By: juanrga (nospam.delete@this.juanrga.com), March 6, 2015 5:18 pm
Room: Moderated Discussions
Wilco (Wilco.Dijkstra.delete@this.ntlworld.com) on March 6, 2015 12:49 pm wrote:
> Alberto (git.delete@this.git.it) on March 6, 2015 10:45 am wrote:
> > Exophase (exophase.delete@this.gmail.com) on March 5, 2015 12:57 pm wrote:
> > > Alberto (git.delete@this.git.it) on March 5, 2015 11:06 am wrote:
> > > > Do you expected much from ARM?? This is only a minor refresh
> > > > useful in handset, a larger L2 could give better
> > > > responsiveness, less bus activity and some advantage on few bench suites so loved by tech sites.
> > > > So nearly all the advantage is in the new process and in a better power management, no breaking news.
> > > >
> > > > Qualcomm sports this core right now in the 600 serie, this say a lot about
> > > > the strategic utility of the custom core that we'll see in 820.
> > > >
> > > >
> > >
> > > You're making the mistake of thinking that they only changed those two things because
> > > that's all that's demonstrated in the TRM. ARM's TRMs today are very light on uarch details.
> > > While it does rule out some improvements there are many others that it does not.
> >
> > Sure you are right, still i don't think this is a "fast" cpu, in 620 is clocked at 1.8
> > Ghz and the flagship is 810 with a 2Ghz A57, i am pretty certain there is no trivial difference
> > between 620 and 810 for market differentiation. Strange enough apparently it looks "slower"
> > clock to clock than A57 to drop the power.
>
> It's obvious the 620 will outperform the 810 despite running at a lower frequency. QC
> just clocks it slow enough to avoid making their next-gen custom core look bad...
>
> MediaTek has no such positioning issues and announced 2.4GHz
> A72's that will beat Apple A8 and Denver by a good margin.
Do you have more concrete values/estimations?
Thanks
> > A57 is a power hog by default.
>
> Sure, that's why Samsung puts quad-core 2.1GHz A57 in their phones rather than Krait. They obviously
> selected the worst power hog they could possibly find and then made the battery a lot smaller too
> because as we all know, as long as the frame is metallic, battery life doesn't matter.
>
> Wilco
>
> Alberto (git.delete@this.git.it) on March 6, 2015 10:45 am wrote:
> > Exophase (exophase.delete@this.gmail.com) on March 5, 2015 12:57 pm wrote:
> > > Alberto (git.delete@this.git.it) on March 5, 2015 11:06 am wrote:
> > > > Do you expected much from ARM?? This is only a minor refresh
> > > > useful in handset, a larger L2 could give better
> > > > responsiveness, less bus activity and some advantage on few bench suites so loved by tech sites.
> > > > So nearly all the advantage is in the new process and in a better power management, no breaking news.
> > > >
> > > > Qualcomm sports this core right now in the 600 serie, this say a lot about
> > > > the strategic utility of the custom core that we'll see in 820.
> > > >
> > > >
> > >
> > > You're making the mistake of thinking that they only changed those two things because
> > > that's all that's demonstrated in the TRM. ARM's TRMs today are very light on uarch details.
> > > While it does rule out some improvements there are many others that it does not.
> >
> > Sure you are right, still i don't think this is a "fast" cpu, in 620 is clocked at 1.8
> > Ghz and the flagship is 810 with a 2Ghz A57, i am pretty certain there is no trivial difference
> > between 620 and 810 for market differentiation. Strange enough apparently it looks "slower"
> > clock to clock than A57 to drop the power.
>
> It's obvious the 620 will outperform the 810 despite running at a lower frequency. QC
> just clocks it slow enough to avoid making their next-gen custom core look bad...
>
> MediaTek has no such positioning issues and announced 2.4GHz
> A72's that will beat Apple A8 and Denver by a good margin.
Do you have more concrete values/estimations?
Thanks
> > A57 is a power hog by default.
>
> Sure, that's why Samsung puts quad-core 2.1GHz A57 in their phones rather than Krait. They obviously
> selected the worst power hog they could possibly find and then made the battery a lot smaller too
> because as we all know, as long as the frame is metallic, battery life doesn't matter.
>
> Wilco
>