What are the render tabs different TYPE settings

Hello all. I have tried to search the manual for the TYPE setting on the render tab. I have two choices:

TYPE = Native
TYPE = NVIDA

What is the difference between them? The Native is the slowest but it is always default. Is there a way to make the NVIDA default without making custom rendering plans?

Example when choosing to render with the YouTube FullHD preset (source is Canon FullHD ALL-I):

If I have a 6 minute video with the following node tree: [Color->TempNR->SpatNR->Sharpen] and I use stabilizing and applies Noise Reduction on the audio and enables Equalizer I get the following render speeds:

Native = 12 f/s
NVIDA = 15 f/s

If I turn off both video noise reduction nodes the results for rendering are:

Native = 22 f/s
NVIDA = 75 f/s

I was wondering if the Native (default) type does not utilize the GPU at all, or if the NVIDA encoder i (written by NVIDA?) just does it better. Why do we have this choice when one is so much better. Saying that I had one case where I was editing a VHS 4:3 movie out to Full HD 16:9 and the NVIDA choice screwed up the output but the slower Native worked.

And I was looking for a way to make the NVIDA choice my default.

BTW my experience with version 17 has been excellent. It is the fastest and most stable resolve I have used since I started with the free version 12 and bought studio 15 some years ago.

Native is software, using the CPU. It's slower, but historically better quality.

NVIDIA uses the GPU. It's faster, but historically of lesser quality.

There's no way to change the default option. Presets will have to serve.

There are more types depending on your hardware. "Intel Quick Sync" is hardware accelerated just like on Nvidia GPU:s, but is physically a part of the CPU.

If BMD has implemented it there is probably also an option for AMD VCE (Video Coding Engine) if you have a modern AMD GPU.