Adobe Premiere doesn’t use much RAM contrary to popular belief regardless of what you allow it to use via preferences. Adobe Pr doesn’t appear to be using AVX at all (which might be one reason it’s so slow) and even though I have GPU acceleration enabled it’s barely being used.
My recommendation:
AMD 5950X (16C/32T) has fastest single core and multi-core operation
64GB RAM
M.2 NVME 2TB drives (several) for “working” project data (archive to NAS when done)
GPU (take your pick, none of them seem to do anything in terms of improving Pr render performance) … I’ve tested with a Titan XP, Titan RTX, 1080Ti, and a few others and render results were almost identical.
The biggest challenge you’ll have is actually finding the CPU/GPU at “reasonable” prices due to Crypto-miners and Scalpers. I would NOT recommend buying a pre-Built PC, especially not in the current electronics shortage problem … they will put in all kinds are low quality parts as nothing else is available.
But as you can see from my screen shots with Pr, Ae, Ai, Me, Ps all open with projects and Pr rendering 6 video track project in 4K with Proxies, nested sequences, Mocha Pro, BCC, etc … never got close to 64MB RAM usage.
Compression will slow Pr down but even HiRes or other less compressed format it’s still slow, low Res Proxies Pr is the best option but that’s also still slow.
Cheers, Rob.