This what I see. I'm using my GPU to render, not the QSV setting. Just didn't know if Magix was using an .mp4 version of the MC codec, as the other MC codecs listed are mpeg 1 &2; or if was missing an actual Magix render codec.

Yes, that is the software Mainconcept encoder.

Because x264 can't be used in commercial software. Therefore, general NLE manufacturers will use MainConcept as the CPU renderer of H.264.

But in general, the quality of MainConcept is much worse than that of x264.

Although x264 uses more compression tricks to maintain quality at low bitrates, the two are practically identical at ≥10Mbps FHD, as one example.

I just ran the ffmpeg6 objective quality measurements comparing vbr 24/48 and crf23, which yield similar bitrates, and they yield very similar quality across the board for x264 transcodes. Also compared transcodes using default template settings in vp21 Magix AVC which come in slightly lower in quality. For perspective, I also ran ffmpeg6 under Vegas using CuminCode Frameserver which is as close as a Vegas plugin can get at the moment to an ffmpeg-quality render.

https://docs.google.com/spreadsheets/d/1Qdvr3XMLNk298rY49_U5iq0L59VdHfYD/edit?usp=sharing&ouid=104047049686489929918&rtpof=true&sd=true

edit: updated to include the new (free) DebugMode Frameserver v5 (same results as Cumincode 4.21)

Just didn't know if Magix was using an .mp4 version of the MC codec, as the other MC codecs listed are mpeg 1 &2; or if was missing an actual Magix render codec.

It looks similar to Resolve's MainConcept AVC when I run it at 80MB/s for 1080P60 which is Resolve's default

Comparing default values for Voukoder x264 and Nvenc good settings to Vegas's MagixAVC Nvenc/MC defaults Vegas's results are poor in comparison mostly due to oddly low bitrates.