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Intel Confirms Development of 3D-Stacked Cache Technology for Processors

At the InnovatiON 2023 Day 1 Q&A, Intel CEO Pat Gelsinger discussed the company's ongoing work in 3D-stacked cache technology for their processors. The technique involves expanding the on-die last-level cache (L3 cache) by stacking an additional SRAM die atop the current cache, integrating it...

www.guru3d.com

At the InnovatiON 2023 Day 1 Q&A, Intel CEO Pat Gelsinger discussed the company's ongoing work in 3D-stacked cache technology for their processors. The technique involves expanding the on-die last-level cache (L3 cache) by stacking an additional SRAM die atop the current cache, integrating it with the cache's high-bandwidth data fabric.

Interestingly, the stacked cache operates at the same velocity as the on-die cache, offering a continuous addressable cache memory block. Although this technology is not slated for the Meteor Lake, Intel plans its implementation in various future processors. AMD has already integrated 3D-stacked cache technology into its processors, yielding significant results. In client processors, such as the Ryzen X3D series, the augmented cache notably enhances gaming performance by enabling the CPU cores to swiftly access more rendering data. For server processors, models like EPYC "Milan-X" and "Genoa-X" have seen marked performance boosts in memory-heavy computational tasks, attributed to the increased cache.

Gelsinger said Intel plans to connect chip dies vertically using its EMIB and Foveros processes, "so we feel very good that we have advanced capabilities for next-generation memory architectures." He added that the technology will be used in Intel's own products and also be available to Foundry (IFS) customers.

3D cache was a great success for AMD, both for gaming CPUs and for servers. So it was to expect other companies would copy AMD's technology.
Still, no word on when it will be available, only that it's being developed.

 

[twilo99]

It would be a huge mistake not to

 

[Gaiff]

Intel Confirms Development of 3D-Stacked Cache Technology for Processors

At the InnovatiON 2023 Day 1 Q&A, Intel CEO Pat Gelsinger discussed the company's ongoing work in 3D-stacked cache technology for their processors. The technique involves expanding the on-die last-level cache (L3 cache) by stacking an additional SRAM die atop the current cache, integrating it...

www.guru3d.com

3D cache was a great success for AMD, both for gaming CPUs and for servers. So it was to expect other companies would copy AMD's technology.
Still, no word on when it will be available, only that it's being developed.

The thing with 3D VCache when it comes to gaming is the fact that it's quite inconsistent. In some games, it provides incredible performance boosts (20% +) while in many others, it yields no differences whatsoever. Still, the potential far outweighs the drawbacks, so why not?

 

[nikos]

I'll get rid of this 7800X3D as soon as that happens.

 

[Trogdor1123]

I'll get rid of this 7800X3D as soon as that happens.

why?

 

[Kadve]

IIRC. Intel can't really do 3D cache because their processors are still monolithic while AMD switched over to multi-chip modules (aka "chiplet") with Ryzen. Meteor Lake will be their first MCM design so makes sense why they wouldn't want to rush including 3d Cache before they got all the kinks sorted out.

 

[OverHeat]

I'll get rid of this 7800X3D as soon as that happens.

Why? Having problems?

 

[M1chl]

Weren't they trying with Optane?