The AMD Ryzen AI Max PRO 390 is a mobile processor with 12 cores, launched in January 2025. It is part of the Ryzen AI Max lineup, using the Zen 5 (Strix Halo) architecture with Socket FP11. Thanks to AMD Simultaneous Multithreading (SMT) the core-count is effectively doubled, to 24 threads. Ryzen AI Max PRO 390 has 64 MB of L3 cache and operates at 3.2 GHz by default, but can boost up to 5 GHz, depending on the workload. AMD is building the Ryzen AI Max PRO 390 on a 4 nm production process, the transistor count is unknown. The silicon die of the chip is not fabricated at AMD, but at the foundry of TSMC. The multiplier is locked on Ryzen AI Max PRO 390, which limits its overclocking capabilities. With a TDP of 55 W, the Ryzen AI Max PRO 390 consumes typical power levels for a modern PC. 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 computer, Ryzen AI Max PRO 390 uses a PCI-Express Gen 4 connection. This processor features the Radeon 8050S integrated graphics solution. Hardware virtualization is available on the Ryzen AI Max PRO 390, which greatly improves virtual machine performance. Additionally, IOMMU virtualization (PCI passthrough) is supported, so that guest virtual machines may directly use host hardware. Programs using Advanced Vector Extensions (AVX) will 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.