With the Phenom II X4 965, you shouldn't worry about *bottlenecking*. It's capable processor and if you wanted to, you can easily overclock it. Hence the "black edition".
Edit: Make sure you motherboard can have a max TDP of 125 watts in order to support the Phenom 965.
*heh sorry, put overclocking there instead of bottlenecking, apologies for that mistake