A NEW WAY TO MEASURE AND RANK PSU EFFICIENCY
You know those 80 Plus ratings on power supplies that are supposed to let you know how efficient they are? There’s now an alternative rating scheme from a company called Cybenetics called ETA and LAMDA that they say offer greater accuracy than the 80 Plus ratings we’ve come to know and love. The ETA rating measures power efficiency via “a unique, custom-made application to account for the efficiency results of thousands of different load combinations through a unique proprietary application” and assigns a rating of A+ for the most efficient and D for the power supplies least efficient. LAMDA certification tests for noise levels - the quietest of PSUs gets an A++, with noisy clunkers getting an E. Respected power supply manufacturer Seasonic is already on-board, embracing the ETA and LAMDA ratings for its flagship Prime units.