Switchable graphic just din't work
i already try
- Clean install --- chek
- Switch to high performance -- chek
- update newest Driver -- Chek
- High performance Power Plant -- Chek
every Update change R8 M445 DX to R7 M340
and when i updating/fixing via device manager, the AMD catalyst crash 
this is suck, even my sister Mac pro do better with intel HD graphic
Any Experience ? or Solution,,
