GPU do not accelerate raw storage retrieval, but processing, like queries and map reduce. Use APU / HPU, if PCIe latency is a problem. I understood that they

GPU do not accelerate raw storage retrieval, but processing, like queries and map reduce. Use APU / HPU, if PCIe latency is a problem. I understood that they running something like convolution (I.e, each pixel calculated from surrounding pixels) - this will be fast using OpenCL model).