”AMD has been successfully outpacing Intel in gaming, especially on the processor front, thanks to its 3D V-Cache technology. Now, Intel has announced that it will start using a 3D stacked cache design.”

 

Intel CEO Pat Gelsinger held a Q&A session with the press at Innovation 2023. In response to a question about whether Intel would adopt a 3D cache approach similar to AMD’s 3D V-Cache processors, Gelsinger confirmed that Intel would be using a stacked cache approach paired with the CPU die, albeit with a slightly different approach.

To clarify from the outset, stacked cache or 3D V-Cache technology won’t be coming with the Meteor Lake processors. Intel will start implementing this method in later processors. Intel will also offer its own stacked cache technology to customers. Intel’s adoption of such technology makes sense since the hybrid stacking technology behind 3D V-Cache is not exclusive to AMD and is provided by TSMC’s SoIC packaging technology.

However, as Gelsinger stated, Intel will take a different path: “But in our roadmap, you will see this concept of having cache in a 3D silicon in a single package, right? And then we will stack a CPU die on top of that.” This appears to differ from AMD’s use of chip stacking technology to place additional memory on top of CPU dies. According to Gelsinger, Intel wants to do the opposite and stack the CPU on top of the memory.

Stacked cache has proven to be a strategic advantage for AMD, powering its Ryzen X3D CPUs, which are among the world’s fastest gaming processors. It is also positioned as a strong value-add for X-series EPYC processors like Genoa-X. It appears that Intel will be entering this arena in the coming years as well. Here, Intel’s EMIB and Foveros technologies will play a significant role. Although Intel’s CEO didn’t go into much detail, he mentioned that the company plans to vertically interconnect chip dies using EMIB and Foveros processes, allowing silicon to communicate together in a single package. The first step in this direction will be with the Core Ultra processors under the codename Meteor Lake.

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