Unless you do a lot of video transcoding, then you'll be fine with the i5. Remember to get a decent CPU cooler and a z77 motherboard so you can overclock it (which is necessary to run all playable games at fullspeed). Also, what GPU are you planning on getting?
OS: Windows 10 64 bit Professional
CPU: AMD Ryzen 5900X
RAM: 16GB
GPU: Radeon Vega 56
CPU: AMD Ryzen 5900X
RAM: 16GB
GPU: Radeon Vega 56
