The HG650 offers good overall performance and thanks to its HDB fan and Japanese electrolytic capacitors its reliability should be excellent as well.
FSP Hydro G series stands for the needs of PC DIY enthusiasts and gamers who want a high end PSU with stylish ID design but do not want to compromise electronic performance at all. By server grade circuit and advanced thermal layout design, Hydro G series deliver full load (wattage) at 50°C ambient temperature. Silent operation is considered by intelligent fan speed control circuit design with 0dBA function to fulfill gamers need in playing games.
The Hydro G series consists of three 80Plus Gold units, ranging from 650W to 850W. All three units are based on the same platform design and FSP has supplied us with the middle option, the 750W model, which should give us a good look at the quality and performance of the series.
The FSP Hydro G 850W Power Supply has a lot going for it. For the reasonable price of $140US you're getting a unit that's Gold certified, has Japanese capacitors, comes with a 5 year warranty, is completely modular, looks sharp and is virtually silent.