ill sell you my 950 so u can crossfire. jkingIt depends what else you want to do with your computer. If you want to stream then get more cores/threads. If you just want higher frame rates and gaming performance then a CPU with less cores/threads is fine especially if those cores are clocked faster, just spend the difference on the best video card you can find.
With my 6 core/12 thread AMD Ryzen R5-1600 system the biggest bottleneck in my system for gaming is the older EVGA NVidia GTX 950 FTW 2GB video card I am using.