The AMD 7850K is a showpiece on how far AMD's integrated graphics have come. That is all it is, as an actual useful processor the applications for it to my mind are almost none existent. It's a jack of all trades and a master of none. It would make a great HTPC processor if it didn't run so hot but unfortunately it does... oh well.
As much as I like AMD their only processors that make sense at the moment (from a home consumer standpoint) are the 65w APU's in HTPC's, the AM1 platform for a NAS when they bring out more suitable boards and the FX 6300. IMO everything else is a waste of either money or power.