fedilink hide all child comments

"35% Smaller than Zen 4, but with Identical IPC"

It is very impressive to keep all of Zen 4's functionality and only sacrifice frequency and L3 for almost double the core density. I hope They will release some consumer products with this in the future like a 7970x with 8 Zen4 and 16 Zen4c cores.

With the official announcement it confirmed the previous leaks, for a more detailed breakdown see: https://www.semianalysis.com/p/zen-4c-amds-response-to-hyperscale

you are viewing a single comment's thread
view the rest of the comments

[–] [email protected] 1 points 2 years ago (1 children)

Did I read that right...128 cores / 256 threads. That's bonkers. I guess those are only useful in extremely parallel workloads, or you'll be hitting https://en.wikipedia.org/wiki/Amdahl%27s_law limitations? I'm not a CS grad, so take this with a pinch of salt.

[–] [email protected] 1 points 2 years ago (1 children)

Yeah, at that thread count only a few workstation applications (maybe video encoding and code compilation) scale well.

The c in 4c is supposedly referring to cloud where it's possible to run 128 tiny independent VMs on a chip like that. Being independent means those should scale linearly aside from the shared memory and IO bandwidth.

[–] [email protected] 1 points 2 years ago

Those numbers are just so wild. Very impressive :)