Just built a new HTPC with a 9700k running Windows 10. Thought I could finally use HW transcoding for my 4k content. HW transcoding works but it buffers a lot. CPU sits at around 10% and GPU is around 30-40%.
Strange thing is, I get no buffering when I turn off HW transcoding. I thought HW transcoding with Quicksync would provide better performance? Not sure if it’ll make a difference but I do plan to eventually install a 2070 Super when they are more available.
Not a huge deal as I use Kodi at home and only use Plex when I’m traveling and my library is shared with 3 others. One of the users is able to direct play so he’s not a concern. Is there any tweaking that I can do? Or should I just turn off HW transcoding?
I think there are currently some issues with this cpu, plex has a new transcoder coming soon (don’t know when, no eta), that should hopefully fix this and numerous other issues with 4k.
Just a quick update. I picked up a MSI 2070 Super Ventus. HW transcoding now works flawlessly every time.
One thing worth noting though… I thought the Geforce cards had a 2 transcode limit? I got up to 6 4k streams before it started to buffer and that’s probably because I was saturating the NIC at that point. I was prepared to do the driver hack but I figured I’d try more than 2 transcode before I hacked them only to find that it’s not needed.
Anyone know if the limit was bumped up or removed on the Super cards? The NVENC matrix doesn’t seem to be updated to include the Super cards.
well the limit is for encoders, which will be for 264, which is not necessarily that difficult (we have been doing cpu transcoding 264 for many years).
so it is likely that you didn’t notice because the gpu was still doing the decoding 4k x265 (which is the hard part).
you should also check out the newly release transcoder update.
