[wtallis]

Early indications are that Zen 4c actually requires significantly higher voltage for the same clock speed as plain Zen 4 cores (though still a lower voltage than Zen 4 at speeds far beyond the reach of Zen 4c). All the savings AMD gets by targeting ~3.5GHz peak rather than 5+ GHz has been put into shrinking the core area: https://zhuanlan.zhihu.com/p/653961282

[deagle50]

It seems 4c requires .1v more through most of the clock speed range. It's purely a cost and density play.

[wtallis]

> It seems 4c requires .1v more through most of the clock speed range.

It doesn't look anything like a constant offset to me: https://pic2.zhimg.com/v2-3246ea92d494fffe1ea26f30bc9d9d79_b...

[WithinReason]

That seems like the same voltage at about 1 Ghz less clock, which makes sense.

[Klinky]

interesting, I wonder why. I guess it's saving via current reductions despite higher vcore.