AMD Ryzen AI Max PRO 385 socket: FP11

What the Ryzen AI Max PRO 385 is

The Ryzen AI Max PRO 385 is an 8-core, 16-thread mobile workstation APU that AMD launched in January 2025 in the middle of the PRO branch of the Strix Halo silicon. Its eight uniform Zen 5 cores run at 3.6 GHz and boost to 5.0 GHz, backed by 8 MB of L2 and 32 MB of L3 cache. Graphics come from AMD Radeon 8050S Graphics with 32 compute units at up to 2800 MHz, and an XDNA 2 NPU delivers up to 50 TOPS for local AI work.

The PRO suffix marks the business stack. The chip carries AMD PRO Technologies for fleet deployment and maintenance, while its clocks, core count and graphics match the consumer AMD Ryzen AI Embedded X188i exactly. A company standardising on the PRO 385 gets the same Strix Halo performance as the retail twin, with the management and security layers that IT departments require.

Strix Halo is a chiplet design. Zen 5 core chiplets sit beside a large I/O die that holds the graphics engine, the NPU and the memory controller. AMD builds the compute silicon on the TSMC 4 nm process. The laptop maker sets the cooling and power policy inside a 45 to 120 W configurable window, with 55 W as the default TDP for this SKU.

Against the 6-core PRO 380 below it, the 385 doubles the graphics compute units from 16 to 32 and adds two CPU cores with a higher 5.0 GHz boost. That balance suits mobile workstations that mix technical applications with GPU compute and on-device inference. The 12-core PRO 390 above it keeps the same 32 compute unit GPU and adds CPU headroom for heavier multithreaded builds.

Socket and motherboard compatibility

The Ryzen AI Max PRO 385 is soldered to its board in the FP11 ball grid array, so there is no socket to plug into and the chip cannot be replaced or upgraded later. The 2,077-ball joint is made once at the factory on a 37.5 × 45 mm package, and the laptop design is qualified around this exact SKU for its whole service life.

There is no board or chipset choice in the retail sense. The vendor selects the soldered memory capacity, tunes the firmware and validates the thermal design for the 45 to 120 W window. Moving to the 6-core AMD Ryzen AI Max PRO 380 or the 12-core AMD Ryzen AI Max PRO 390 means a different board build, not a part swap, even though all three share the FP11 package.

The FP11 footprint is shared with the embedded branch of the same silicon, including the industrial AMD Ryzen AI Embedded X188i for equipment with long lifecycles. The smaller FP8 package covers lower power Strix Point laptops with smaller integrated graphics. Halo boards stay distinct from those mainstream designs by memory width and power class.

Memory, PCIe and cooling

Memory is soldered LPDDR5X up to 8000 MT/s on a 256-bit bus, with up to 128 GB in one unified pool shared by the CPU cores, the 32 compute unit graphics engine and the NPU. The wide bus feeds the large integrated GPU far better than the narrow memory of mainstream thin laptops, which is why this SKU can take on GPU compute tasks that normally need a separate card. Capacity and speed are fixed when the board is built.

Expansion comes from 16 PCIe Gen4 lanes from the SoC, which typically serve NVMe storage and high speed peripherals. Display and parallel compute run on the integrated Radeon graphics, so the lanes stay free for storage and I/O duties. The exact lane split and port list are set per laptop design, so the vendor specification governs.

Cooling is a system responsibility across the 45 to 120 W configurable range. The vendor sizes the heatsink and fan policy for the chassis, and there is no boxed cooler and no retail heatsink list for a soldered mobile APU. Chassis choice decides how long the chip holds its 5.0 GHz boost under combined CPU and GPU load.

Upgrade paths

There is no CPU upgrade path on a soldered package. When eight cores stop being enough, the step inside FP11 is a different board build with the 12-core AMD Ryzen AI Max PRO 390, keeping the same 32 compute unit GPU and LPDDR5X memory design with power scaled to the chassis. When the workload shrinks, the 6-core PRO 380 is the corresponding step down.

Moving off FP11 means a new platform. The FP8 family serves lower power business laptops with smaller integrated graphics, and desktop builders meet related Zen 5 silicon on socketed boards. Because memory is soldered on FP11, even a memory size change means a new board, so capacity planning belongs at the start of the project.