The AMD Ryzen 9 PRO 7945 is a server/workstation processor with 12 cores, launched in June 2023. It is part of the Ryzen 9 lineup, using the Zen 4 (Raphael) architecture with Socket AM5. Thanks to AMD Simultaneous Multithreading (SMT) the core-count is effectively doubled, to 24 threads. Ryzen 9 PRO 7945 has 64 MB of L3 cache and operates at 3.7 GHz by default, but can boost up to 5.4 GHz, depending on the workload. AMD is making the Ryzen 9 PRO 7945 on a 5 nm production node using 13,140 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 7945, which limits its overclocking potential.
With a TDP of 65 W, the Ryzen 9 PRO 7945 consumes typical power levels for a modern PC. AMD’s processor supports DDR5 memory with a dual-channel interface. The highest officially supported memory speed is 5200 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 7945 uses a PCI-Express Gen 5 connection. This processor features the Radeon Graphics integrated graphics solution. Inside the box you will not only find the processor, but also a Wraith Spire cooler.
Hardware virtualization is available on the Ryzen 9 PRO 7945, which greatly improves virtual machine performance. Programs using Advanced Vector Extensions (AVX) can run on this processor, boosting performance for calculation-heavy applications. Besides AVX, AMD has added support for the newer AVX2 and AVX-512 instructions, too.