In the theory of plate tectonics, the earth's crust is broken into plates that move around relative to each other. As a result of this movement, three types of plate boundaries are formed: divergent, convergent, and transform boundaries.
Graphics card temperatures typically range from 30c to 40c at idle and from 60c to 85c under load. Most high end video cards typically have a maximum temperature between 95c 105C, at which point the system will shut off to prevent damage. A video card is not considered to be overheating until it exceeds 90c under load. At this point, artifacting may start to occur up to the point of thermal shutdown.
In general, more RAM can make your computing more pleasant, and we certainly don't recommend against 32GB. But if you're looking for the best way to improve framerate, a better video card is going to make a much bigger difference than going from 8GB to 32GB, which may have no effect at all.