The new model HX650, model HX650 (75-001230), is 80+ Gold but the original HX650, model CMPSU-650HX, was 80+ Bronze; I point this pot because both boxes would be labelled as the HX650. What is your budget? What are your system specs? Where are you buying? All three are great PSUs...I wouldn't have an issue recommending any of them so I'd probably chose the least expensive of the three.