The same and yet different. Intel Core i5-12400 duel (H0 vs. C0)

We have a shocking revelation! And now, seriously. Different Core i5-12400 processor steppings differ not only in S-Spec code, but also in behavior in practice. Some of the expectations were confirmed, some were not. More importantly, you can choose the more suitable of the two options. But the best part is that everyone can evaluate the “better” variant differently. The differences across these processors must be negligible? No way…

Average CPU power draw

We measure the current directly on the 12-volt cables that power the processor








Comments (9) Add comment

  1. All of this is meaningless if you don’t actually delid the cpus to prove your point.

  2. Conclusion:

    “More powerful one, and it can be so titled at gains usually up to 1 %, is the stepping C0, the one with the larger core (and S-Spec code SRL5Y).”

    This must be an typo “SRL5Y”

    MaGee

  3. Hi. I am little confused. Which one is better with temps? I have a 12400, s-spec SRL5Y. Is this the one with a larger or a shorter die? Thanks.

    1. The variant with S-Spec code SRL5Y (stepping H0, as it is also referred to in the charts) has a smaller, natively 6-core chip and its cooling is a bit worse compared to stepping C0 (SRL4V). But again, you get better power draw at lower load and at idle. 🙂

      1. Thanks for the answer. It is happening again with the 13400/F. It will use 2 different dies. A RPL one and an ADL one. Cheers.

    1. According to CPU World, it should indeed be a C0 processor. https://www.cpu-world.com/sspec/SR/SRL4W.html

      About the year manufactured: some processors have really long trailing production, the Gen12 Core i5s could be one of these. It’s even possible Intel prolonged production due to the EOLing of the 13th generation (since it is believed the gen12 SKUs are free of the voltage/degradation issues).

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