2014-11-24, 20:51
I just ran it on my i7-4790K (a mere 4 cores at 4GHz - sorry, I can't compete!). It re-encoded a 1h25m BR rip animation in about realtime - much the same as an x264 encode on this material, although I'm not claiming any scientific validity for that observation, as I can transcode 1080p live action in realtime as well.
All other settings the same (notably RF20 with the same decomb and key-int settings) and it spat out a file size of 3.0Gb versus 3.6Gb under H.264. Okay, hardly a detailed, grainy, fast-moving source, but it gives an indication. The good news is that I can't see the difference in quality when playing back in VLC (Kodi not tested, I don't have Helix on this system); the bad is that I see CPU load go from ~ 5% to ~15%, which would kill a low-powered system without silicon assistance.
All other settings the same (notably RF20 with the same decomb and key-int settings) and it spat out a file size of 3.0Gb versus 3.6Gb under H.264. Okay, hardly a detailed, grainy, fast-moving source, but it gives an indication. The good news is that I can't see the difference in quality when playing back in VLC (Kodi not tested, I don't have Helix on this system); the bad is that I see CPU load go from ~ 5% to ~15%, which would kill a low-powered system without silicon assistance.
