M1 Ultra About 3x Bigger Than AMD's Ryzen CPUs

Re:M1 Ultra About 3x Bigger Than AMD's Ryzen CPUs by jagger27 on Sunday March 20, 2022 @04:07PM (#30746124)

It's a slightly better comparison, however Ryzen 6000 is on N6 (which is an optimized N7 process), whereas M1 Max is on N5. N5 is considerably denser than N6.

AMD's next round of APUs on 5 nm will offer a better die area comparison.

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Re:M1 Ultra About 3x Bigger Than AMD's Ryzen CPUs by opisthenar84 on Sunday March 20, 2022 @04:35PM (#30746354)

I remember reading that at 5nm, electron tunnelling through transistor gates would be a major problem. What happened to that?

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Re:M1 Ultra About 3x Bigger Than AMD's Ryzen CPUs by aunty_helen on Sunday March 20, 2022 @04:54PM (#30746514)

5nm doesn’t mean anything is actually 5nm. It’s the “5nm node”

Marketing dept has trumped physics.

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Re:M1 Ultra About 3x Bigger Than AMD's Ryzen CPUs by imtringued on Monday March 21, 2022 @03:16AM (#30751155)

That would be the case if 5nm didn't refer to a random feature of a reference planar transistor that is only used to chronologically name the process according to its mathematically equivalent density..

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Re:M1 Ultra About 3x Bigger Than AMD's Ryzen CPUs by ace2358 on Sunday March 20, 2022 @04:38PM (#30746385)

I think the do funky stuff with the 3D or 2.5D geometry of the gate so that the surface area (between transistors) is larger for a smaller footprint.

Someone correct me if I’m wrong!

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Re:M1 Ultra About 3x Bigger Than AMD's Ryzen CPUs by jagger27 on Sunday March 20, 2022 @06:54PM (#30747613)

Yes, that tech is called FinFET and it has been in use for many years. The new hot thing is GAAFET (Gate-all-around FET).

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