AMD continues to work on developing technologies to make its chips more sophisticated. We have already seen the announcement of the world’s first graphics card (Instinct MI250) based on a dual-GPU GPU, as well as the announcement of the Epyc Milan-X processors with additional cache memory implemented using 3D V-Cache technology.
A new AMD patent describes an Accelerated Processor Die (APD) module that is integrated into the GPU. How exactly is not yet clear. It can be a separate built-in microcircuit, as in the case of 3D V-Cache, or some other option. But the bottom line is that this is a separate crystal that performs machine learning and memory acceleration tasks. It also includes interconnects and various controllers. APD has its own memory that can be used both as a cache for the APD core die and directly for operations performed by the machine learning accelerator.
The APD module may well be the answer to Nvidia’s Tensor kernels. Of course, this is only a patent so far, so it’s too early to draw any conclusions. This technology may initially find application in specialized Instinct accelerators, as happened with a dual-chip GPU.