A Guide On The Perfect Gaming Setup For 2018 (Graphics Card, Processor, and RAM)

Keep in mind that once all the cryptofags all hang themselves the GPU prices will drop back to normal. 400$ is quite overpriced. And don't underestimate AMD, they're making a huge comeback with the Vega series.
Also, 8GB is like the minimum for gaming now. Give it a 16GB.
The CPU can be swapped out for almost anything tbh, it's not that important. AMD FX8350 is an 8 core 4.0gHz that's a lot cheaper, uses an AM3 socket, and can easily be overclocked to 4.2GHz just like that Intel. Oh, and doesn't have the turbo boost meme.