Is this a good build?

[Kisamune]

Processor: AMD Athlon X4 860K @ 3.7GHz (Quad Core)

Graphics: Radeon RX 480 8GB (Base clock of 1120 MHz, boosted is 1266)

RAM: 16GB (2x8GB) DDR3 @ 1600MHz

PSU: EVGA 600 Watt 80 Plus

Cooling: Cooler Master Hyper 212 Plus

 

[Aeacus]

For everyday web browsing, this build does good. But for gaming, not so much.

Even though you have a GPU that can do high/ultra settings on 1080p, you'll also need CPU to back it up. Your CPU is very weak according to the today's standards.
Comparison between weakest Kaby Lake CPU and your CPU,
link: http://cpu.userbenchmark.com/Compare/Intel-Pentium-G4560-vs-AMD-Athlon-II-X4-860K/3892vs3265

Also, your PSU is mediocre quality unit.

 

[sizzling]

Its a bad build. The CPU is far too weak for modern gaming, a G4560 would be massively better but you will need a different motherboard and RAM. If not gaming you dont need a 480