I have a no name SCART to HDMI converter which looks exactly like the one reviewed at
https://www.youtube.com/watch?v=pne94BxFHGYThis converter also does audio.
It outputs 800x600, 1024x768 and 1280x1024 as well as 720 and 1080.
The output is pretty good, much better than the Gonbes-8200 based converter that I have.
I haven't played enough games to get a feel of how bad the lag is.