I just built a new PC with a goal of significantly reducing my render times. They did improve from my 6 year-old Haswell build but not by nearly as much as I had expected. Watching Windows Task Manager during a render shows that Vegas Pro is using roughly 30% of my CPU power, about 30% of my available RAM, 20% of my GPU, and uses just a small fraction of the bandwidth of the SSD drive that source files are stored on. In other words, the PC has a ton of raw power but only a small slice of it appears to be called upon by Vegas Pro. Logically, I'd expect to see a bottleneck somewhere but as far as I can tell there's no part of the system that's being hit hard. My system specs are as follows:
CPU: AMD Ryzen 9 3950X
GPU: Nvidia GTX 1080 ti
RAM: 32GB DDR4 3600, Timing 16-16-16-36
The drive I read from is a 2TB NVMe PCIe M.2 2280 Internal SSD. The one I'm writing to is a SATA III SSD.
I have no idea why Vegas Pro is tiptoeing so gingerly through my system. The funny thing is that even in my old 6 core system which I would have expected to work really hard to run the software, the utilization wasn't that much higher and even the CPU was only at 50%. If anyone has any ideas how to find a bottleneck or otherwise goose Vegas into working harder, I'd love to hear it. Based on what I see at the moment, it seems like render times could be half or even a third of their present time and it would be great to get anywhere near that.