The second build is mine which im beginning to assemble the parts. This build cost me give or take 610$. The first build is something I found on craigslist for 650$. So go with my build over the one I found on craigslist?
Because the processor is a 6 core which is better then multitasking. Also since AMD makes console CPUS now new games might be optimized a bit more on the AMD side and use more cores aswell. By the way i would go for better quality ram like mentioned above. I think EVGA power supplies are fine but id get a little bit higher wattage for the future if you plan to upgrade. Also you might want to consider upgrading the CPU cooler to a hyper 212 EVO or something better then the stock cooler.
Good luck on you build and have a nice day. if you have any more questions you can PM me or just comment
Honestly id go for the second one aswell just because if you plan on ever doing video editing. it will be better the first one. The first one would be better for gaming though. not sure about the GPU again not a big fan of SLI