According to a leak from Gotou_3rd on X, the upcoming AMD Siren Halo APU may feature a hybrid memory architecture. The design is expected to combine dedicated GDDR7 video memory with standard LPDDR system memory, marking a shift from the unified memory pools seen in previous generations.
The leaker suggests that Siren Halo will succeed the Medusa Halo architecture. Siren Point is described as a refresh of the Medusa design, with the new branding introduced because AMD does not plan to release a completely new Halo architecture in 2027.
Current chips like Strix Halo and its Gorgon Halo refresh rely on a single LPDDR5X pool shared between the CPU and GPU. For instance, the Ryzen AI Max+ PRO 495 supports up to 192 GB of memory, allowing up to 160 GB to be allocated for graphics tasks, which is beneficial for local LLM execution.
While the inclusion of GDDR7 could significantly increase bandwidth for the integrated GPU, details regarding memory capacity, bus widths, and official release dates remain unknown. AMD has already integrated GDDR7 support into its Linux drivers as of September.
There is also speculation linking the Siren Halo chip to the Magnus project, which has been associated with Microsoft's Project Helix. However, AMD has not officially confirmed the existence of the Siren Halo APU, and these details remain unverified.
