I have two power supplies a Rocketfish™ - 700-Watt ATX CPU Power Supply and a Thermaltake SMART M Series SP-850M 850W which should I use. I have a gtx 680 and and amd fx 4100 cpu.
Thermal take one is newer.
http://www.newegg.com/Product/Product.aspx?gclid=CNqSrt-X5boCFaxxQgodpzUA1Q&Item=N82E16817153158&nm_mc=KNC-GoogleAdwords&cm_mmc=KNC-GoogleAdwords-_-pla-_-Power+Supplies-_-N82E16817153158&ef_id=UoEvRAAAALXa@xO8:20131114210832:s
Rocketfish
http://www.newegg.com/Product/Product.aspx?gclid=CNqSrt-X5boCFaxxQgodpzUA1Q&Item=N82E16817153158&nm_mc=KNC-GoogleAdwords&cm_mmc=KNC-GoogleAdwords-_-pla-_-Power+Supplies-_-N82E16817153158&ef_id=UoEvRAAAALXa@xO8:20131114210832:s
Thermal take one is newer.
http://www.newegg.com/Product/Product.aspx?gclid=CNqSrt-X5boCFaxxQgodpzUA1Q&Item=N82E16817153158&nm_mc=KNC-GoogleAdwords&cm_mmc=KNC-GoogleAdwords-_-pla-_-Power+Supplies-_-N82E16817153158&ef_id=UoEvRAAAALXa@xO8:20131114210832:s
Rocketfish
http://www.newegg.com/Product/Product.aspx?gclid=CNqSrt-X5boCFaxxQgodpzUA1Q&Item=N82E16817153158&nm_mc=KNC-GoogleAdwords&cm_mmc=KNC-GoogleAdwords-_-pla-_-Power+Supplies-_-N82E16817153158&ef_id=UoEvRAAAALXa@xO8:20131114210832:s