AnsweredAssumed Answered

Transfer Rate exceed PCI-e bandwith

Question asked by arvin99 on Dec 5, 2013
Latest reply on Oct 10, 2015 by youwei


I need your help. I create an OpenCL program using pinned buffer.

The duration to transfer buffer from device to host is fast as I expected.

My question is, is it normal  if the transfer rate of pinned buffer (size is 256 MB)  exceed the PCI-e bandwidth (PCI-e 2.0 x 16)??

The transfer rate of pinned buffer is 204582 GB/s ( iget the transfer rate from AMD APP Profiler)