Hey guys, just built a new machine and went with a very cheap setup, a $330 Amd Ryzen 1700 that comes with a very nice stock cooler, a $99 Asus Prime B350 Plus motherboard, and $150 of 16gb DDR4 ram. I've left it all stock and I did a couple of quick tests compared to my previous 4770k Haswell machine which was also stock (no overclocks on either), all done on Windows 10 with Vegas Pro 14. I reused my old NVidia 980ti.
Rendering a 30 second 100mps Sony AX100 source 4k clip with Film Convert and watermark effects to 4k output with Main Concept encoder in Vegas Pro 14:
Old stock Haswell 4770k machine: 5:48
New stock AMD 1700 machine: 2:54
Rendering a 4 minute 4k video previously output from Vegas with Main Concept encoder to 720p with Handbrake:
Old stock Haswell 4770k machine: 5:48 (again, yeah weird)
New stock AMD 1700 machine: 3:28
So I'm very happy with the new AMD processors, it's incredible how much you get for how little money. The total upgrade will cost me maybe $250 after I ebay my old parts. It's all run solidly for days now, the only issue is the bios is still very early so it can't recognize the full speed of my ram so it's running it at just 2133mhz but that will get sorted with bios revisions. I'm keeping it all stock for now, and may overclock it in the future. Anyways hopefully this is useful to other Vegas Pro users, this is definitely the most no brainer and cheap upgrade I've ever done.