I noticed that the time for encoding a video in Premiere with GPU acceleration enabled doesn't change according to the shaders clock speed. The time is exactly the same with or without GPU overclocking, is this normal?
Another question: the encoding speed is faster during the first 50% of the process, then decreases a bit. Is this related to some option in the program or it's normal?
Thanks in advance.
Yes. The GPU is not involved in encoding, that is a purely CPU matter.
Normal for 2-pass VBR.