I am mainly a tripod shooter or it's just friends/family so memory card issue has never been an issue for me. I found out with my D600 my cards are 30MB/sec read and 10MB/sec write. I see that the UHS-1 cards are rated maximum of 105MB/sec so that puts it in the area of the 95MB/sec read and 90MB/sec write cards or the former 90MB/sec read with 40MB/sec write. What memory card speeds do you use for your non D5 etc .. cameras .... Cheers.