> well there are more types :) shared memory: which is reserved for the SM (a bunch of CUDA cores) so that cores in the same block (SM) can share data. pinned memory: you can disable OS paging in the RAM (since CUDA operates in the driver level)

I used different (OpenCL-like) terminology, but we're talking about the same things. Shared memory <=> local memory. Pinned memory <=> page locked dma buffers.