from Hacker News

AMD starts bringing its own tiny CPU cores to new Ryzen 7040 laptop chips

by YakBizzarro on 11/2/23, 7:39 PM with 42 comments

• by brucethemoose2 on 11/2/23, 7:41 PM

  Well thats the interesting thing. They're not really "tiny," they're just Zen 4 not optimized for crazy clockspeeds.

• by hajile on 11/3/23, 12:35 AM

  They need to ship these in a better SKU. 2 P-core and 4 E-core just isn't that great in today's market. The lousy 4 CU iGPU is even worse.

  At a minimum, I'd like to see 4 P-cores and 4 E-cores plus 8 CU (preferably 16-24 CU).

• by jauntywundrkind on 11/3/23, 2:18 AM

  I didn't & don't understand why these zen 4c cores aren't everywhere? They were portrayed as a pure win in Bergamo, less cache but vastly smaller.

  Wouldn't you want that everywhere? Same perf but smaller means less cost for AMD yes? Bergamo was excused as "this is just for high density since we have existing chios for medium density" but if you are making new chips why not use the smaller but equal one?

• by saltcured on 11/2/23, 10:27 PM

  I wonder if the die pictures in the article are accurate representations of the difference.

  They surprised me, as they don't look like "adjusted layout for different process options", as the 4c variant has been previously described in the press. Instead it looks more like "chopped off entire controller or coprocessor subsystems, and also shrunk a tiny bit"...

• by mixmastamyk on 11/2/23, 9:23 PM

  How does the OS/hardware decide how to schedule tasks to P or E cores?

• by treprinum on 11/3/23, 2:22 AM

  Either give me all Zen 4 cores or all 4c cores. I don't want any Intel-inspired "multithread-winning marketing" hybrids, thank you very much! Pure 16c Zen4 or 24c 4c would be great though.