Main memory accesses dominate energy consumption, so the lower your total memory bandwidth the less energy an algorithm will take. https://www.researchgate.net

Main memory accesses dominate energy consumption, so the lower your total memory bandwidth the less energy an algorithm will take. https://www.researchgate.net/figure/Data-movement-is-overtaking-computation-as-the-most-dominant-cost-of-a-system-both-in_fig2_260520373 https://www.researchgate.net/figure/Data-movement-is-overtak... The chart above shows a 1000x (3 orders of magnitude base 10) increase in energy consumption relative to a register move (it really should be called copy).