I've been struggling for a long time (many years in fact) to get the minimum hackintosh requirements working on my laptop:
+Dual boot : OK
-Display: basic resolution, No QE/CI or native resolution
-External VGA/HDMI: not working
-CPU: speedstep not...
I have successfully installed Sierra with everything working (including graphics) on legacy bootloader (old GA-P55A- MB).
I also have a Radeon HD4850 with 512 MB mem.
It is detected, but it is detected with 7MB only, and the graphics performance is very bad and laggy.
This is the description...