I have noticed a big difference already, i couldnt even access the bios Q-flash without it constantly freezing, after 6 force restarts i had to result toward downloading @BIOS software and flash it inside windows. The out of box bios were terrible, can't even access your own product? thats not quality.
I have not tested yet but RAID0 64bit Drivers are suppose to work now aswell. Not really feeling like reformatting all over again just to get a personal test, but othes say they work now.
I Mostly use RAID 0 because of my SSDs and they FLY in an array function and not being able to use them at full potential is quite a hinder from another peice of hardware flaws.
As for the version CPU-Z stats otherwise its F3b, if you could direct me to F3c id be more then happy to update this and try it out.
Also note the Southbridge "SB850" looks like Gigabyte skipped corners and rehashed there past gen products, atleast have the decency to mask it so it looks like a 950...