Hello.
I recently bought the notebook dell Inspiron 5565 That for what I understand, works with two graphics cards. The "AMD Radeon R8 M445DX" and the " AMD Radeon R7".
The problem I have is that I do not know how to do it so that when opening a game use the card indicated for it.
Since for example to open the Gta V of steam opens it with the main card of 1 gb and not with that which should bring 4 gb
I hope you can help me and sorry if something is not understood but I use a translator.
I have the same issue with a different game, but I can't seem to be authorized to access that "how To" document...
Do a google search for > how to configure AMD laptop graphics
Just done it... and it brings up another issue: when I first tried to solve my problem, I updated my AMD Radeon R7 driver, which had 2 major consequences: R7 was upgraded into an R8, and now the "switchable graphics" tab has disappeared from the AMD control panel.
Your probably trying to install the wrong driver. You need to read this > Laptop graphics update...How to
Dell Inspiron 15 5565 Specs - CNET
The correct driver:
The same… R7 updated into the R8, and now AMD Radeon Settings is not working at all. And the graphics memory is still 512 mb 
okey, I've uninstalled all previous drivers with AMD clean app, and then found driver for APU that I need, nothing has changed 
How to Configure Laptop Switchable Graphics