I want to know how much GPU RAM, System RAM, CPU cores, CPU frequency is required for better rendering with VP20. Which graphics cards and CPUs can give better performance?
See my signature for two benchmarks you can try with your own system.
Generally, a GPU with 8GB or more of VRAM is recommended. a CPU with 8 or more cores as well. 32GB RAM. That should give you solid performance, but obviously the more the better.
Look here
I can see that there is a hardware requirements for AI. Does VP has any AI feature?
Does VP has any AI feature?
Yes, it most certainly does - they are provided by a separate program called 'Deep Learning Models'.
The AI features in Vegas Pro 21 are:
Vegas Pro 21's features are outlined in https://www.vegascreativesoftware.com/us/features/#productMenu