hi toms hardware, today i saw a custom low end gaming rig on craigslist, that had an NZXT source 210 case, amd a10 5800k, 4gb of amd performance ram (1600mhz) a 550w PSU, an MSI FM2-A75MA-E35 motherboard, and a wireless PCI adapter. He is asking $200. My question is, if i bought a higher end graphics card, such as the amd r9 270x, or maybe a nvidia gtx 760, would the performance of the a10 5800k bottleneck the graphics card? and i know that the iGPU will be disabled with that high end a card.