Wanting in-depth description of CBR, VBR, & NVENC Encoding

Kanile-Scott wrote on 5/25/2022, 8:43 AM

I’ve been working with Vegas Pro for a very long time. I currently use Vegas pro 19 and I’m familiar with lots of features in the program. However, I don’t have in-depth knowledge of certain render settings and want someone to elaborate on them.

I currently use VBR 2-pass for all my videos because I was told that it provides the best rendering quality, but the rendering times are insane, and I want to switch to GPU rendering.

I’m interested in having these questions answered.

1. What is CBR, VBR 1-pass, and VBR 2-pass (I want this explained in-depth)

2. Which Intel Quicksync preset provides the best quality?

3. Which NV Encoder preset provides the best quality?

4. Do the NV Encoder provide better quality than Quicksync?

5. What is RC Mode?

6. What RC Mode with the NV Encoder provides the best quality

My setup:

I use Windows 11

I work with Vegas Pro 19

CPU: 12th gen 12900h

RAM: 32-gb of DDR5 memory

GPU: RTX 3070 ti (150 watts)

8gb GDDR6 VRAM

Laptop: MSI GE66 Vector

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Comments

stevecrye wrote on 10/27/2025, 10:24 PM

That may be true, but I still need information on the various settings in the customize template dialog. I'm using MV 20 and it is fast with my AMD card.