AMD launches the Ryzen AI Max PRO 400 series of CPUs, up to 16 cores with 192GB of unified memory

AMD has officially announced the Ryzen AI Max PRO 400 series processors, the successor to the Strix Halo-based Ryzen AI Max 300 lineup. Codenamed "Gorgon Halo," the new family is designed for commercial AI PCs, mobile workstations, and small-form-factor desktop systems. It looks like the focus remains on professional and AI workloads rather than the broader consumer pitch of its predecessor.

The lineup launches with three SKUs: the Ryzen AI Max+ PRO 495, the Ryzen AI Max PRO 490, and the Ryzen AI Max PRO 485. All three are built on the same Zen 5 CPU cores, RDNA 3.5 integrated graphics, and XDNA 2 NPU architecture as the 300 series. The core configurations remain unchanged, with the main differentiator being a significant upgrade in memory capacity.

4

The Ryzen AI 300 series topped out at 128GB of LPDDR5X-8000 unified memory. The 400 series pushes that up to 192GB of faster LPDDR5X-8533, a 50% increase. This is arguably the most important spec on paper, because the CPU and GPU share a single memory pool on this platform, meaning the integrated GPU gets access to far more memory than any discrete laptop GPU can offer.

AMD says up to 160GB of that total pool can be allocated as VRAM, up from 96GB on the previous generation. The company claims that this enlarged pool enables on-device inference with models exceeding 300 billion parameters. Of course, any first-party claims will need to be independently verified when the APUs are eventually released.

4

The flagship Ryzen AI Max+ PRO 495 is the only SKU getting a meaningful silicon-level bump. It packs 16 Zen 5 cores, 32 threads, 80MB of cache, and the new Radeon 8065S iGPU with 40 compute units running at 3.0GHz, which is 100MHz higher than the 300 series equivalent. The CPU itself also boosts to 5.2GHz, up 100MHz.

4

The AI Max+ PRO 490 and 485 both retain the older Radeon 8050S with 32 compute units and do not hit the 55 TOPS NPU rating of the 495. As we covered in our earlier piece, the Max+ PRO 495 had already surfaced on PassMark running inside an HP system with eight SK Hynix 24GB LPDDR5X packages, confirming the 192GB configuration well ahead of today's announcement.

It is worth noting that AMD is only announcing PRO variants for now, with no word yet on whether standard non-PRO chips will follow. Systems from ASUS, HP, and Lenovo are expected to be available in Q3 2026.