Brand New AMD Ryzen Desktop Processors Raphael Generation As We Are know, will be released sometime in the second half of this year. Perhaps we now have the best idea at the moment of what such CPUs will be.
The block diagram below describes one Raphael chiplet. And the description is very unusual. You can see 16 cores with Zen 4 architecture, that is, AMD with the transition to the 5 nm process technology will double the number of cores in the chiplet. Either this means that the top-end Ryzen models of the new generation will have more than 16 cores (up to 32), or all regular CPUs will have only one chiplet.
Be that as it may, something else is interesting now. You can see that not all 16 processor cores are created equal. However, they do not differ in architecture. It’s just that eight cores work in normal full-fledged mode, while the other eight are limited to a TDP of 30 watts. Not 30 W for each of eight such cores, but a total of 30 W for eight cores. It is reported that energy efficient cores will not always work, but will be connected as needed when the load on the main cores reaches 100%.
Another feature is the 3D V-Cache chip or layer. But the block diagram indicates that in this form the processor will implement the entire L3 cache. Thus, if nothing changes with respect to the current implementation, any new generation Ryzen with one chiplet will have up to 64 MB of L3 cache, and with two chiplets, the volume will increase to 128 MB. Given the division of cores into full-fledged and limited ones, it is quite possible that top-end CPUs will indeed be 32-core.
Recall that before the release of completely new Ryzen with Zen 4, we will have more updated Ryzen 5000X3D, which will be released in the spring.