Colors and Buildings, what is most optimized?

Codybean1

L1: Registered
Apr 6, 2012
26
3
Is it better to have a building with a greyscale texture and use RGB settings to set the color or is it better to have a texture for each color?
 

Codybean1

L1: Registered
Apr 6, 2012
26
3
Alright. Just planning on making quite a few buildings and wondering if there was a right or wrong way to go about this.