right right, i here ya, I agree, don't think they can handle 1300 watts, but they work for my purpose. I picked these radiators because I wanted the hose to come out the back instead of the side. I actually only wanted one radiator, but one came dented due to bad packaging, so I was gonna send it back, but Performance-pcs sent me a new one and said to keep the damaged one, so I pressure tested it, and it was still ok, so I just used it anyways. Thats why I got two, and only had 4 fans at the time. I was broke.
As far as cooling, I thought any quad radiator should be enough (had only one gtx 480 at the time).
Don't really know what else to say... meh... LOL