I'm still not convinced that VRAM memory bus size/bandwidth makes a difference in color/picture quality. Need to look it up further so never mind.
From what I hear, AMD GPU's are power hogs unlike Nvidia GPU's even on equal grounds. Some of the latter are even more powerful using less power. AMD has design flows in power usage compared to Nvidia.
On other news, car coolant disappears with no trace or signs again. This time I changed the coolant reservoir cap as the old one seems to open easily. That's an impression of not holding pressure cause vapor to seep out with no residue signs.