AMD just announced its first Zen 3D (Ryzen 5000 w/ 3D stacked L3 cache) SKU in the form of the Ryzen 7 5800X3D. Featuring eight cores and sixteen threads, the upcoming CPU packs 96MB of L3 cache (32MB 2D + 64MB 3D) and is compatible with B450/X470 and B550/X570 motherboards. Other than the stacked cache, the CPU cores are largely unchanged. The core clocks are lower than the vanilla 5800X, with a base operating clock of 3.4GHz (vs 3.8GHz) and a boost of 4.5GHz (vs 4.7GHz). This has likely been implemented to keep the thermals in check. (xanax)
Regardless, the Ryzen 7 5800X3D is up to 17% faster than the Intel Alder Lake-S flagship, beating the Core i9-12900K consistently across the board. On average, it’s 6-8% faster than the fastest Intel processor. Compared to the Ryzen 9 5900X, we’re looking at an average gain of 15% in gaming workloads.
AMD plans to launch the Ryzen 7 5800X3D in spring 2022 (March/April). The lack of a Ryzen 9 5900X3D is glaring but may be announced at a later date, or might have been scrapped to pave way for the Zen 4 lineup.
The Ryzen 7000 processors featuring the 5nm Zen 4 cores are on track for a late 2022 launch. You can expect the next-gen AMD parts to pack up to 24 cores across three CCDs and boost clocks in excess of 5GHz.