Which be quiet! PSU to buy?

Krusteh

Commendable
May 25, 2016
61
0
1,630
I'm really confused here. My choices are the be quiet! System Power S7 500W, be quiet! Pure Power L8 500W, and Pure Power 8 500W. The links to those PSU respectively: https://www.computeruniverse.net/en/products/90491927/be-quiet-system-power-s7.asp
https://www.computeruniverse.net/en/products/90514559/be-quiet-pure-power-l8.asp
https://www.computeruniverse.net/en/products/90644199/be-quiet-system-power-8-80-plus.asp.
They're both around the same price but the System Power is 80+ Silver, unlike Pure Power L8 which is Bronze and the other one which is simply 80+. However, I can't find System Power in the PSU Tier list. So, which one is better?