Running 8.970.100 (13.4) driver with Radeon 4890. BF4 works OK, except dropping into the teens during heavy action. BF4 averages via Fraps at 34 FPS. High 70 FPS, Low 15 FPS. Didn't uninstall old drivers, just installed new over top. Still too laggy for me, getting 7970.
Hy,
i had the same problems with my HD4870
but thanks to the guru3d Forum and dellon132 I managed to get it running with a driver renamer.
http://forums.guru3d.com/showpost.php?p=4487884&postcount=1
bevore that I tryed a lot from inf data renaming, manually installing all drivers, win7 drivers... that was the thing that worked.
I hope I could help you.
See you on the battlefield
