Lenovo Z575 AMD/ATI Radeon 6550M + 6520 Drivers Issue?

I have changed my system to windows 8.1 prof, from windows 7 ultimate and i'm having many difficulties finding proper drivers for my GPU.

official lenovo site provide quite outdated drivers for my gpu and still without Catalyst manager therefore it sux.

Amd site however has the latest drivers but it often makes my laptop crash with a bluescreen.

Standard windows 8.1 drivers are just average cause they doesn't provide much power. On lenovo site drivers on windows 7 i've had for example stable 150 fps on the lowest and 60 fps on highest graphics detal in league of legends and now? On any driver at windows 8.1 on lowest details its lagging with 40 fps going down to even 15 fps.

Does anybody know some website with decent drivers?

Laptop graphics cards are semi custom.
Valid drivers only come from the brand web site.
Not every computer is compatible to a newer operating system.

Your laptop has a graphics card released in November 2010
http://www.game-debate.com/...HD%206550M

http://support.lenovo.com/...eapad-z575
They offer a Windows 8 graphics driver from December 2012

Why did you change from Win 7 to 8? That is not an improvement anyway.
Go back to 7 where the system belongs and runs best.

#Andy L sorry for late answer, cause i find this system working way better for me i mean much quicker besides the graphic issues