nvidia geforce gtx 860m hardware acceleration

It does not use CUDA, but in most cases, nVidia’s CUDA drivers also support OpenCL. That will work for ANY OpenCL-compatible GPU. Vegas has a GPU setting - it’s the one you find on the Video tab in preferences. This has kind of been hashed out, but let’s repeat. I’ve updated my drivers, and now it says “QSV avialible”. “There is absolutely no difference in speed when using “Use GPU if avialible” and “Use CPU only”. In that case select the one that gives the best performance. The Vegas video preferences will list both cards in this situation. The Intel graphics make Quicksync available. It sounds like you might have drivers installed for both the Intel integrated and Nvidia graphics. You can have multiple video devices active. Sony just chose to expose this function under Sony AVC. Quicksync is a completely different encoder than the “normal” Sony AVC encoder. That is the QSV available message you saw. Use GPU when available (CUDA or OpenCL) and it also supports Intel Quicksync. Sony AVC file encoder has it own options separate from the Vegas video engine. CUDA would be applicable to your Nvidia card. Mainconcept AVC file encoder has its own options separate from the Vegas video engine. The Video engine is what assembles/composites your video from your various sources, and effects into a single video stream. Here you select the video device you want the Vegas video engine to use. Vegas has its own GPU preference under the preferences menu, video tab.

You need to be a lot more specific in your description.

Nvidia geforce gtx 860m hardware acceleration