By: dmcq (dmcq.delete@this.fano.co.uk), September 9, 2022 11:02 am
Room: Moderated Discussions
anon2 (anon.delete@this.anon.com) on September 8, 2022 10:27 pm wrote:
> _ (canadianmist.delete@this.protonmail.com) on September 8, 2022 4:27 pm wrote:
> > https://twitter.com/SkyJuice60/status/1567815111007698950?s=20&t=Kn1ZhBjDbFxCJ84Ge72H0w
> >
>
> No real surprise to anybody paying attention. The silicon offers minimal
> improvement, so minimal improvement is what there will be.
>
> "Microarchitectural improvement" is largely paid for with increased power or device performance.
> Even a new microarchitecture's 20% IPC gain "from bigger queues bigger scheduler bigger
> caches bigger branch predictors more execution units etc" isn't just something the designers
> of the previous microarchitecture simply forgot might be a good idea.
It looks like Apple have kept the same microarchitecture and yet they have got some very worthwhile improvements, they say 10% faster with 20% less power - that would be down to the new process from TSMC and some general work by Apple on power improvements. The main changes are in the rest of the chip and it is likely the CPU designers have been working away on something else that is taking a bit longer. Intel used to do something a bit like that with its tick-tock.
> _ (canadianmist.delete@this.protonmail.com) on September 8, 2022 4:27 pm wrote:
> > https://twitter.com/SkyJuice60/status/1567815111007698950?s=20&t=Kn1ZhBjDbFxCJ84Ge72H0w
> >
>
> No real surprise to anybody paying attention. The silicon offers minimal
> improvement, so minimal improvement is what there will be.
>
> "Microarchitectural improvement" is largely paid for with increased power or device performance.
> Even a new microarchitecture's 20% IPC gain "from bigger queues bigger scheduler bigger
> caches bigger branch predictors more execution units etc" isn't just something the designers
> of the previous microarchitecture simply forgot might be a good idea.
It looks like Apple have kept the same microarchitecture and yet they have got some very worthwhile improvements, they say 10% faster with 20% less power - that would be down to the new process from TSMC and some general work by Apple on power improvements. The main changes are in the rest of the chip and it is likely the CPU designers have been working away on something else that is taking a bit longer. Intel used to do something a bit like that with its tick-tock.
