Nividia is The most popular with good components. I've used Nividia all my life with a lot of driver installation issues. Some to the point of almost destroying my motherboard my repair guy said once when I installed new Nividia drivers over old ones, without deleting the old ones 1st. Anyways I've gotten sick of those types of problems and also the Intel processors. I noticed over the decades of having many many computers both kinds AMD and Intel. Intel's always ran way hotter and would very often shut down due to overheating. The AMD on the other hand with equivalent or even lesser "power" never seem to run even half as hot. So now I Own a 6 Core AMD CPU Clocked at 4.1, ASUS MB with 16GB that run at 1100 MHz Clock speed Ram with Compatible XFX AMD 460 4GB GPU with a 1200mhz Clock speed. Tossed in the Cosrair liquid cooling system just because screw it AMD is soo much cheaper than Intel. Was a total of $900 brand new with warranties for everything Including my 24" LG 3D Monitor. What I'm trying to get at really is, the Most Important thing you need to look for is Clock Speed in MHz.
Like for internet people think 200Mb download speed is going to make gaming faster when in reality that has nothing to do with gaming or streaming. Latency speed is what determines you gaming and streaming throughput. Hope this helps