If I install a driver next to 15.12 my card is displayed as disabled in Radeon Settings and in dxdiag doesn't show at all (it should be displayed as something like render/rendering)
So I don't know if my notebook does use the dedicated graphic card when I need it. And I have to keep version 15.12.
Sadly Toshiba last AMD display driver is 15.201 so even older than 15.12 witch is 15.300.
Because of this I can't play some new games cause 15.12 driver doesn't have the fixes and optimization I need for the games.