This came to a surprise to me as I did not think DCS World was that CPU-bound.
Old build:
EVGA Z270 Stinger
Intel i7 7700K @ 5.1Ghz
G.Skill 3600 CL16 32G RAM
EVGA GeForce GTX 1080ti FE
HP Reverb G2
New build:
MSI x570 Gaming Carbon Pro
AMD Ryzen 9 5950x stock
G.Skill 3600 CL16 32G RAM
EVGA GeForce GTX 1080ti FE
HP Reverb G2
With my former build, when sit in the F-14 cockpit on the supercarrier in the Persian Gulf the CPU frametime would show between 30-40ms with the GPU showing pretty much the same, sometimes more. The GPU would be running at 85-95%.
With the 5950x, CPU frametime down to 15-20ms and now the GPU shows between 20-30ms... Same in game settings. My GPU now running 100%, the poor thing being force-fed with data !!!
Therefore, if you're looking to upgrade your rig, I would have a close look at the CPU first... I realize now what a CPU bottleneck would look like.