So I have purchased everything my computer needs except the GPU. The one I have picked out is the MSI Gaming R9 390, I know a guy who has it and I like it due to the 8GB of Vram, and high performance. I am worried, however, that the FX-8370 processor (already purchased), will bottleneck the R9, because I have heard that AMD CPU's aren't great. So, what I need to decide here is do I get the 390, or downgrade to say a 380. If my CPU allows for it, I would greatly enjoy the 390 (maybe even the 390X?), but if the CPU would bottleneck it, I would want to downgrade the GPU, as I dont feel like buying a new CPU/mobo.
Full part list: http://pcpartpicker.com/p/PwLB8d
Thoughts?