Yeah, I think you will see some bottle necking, but its probably not something that a good OC won't help, though you may still get one. That cpu should overclock pretty well too, just make sure you cool it well (even a CoolerMaster 212 will do it). Intel is a better CPU, but sometimes, we've got what we've got. I ran a 965BE for a while and it never failed me even though Intel's chips are faster. I, like most people, upgrade one area at a time. If your budget can handle a platform move, I would wait until next month for the new Haswell chips and boards to come out and do the gpus later, like third quarter if you can.