As this issue seems to have been resolved with new drivers I'll mark this thread as solved now.
Yes, we already know it is an AMD related driver issue in combination with something specific in BF4. AMD and Dice have already acknowledged this as a known issue but it seems to have been put to the side (and forgotten?)
So while it is a certain combination of factors that appear to trigger it (Win8 x64, AMD 6/7xxx, BF4) the fix needs to be coordinated between AMD and Dice as it may be code from either, or both, of them that is causing the issue.
Dont know if this is the same issue but it seems like it. I have an i7 930 6gig ram & a ASUS ROG HD7970 Matrix Platinum with 3 gig of onboard ram bf4 plays ok for a while but then i get this message http://i405.photobucket.com/albums/pp140/royslade/IMG_08991_zps6bd21fe1.jpg PS. I get a similar message when trying to use Mantle ;( I then have to reboot pc
