The AMD Ryzen 7 9800X3D processor is the first Zen 5 CPU with 3D V-Cache, boasting 8 cores and 16 threads with 64MB of cache. The 64MB 3D V-Cache located under the processor cores improves cooling efficiency. Priced at $479 USD, the processor features a 5.2GHz boost and 4.7GHz base clock, providing a total of 104MB of cache. Tested on Ubuntu Linux, the processor performed well compared to various Intel Core and AMD Ryzen models. With a default TDP of 120 Watts, the Ryzen 7 9800X3D can be used with existing AMD AM5 motherboards with a BIOS update.
https://www.phoronix.com/review/amd-ryzen-7-9800x3d-linux