I am not talking about the eDRAM. I am talking about the cache that is L3 for CPU

By: Robert Williams (crispysilicon.delete@this.gmail.com), April 9, 2021 11:24 am
Room: Moderated Discussions
Heikki Kultala (heikki.kulta.la.delete@this.gmail.com) on April 8, 2021 11:09 pm wrote:
> Mark Roulo (nothanks.delete@this.xxx.com) on April 8, 2021 11:31 am wrote:
> > Heikki Kultala (heikki.ku.ltala.delete@this.gmail.com) on April 7, 2021 12:38 pm wrote:
> > ...
> > > And Intel has it's SRAM-based LLC working as L4 cache for their iGPUs for ages.
> >
> > FYI, the L4 cache that Intel shipped with some of its IGPUs was eDRAM, not SRAM.
>
> No.
>
> There is one cache level more for the iGPU than CPU.
>
> What is L3 for CPU is L4 for GPU.
>
>
>

The CPU uses the L4 very happily in the presence on an external GPU.
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