[Someone]

"Do four 10mph car crashes do the same damage as one 40mph crash? If it can be properly coordinated."

I know this is totally unrelated, but it is worth correcting: potential energy is 1/2 m v^2, so that faster car has 16 times the potential energy as each of the slower cars. That is why braking distances do not go up linearly with car speed and why high speed accidentals are way more lethal than low speed ones.

I guess there is an analogy here that one double-speed CPU beats two single-speed ones for most tasks, but I do not think it is very apt.