VRD6 NVEnc CRF12 vs VRDX264-2PassVerySlowPreset.

jmc

Active member
Ok, got finished with my screen capture & frame zooming. NVEnc_CRF18 to 12.
Long story short...

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EDIT...
NVEnc (1660 Super) is about equal to VRD_X264-2pass-MEDIUM_Preset in quality.

NEW NVEnc on the new updated "1650 Super"...now equal to the other cards.
(That would have saved me $100 if it had been out before i had to buy the 1660 Super)
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I only did one MEDIUM_X264 test. CRF might have matched VRD6_x264_MEDIUM at a smaller file size.
Definitely was getting hard to tell. But never matched a "VerySlow" Preset.

I use a "VerySlow"_Preset and once I passed twice the file size it does not matter if NVEnc can match eventually or not.
Oh, a "VerySlow" HEVC Preset will kill you with old age.

Now if you are just watching a fast movie you and I will never notice how everyone's skin is so blemish free.
NVEnc...Very Very Fast and wonderful for your complexion. :)

Expensive experiment but I at least have a spare graphics card AND I can put my NVMe storage back in my PC.

EDIT....I had tried to compare a rose and was struggling to see any difference. Then I remembered that our brains have a
area dedicated to recognizing "faces". So frame captured the face of the model and "BANG" the differences were obvious!
She had light freckles and that was perfect as they would disappear with NVEnc or a light level of a X264 Preset.
 
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hydra3333

Member
Yep, most TV recordings are rubbish anyway.

Here, anything requiring transcoding would usually be from an SD (mpeg2) broadcast source of low quality, so deinterlacing with fast encoding and pretty skin would be fine ... and h.264 playback is ubiquitous :)

"HD" sources (albeit low bitrate by stringy broadcasters) you may as well just cut the ads and fast-frame-copy it, given disks are cheap and the h.264 files are small enough.

Can't yet find a reason to transcode broadcast sources to h.265 hevc !
 

jmc

Active member
Yep, most TV recordings are rubbish anyway.

Here, anything requiring transcoding would usually be from an SD (mpeg2) broadcast source of low quality, so deinterlacing with fast encoding and pretty skin would be fine ... and h.264 playback is ubiquitous :)

"HD" sources (albeit low bitrate by stringy broadcasters) you may as well just cut the ads and fast-frame-copy it, given disks are cheap and the h.264 files are small enough.

Can't yet find a reason to transcode broadcast sources to h.265 hevc !
I have never captured OTA signals so no idea of their bitrates.
But the VOD file downloads I do are about 2Mbps for 1080p and are good enough.
Look at the specs tho and you can see that they were not encoded at a "VerySlow" Preset. :(

Now if you are lookng at a SD dvd level VOD file then i would rather buy the dvd and do my own compression.
 
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