Maybe you should use the texture of the screen on one side, and the texture of the circuit stripe + metal background + a “core” in the middle. The color of the side is the same as that of the processor. As for the versatile processor, one color can be used in each quadrant.
Also, graphene is currently not available in the survival mode, leading not to of the most advanced turbines to crafting, which way will it be obtained in the future?
EDIT:I drew textures of some quadcore processor units, including screens and others.In order to look better, I used 32x32 size, because they will not be used in large quantities, so it will not cause too much rendering delay. The background used a more technological dark blue-grey, which can better foil the light stripes. I think it’s cool. 
@Gregorius
