AMD's new 12-core, $499 processor is a pretty big deal

Nowadays, most computer users don't need to worry about the exact specifications of the chips running in their machines — a mid-range processor will run the majority of common tasks without issues. 
But every once in a while comes a processor that promises to make everyday computers far more powerful without breaking the bankAMD's new Ryzen 9 3900X, launched at the Computex trade show on Sunday, is one such processor. 
The Ryzen 9 3900X is a 12-core, desktop processor built on AM