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If your production process and binning doesn't create enough supply for these parts, you only sell them to OEMs, because they can silently discontinue, or limit availability of these models when parts can not be found.

However it'll be a PR disaster if the parts have spotty availability in retailers, and will cause wild rumors to spread, from "AMD doesn't want you to have this CPU" to "AMD is going bankrupt".

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Sure. But since AMD has been producing these CPUs for a while, their yield should be good by now, shouldn't it?

Anyway, I hear some people saying you can just buy the 105W "X" variant and limit the power usage to 65W in the BIOS. Does it really give the same result, also in idle power consumption?

It's not a yield issue if your product is only a byproduct of another one.

I'm running my 5800x in 45w Eco mode. It does not improve idle power from what I can see. It only limits the max it can draw.

I'd imagine all of the low power binned chiplets are going into EPYC and sold at multiples of desktop prices.

Low power, stable low frequency and low power, peaking high frequency make different bins. The former goes to servers and latter to enthusiast laptops.

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