NVDIA NVENC (GTX1080Ti 11Go) Vs x264 (AMD Ryzen 7 2700X)

[PerfectCatch]

Hi,

I'm asking my self what is I think a very commun question but I didn't find any satisfying answer. Here is the deal : I will do a live stream on youtube, with multi camera and several microphones. I'm searching to have the best encoding parameters as possible for the stream, and for the recording because I will be recording the live too on OBS.

My netowrk is good (40 Mb/s upload) so I set a good bit rate 6Mb/s for streaming 1080p25)
Here is my hardware :
CPU : AMD Ryzen 7 2700x Eight-Core, 3700MHz
GPU : NVDIA Geforce GTX 1080Ti Gaming OC 11G

Here is my question : should I use x264 or NVDIA NVENC encoder in order to have the best quality possible ? And should I use both of them (one for the streaming live, and one for the recording ?)

I've read that x640 offers the best quality. But is this still true today ?

I've been running some test to see my PC performance :

When I'm streaming + recording with x264 :






and when I'm streaming + recording with NVDIA (screenshot with this post) :






Thanks for your help !

 

[zeus.olymp]

Hi PerfectCatch,

the NVENC (new) hardware encoder gives you a comparable quality as x264 "medium" setting at the same bitrate.

For more details, have a look at following resources:
NVENC vs AMF/VCE vs QuickSync vs X264 - ULTIMATE Encoder Quality Analysis (2020)
Encoder Comparison NVENC x264 Quicksync QSV VP9 and AV1 (2019)