I recommend you to install the most recents, maybe should you read in this some forum there is few thread related to the 7800x3d , they are rich of information and story of people not having expected performances
for amd drivers , I m sure you can found the last here, and can consult your driver within the windows device manager
not sure about your motherboard wich link to provide you since there is various model called 650 like carbon tomahawk ect but bios version can be seen by accessing to the bios at startup