I think that I might have found a problem with OBS 0.651b related to Quick Sync with the intel 4600 graphics. I am doing a local save not streaming and I have tried quick sync with a few machines with no problems but with my most powerful machine i7-4790K trying to write with a 30000 bitrate, the preview window and play back of the video you can see that there are big pauses. If I drop my bitrate to 7000 it seems to work ok. I'm not sure what is going. I have a GTX 970 but not sure if it is the combination of things that is causing an issue or what. I have updated the BIOS and the intel graphics driver. The only thing that I have not tried is to go back to an older version of OBS. I just found where I can get the older version. I was just hoping that someone else could try and see if they have an issue with quick sync.
thanks
thanks