I think primarily it refers to the cache being physically located above the CPU die, yes. It's worth noting that AMD also uses FinFET transistors, which are ph

I think primarily it refers to the cache being physically located above the CPU die, yes. It's worth noting that AMD also uses FinFET transistors, which are physically 3-D [0, 1] (compared to MOSFET transistors, which are planar / 2-D). [0]: https://en.wikipedia.org/wiki/Fin_field-effect_transistor https://en.wikipedia.org/wiki/Fin_field-effect_transistor [1]: https://www.amd.com/en/press-releases/amd-demonstrates-2016jan04 https://www.amd.com/en/press-releases/amd-demonstrates-2016j...