With clean and stable power driving your PC via the Silent Force PSU - along with the multi-12V rails output and bead core protection for the PCI-econnectors and failsafe safety protections - the Silent Force PSU is one of the best quality power supplies on the market. The only downside is that the series maxes out at 850 Watts. If you're looking for a silent power supply for your PC, the PS-S850GE should definitely be at the top of your list - it even remains very quiet and cool even when the 135mm fan runs at over 1300rpm! This power supply will easily run all dual graphic card configurations with ease and is certainly equal to other power supplies in its class. However, if power is more important than quietness, check out Lian-Li's brand new Maxima Force series (among others). The only disappointment is that Lian-Li didn't go for its famous brushed aluminium finish, which would have looked much better in its cases.