The AMD Ryzen 9 PRO 5945 is a desktop processor with 12 cores, launched in April 2022. It is part of the Ryzen 9 lineup, using the Zen 3 (Vermeer) architecture with Socket AM4. Thanks to AMD Simultaneous Multithreading (SMT) the core-count is effectively doubled, to 24 threads. Ryzen 9 PRO 5945 has 64 MB of L3 cache and operates at 3 GHz by default, but can boost up to 4.7 GHz, depending on the workload. AMD is building the Ryzen 9 PRO 5945 on a 7 nm production process using 8,300 million transistors. The silicon die of the chip is not fabricated at AMD, but at the foundry of TSMC. The multiplier is locked on Ryzen 9 PRO 5945, which limits its overclocking capabilities.
With a TDP of 65 W, the Ryzen 9 PRO 5945 consumes typical power levels for a modern PC. AMD's processor supports DDR4 memory with a dual-channel interface. The highest officially supported memory speed is 3200 MT/s, but with overclocking (and the right memory modules) you can go even higher. ECC memory is supported, too, which is an important capability for mission-critical systems, to avoid data corruption. For communication with other components in the machine, Ryzen 9 PRO 5945 uses a PCI-Express Gen 4 connection. This processor does not have integrated graphics, you will need a separate graphics card.
Hardware virtualization is available on the Ryzen 9 PRO 5945, which greatly improves virtual machine performance. Programs using Advanced Vector Extensions (AVX) will run on this processor, boosting performance for calculation-heavy applications. Besides AVX, AMD is including the newer AVX2 standard, too, but not AVX-512.