There is nothing wrong with treating G13 as an IMR GPU. But might be able better performance and efficiency when doing for example image processing (or a task t

There is nothing wrong with treating G13 as an IMR GPU. But might be able better performance and efficiency when doing for example image processing (or a task that maps to it conceptually) via the rendering pipeline with tile shaders. This way you can process your data in small chunks, using very fast on-GPU memory file. In the end, tile memory is the same thing as shared memory in CUDA, but you can persist its contents between multiple different compute and fragment shaders. It's a very powerful programming model that makes local data relationships explicit.