Why can Vegas Pro export videos with GPU acceleration, but Premiere can't?

Also, you have to know that Vegas PRO supports only OpenCL for GPU acceleration in H.264 and H.265 exports. No CUDA support. This heavily favors AMD GPUs in general, but some NVIDIA GPUs cannot use OpenCL effectively. As such, those particular NVIDIA GPUs permanently lock the Vegas PRO encoder to the CPU-only mode.

can you be more specific?

what kind of video? what format are you exporting to?

your premiere pro project workflow?

any plugins used?

effects?

do your sequence settings and export settings match?

system specs?

when you say exporting a  video, you mean a video file or a project?

workflows can be waayyyy different with waayyy different outcomes when comparing 2 different softwares

Every NLE handles what they do with hardware differently. It's mostly tradeoffs. I've been hanging in conversations with heavy AfterEffects geeks arguing whether certain things should be rebuilt into GPU use or not.

Someone says X effect would be awesome if done with GPU. Someone else is horrified because that would disrupt their carefully planned comps that use the way the app uses resources precisely.

If say the GPU was pegged for half the general encoding tasks, that would be good for users who don't use current "GPU Accelerated List" effects much.

But the tradeoff ... and there always is one ... would be less GPU available for all the color work that someone like me does.

And for those who live by Warp Stabilizer.

Pick your poison. It's inherent in the lives of those doing video post processing. No matter which platform or apps you use.

Neil