What is the difference between the GS and G2 models? Is there one? Does anybody have any idea??
they are both very good, top tier power supplies. as Dimwit stated, the new 850GS is based on Seasonic's popular and excellent KM3 platform. the GS is physically smaller than the G2, optimized for quiet operation (even though the G2 is very quiet IMO) and has a few more pci-e cables than the G2 (too many for an 850 watt unit IMO). the G2 has a longer warranty. if choosing between them generally go with whichever is cheaper at the moment. if you like the 10 year warranty the G2. if you have a mid tower case an would like a regular sized psu, the GS.
850 GS review:
850 G2 review:
The GS is made by Seasonic. I haven't seen any reviews for it so I don't know the merits but Seasonic is a good platform. The Super Flower G2 is renown.