My rig is a Ryzen 7-1700 w/ 16GB ram, a bunch of hard drives with a SSD for the OS drive- Windows 10 Professional. My video card was/is a GT 730 2GB. I use the donator version 2.4 v11 of MCEB and have HW encoding enabled.
Earlier this year I began capturing some old half hour TV shows via my Roku and a capture box. I use OBS Studio version 23.2 (latest) with basically default settings (1920 x 1080). I did stretch the screen since the shows are in an older format. The end result picture looks great on a HDTV! After the box captures the file, it goes to my HTPC, where MCEB picks it up & processes it using the HEVC MP4 codec. I created a special setting for these shows since they have no ads- no need for Comskip.
Under the GT 730 setup, the rough file was around 470 MB. MCEB knocked it down to around 220 MB. I need these to be as small as possible since there are like 40 episodes/season and I plan on archiving all of them.
After doing a lot of reading, I decided to buy a better graphics card. I got a good deal on the GTX 1660 ti and installed it. I updated the drivers and used the H265 NVENC codec under OBS. After the below results I also used the H264 codec (presumably the same one the 730 used?) and got similar results.
Processing times in MCEB dropped dramatically- like from 40 minutes to 9 minutes, and this took the load off the CPU, which before when processing 2 streams would hit 100%. I was disappointed to see that the end result file sizes were almost as large as the original capture file (well over 400 MB).
I experimented with a number of settings such as bitrate but could not get the same level of compression. I ended up returning the 1660 and reinstalled the 730. My first file conversion and things were back to normal for processing time and file sizes. Since it’s a dedicated machine, I can run the conversions off-hours, but I was expecting far better results, especially since Nvidia and OBS worked together on the latest OBS version. If I was doing something wrong, I’m not sure what it was.
I’m curious if anyone else has seen something similar using an Nvidia card? I’m curious if a more basic card such as a 1050 may work better.