title: Is GTX 680 Capable of Concurrent Data Transfer
body: <p>I expected that GTX 680 (which is one of the latest version of GPUs) is capable of concurrent data transfer (concurrent data transfer in both direction). But when I run cuda SDK "Device Query", the test result of the term "Concurrent copy and execution" is "Yes with 1 copy engine", and it means that the GPU can not do concurrent data transfer.</p>
  
  <p>I wonder if my testing result also happens to you? And can you share with me which devices are capable of concurrent data transfer?</p>
  
  <p>Thanks!</p>