AMD Siren Halo APU rumored GDDR7 VRAM, Digi Mart USA News: AMD’s next-generation high-end APUs could change how the company handles memory on its Halo-branded processors, according to a new leak from hardware leaker Gotou_3rd. The leaker says the Siren Halo chip will feature dedicated GDDR7 VRAM.
When another user asked whether the processor would use unified GDDR memory or separate memory pools, the leaker clarified that LPDDR would still be present. That suggests AMD could equip Siren Halo with two different memory types, although the exact configuration remains unknown.
The current benchmark for this class is AMD’s Ryzen AI Max+ 495 (Gorgon Halo), which supports up to 192 GB of unified memory, with as much as 160 GB configurable as graphics memory. That capacity has made the chip attractive for running large language models locally, where memory size often matters more than raw processing power.
The source notes the chip costs around $7,000.
A dedicated GDDR7 memory pool could give Siren Halo’s GPU significantly more bandwidth, potentially improving gaming performance. The same arrangement could complicate local AI workloads if the graphics processor cannot access the LPDDR pool as efficiently.
Whether the two memory types can be used together remains unclear, although the source points to products such as the Lucebox, which already mix LPDDR and GDDR memory so users can allocate resources based on a model’s needs.
AMD has also laid groundwork for GDDR7 support. A Linux driver patch submitted in September 2026 added GDDR7 to the memory types recognised by the AMD GPU driver, which the report suggests could indicate the imminent arrival of RDNA 5. The leaker further stated that Siren Halo would succeed Medusa Halo, while Siren Point would essentially be a Medusa refresh.
Earlier rumours had linked Medusa Halo to Zen 6 CPU cores, RDNA 5 graphics and LPDDR6 memory.
The leaker also suggested a possible connection to AMD’s rumored Magnus chip, previously associated with Microsoft’s next-generation Xbox, but explicitly said 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.
All of these details remain unconfirmed by AMD.
