ATTO measures peak performance so we aren't going to see much deviation there.
PCMark Vantage Light Use
Here we see a complete smack down. My kids watch this every Friday night on TV. One little guy gets into the ring with a big massive dude who just beats the snot out of the pretender. So far I wouldn't say we've hit the drives very hard, about what your Windows and Office installs would do with your swap file on the OS drive after a week of use.
Even though we haven't hit it very hard, you can see a massive performance difference between these two sets of numbers. The 5.03 is very close to the FOB performance of roughly 79-80K, but the 5.0.2 is already showing signs of a stubbed toe.