AMD Siren Halo APU rumored to feature dedicated GDDR7 VRAM alongside LPDDR memory

AMD’s next-generation high-end APUs could reshape how the company uses memory on its Halo-branded SKUs. According to a new leak from hardware leaker Gotou_3rd, Siren Halo will feature dedicated GDDR7 VRAM. When another user asked whether the processor would feature unified GDDR memory or separate memory pools, the leaker clarified that LPDDR would still be present. This suggests AMD could equip Siren Halo with two different memory types, although their exact configuration remains unknown.

AMD’s existing Ryzen AI Max+ 495 (Gorgon Halo) supports up to 192 GB of unified memory, with as much as 160 GB configurable as graphics memory. This has made Gorgon Halo particularly attractive for running large language models locally, where memory capacity is often more important than raw processing power. You will have to pay around ~$7,000 for the privilege, though.

A dedicated GDDR7 memory pool could provide Siren Halo’s GPU with significantly more bandwidth, potentially improving gaming performance. However, it could also complicate matters for local AI workloads if the graphics processor cannot access the LPDDR memory pool as efficiently. Whether the two memory types can be used together remains unclear. That said, solutions like the Lucebox already mix and match LPDDR and GDDR memory types, allowing people to dynamically allocate resources based on the model’s needs. 

Interestingly, AMD has already begun laying the groundwork for GDDR7 support. A Linux driver patch submitted in September 2026 added GDDR7 to the memory types recognised by the AMD GPU driver. This could also be an indicator of RDNA 5’s imminent arrival. The leaker also provided additional information about AMD’s future processor roadmap. Gotou confirmed that Siren Halo would succeed Medusa Halo, whereas Siren Point would essentially be a Medusa refresh. Previous rumours had linked Medusa Halo to Zen 6 CPU cores, RDNA 5 graphics and LPDDR6 memory.

There could also be a connection to AMD’s rumored Magnus chip, previously associated with Microsoft’s next-generation Xbox. However, Gotou explicitly stated that this was only a possibility and that they lacked confirmation. Microsoft has confirmed that its upcoming Project Helix console will use a custom AMD SoC, but has not disclosed its memory configuration