I've been benchmarking quite a lot to compare cards / settings etc.
At the moment my Lexar 32gb 1000x can quite happily record at 74mb/s in my 5D II, however the benchmarks are only hitting around 62-64mb/s
I usually put the camera into video liveview (1920x1080 24fps), don't hit record or anything and then run the benchmark.
I don't think my results are accurate - what settings / how are you guys benchmarking?