GPU chiplets burn a lot of power!

By: David Kanter (dkanter.delete@this.realworldtech.com), October 28, 2020 7:40 pm
Room: Moderated Discussions
Dummond D. Slow (mental.delete@this.protozoa.us) on October 28, 2020 8:27 pm wrote:
> Mark Roulo (nothanks.delete@this.xxx.com) on October 28, 2020 8:15 pm wrote:
> > Dummond D. Slow (mental.delete@this.protozoa.us) on October 28, 2020 5:32 pm wrote:
> > > me (me.delete@this.me.com) on October 28, 2020 11:14 am wrote:
> > > > > AMD tanked in the stock market today when under normal circumstances it would have rallied, having soundly
> > > > > beaten guidance and predictions. I think this signals the uncertainty around the deal, the lack of clarity
> > > > > on direction, potential and especially purpose, never mind the official management line.
> > > > >
> > > >
> > > > I'm sure we will see FPGA chiplets
> > > >
> > >
> > > You sure?
> >
> > Xilinx has been shipping FPGAs built around chiplets since at least 2011 with the Virtex-7.
>
> But the point is that AMD has not shipped CPUs with any non-CPU chiplets, ever. Despite using MCM
> for Opterons since 2010. Intel is going to add HBM and whatnots to Xeons (Sapphire Rapids) it seems,
> while AMD has nothing like that planned, even if they should be in a better position to do it.
>
> I'm just saying AMD very seldom realizes these "that would be great" and "absolutely makes sense" concepts.
>
> BTW, Intel had embedded Atom chip with on-package FPGA around 2009-2010 I think.

You need something like EMIB or even higher bandwidth to attempt a decomposed GPU. The internal bandwidth is FAR too high for anything like what AMD is doing with Epyc.

David
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