Ryzen 9 3900X is a desktop processor from AMD released on 7 July 2019, and it is in active production status now. It belongs to Ryzen 9 family and has a Matisse architecture. This processor is built on AMD Socket AM4, and uses Gen 4 PCI express connection. 7 nm process is used in production.
Processor has 12 cores and 24 threads, with the base frequency of 3.8 GHz. It has DDR4-3200 MHz Dual-channel memory support. As for the cache, it supports L1 64K (per core), L2 512K (per core) and L3 64MB.