What you are seeing now is that it's far more complicated than "bigger number better". There is ALWAYS a bottleneck somewhere and that is the very reason we say to purge that term from your vocabulary. Building a system and what parts you choose depends solely on WHAT YOU WILL BE DOING WITH IT. Right down to the specific titles you play (if gaming). There's always going to be some game that is optimized for AMD/Intel/Nvidia, or that leans heavily on RAM speed, or storage speed. Don't loose the forest for the trees and go off spending hundreds or thousands of monies chasing a moving goal. If you are absolutely unhappy with how your system performs, then by all means upgrade. But if you are concerned with a few fps, or slightly low 1% lows then you should sleep on it. Yes, that drive is constrained by the bus and you paid good money for it, your GPU may be too. But is that 2% performance uplift worth $200 or whatever? That's up to you. What I'd do is take that money, put it away for your next AM6(build) and just play games now.