The new hack option puts my 600x Sandisk 16GB card just into continuous levels at 1880x854! Write speed seemed to stick around 64.7 MB/s. Gonna inspect the frames to see if I get anything like ted ramasola is seeing. I'll also have to account for the fact that I left the unofficial 1880 option on as well...
edit: It was probably a bad idea to record my LCD screen for this test due to the moire lol. I don't see anything wrong, but I'll test it again later.
Whoa, I pushed the res a little higher to see where the write speeds will top off and it seems to be at around 67.5 MB/s @ 1880x940 24.000 FPS. It started off at 68.5 MB/s for a good 10 seconds or so, but dropped. We've come a long way since the early days where I couldn't get more than 53 MB/s.