AMD CEO: The Next Challenge Is Energy Efficiency

Post by Tepix » Wed, Feb 22, 2023, 12:27 PM UTC

bayindirh wrote: post #190

Tepix wrote: post #183

They could score a quick win for power efficiency by making the Ryzen 9 5900 and Ryzen 9 3900 12-core 65W CPUs generally available instead of only selling them to OEMs.

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".

Post by jb1991 » Wed, Feb 22, 2023, 12:27 PM UTC

unxdfa wrote: post #101

jb1991 wrote: post #99

Earlier quoted context omitted.

> The irony being that Microsoft seem to make the best Linux OS for development WSL?

Yes WSL2

Post by [deleted] » Wed, Feb 22, 2023, 12:28 PM UTC

bayindirh wrote: post #190

Tepix wrote: post #183

They could score a quick win for power efficiency by making the Ryzen 9 5900 and Ryzen 9 3900 12-core 65W CPUs generally available instead of only selling them to OEMs.

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".

Post by greatpatton » Wed, Feb 22, 2023, 12:30 PM UTC

Tepix wrote: post #191

bayindirh wrote: post #190

Earlier quoted context omitted.

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".

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?

Post by dr_zoidberg » Wed, Feb 22, 2023, 12:34 PM UTC

flakeoil wrote: post #175

PragmaticPulp wrote: post #34

Earlier quoted context omitted.

> Put another way: if AMD (and especially Intel) don't do something about this they're going to get completely eaten alive by ARM. AMD’s latest parts are actually quite close to M1/M2 in computing efficiency when clocked down to more conservative power targets. They crank the power consumption of their desktop CPUs deep into the diminishing returns region because benchmarks sell desktop chips. You can go into the BIO…

It's actually this idling power which is what defines battery drain for most people. All these benchmarks about how much it can for a certain compute intensive task is not that important considering that most of the time a laptop is doing almost nothing. We just stare at an article in a web browser. We look at a text document. We type a bit in the document. An app is doing an HTTP request. The CPU is doing nothing ba…