Before Vulkan, there were more bottlenecks on multithreaded rendering. Most games pushed everything to a single drawing thread.

Hopefully going forward that will change, but even with Red Dead Redemption 2's Vulkan implementation, a 6 core Intel/AMD chip is competitive with this processor at lower settings/resolutions where the GPU is less of a bottleneck.

Compute bound games like Civilization 6 do scale with processor count however.