Mouser Electronics

Article: Power Density v. Power Efficiency

Chasing power conversion efficiency percentage points is a game of diminishing returns unless the improvement results in smaller products, leaving space for the equipment that directly adds to the bottom line. This article examines the costs of chasing percentage points of power conversion efficiency in energy saved, acquisition/disposal costs and cabinet/floor space utilization compared with increasing power density.

See the full article here: https://www.elektronikfokus.dk/wp-content/uploads/sites/5/MRUA104A.pdf