I hope someone here from AMD will read this and move it to the right peoples.
In BF4 and all new driver (14.4, 14.6, 14.7 b) there were randomly Errors.
Vertical stripes, Directx Errors, AMDKMDAP failures, and some more.
Nobody knows whats going on and nowhere i could find some help. Interesting: Probs starts after Battlelog and or BF4 update in July.
I tried Mantle -> same issues
Ok, i fixed it for me like this way:
The default setting was GPU at 1100mhz and the Memory clock was at 6000mhz (Gigabyte R9 280x OC !!!)
Playing Bf4 without Errors need this setting:
GPU at 1000mhz and Mem Clock at 5400mhz!
So, please investigate it.