IR reports that after the buffer is full the D600 shoots at 1.4 fps in 14 bit lossless. Those files are 29.2 MB, so we're looking at 41 MB/sec. Based on using 12 bit lossless in the D7100 that would yield 41/22.7 = 1.8 fps. Which is consistent with the buffer (7 shots) clearing in say 4.25 seconds. Which again is consistent with the D600's buffer clearing in 9 seconds after 14 14 bit lossless compressed RAW with these cards, as reported by IR. Rob Galbraith tested these cards in a D7000 and only achieved write speeds of 26 MB/sec.