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One card is clearly more powerful than the other so it's your choice depending on your needs. There is no simple answer to your final question but a quick search of these threads will give you more information including a thread dedicated to using LSFG and SVP. But short answer, SVP out of the box and LSFG are very similar.  If you decide to use SVP with RIFE AI then MadVR adds extra GPU overhead which might favor LSFG which will be lighter on the GPU. LSFG and SVP can be combined. But with some considerable work and a decent GPU then SVP by itself is best overall. 

But the end result might depend on your usage and tolerance for artifacts. I have a low tolerance so I put in the work to get the best results with SVP. Others on here are fine using SVP with RIFE AI (for example) for smoothness and accept the artifacts or are lucky enough to watch content like Anime that doesn't highlight them too much.

If others want to give you a more definite answer then good luck because there are too many variables for any definite answers to make sense. But you may only understand this after you make your decision and try things out for yourself.

Just a reminder for those of you with Nvidia cards. Remember to set the Power Management Mode to Prefer Max Power. I forgot to set this on a different computer and although SVP still worked well, I wasn't able to optimise it to the fullest. In "Normal" power mode with SVP running, my GPU "rests" at about 103w. But in "Prefer max power" it hovers around maximum and never goes below 120w. The extra 20w removes any remaining artificial SVP bottleneck.

Now we don't need that as I explained in your thread and it is practically impossible to do a good job with SVP which unlike DLSS is an external interpolation technology.

RIFE doesn't do anything. It's just an engine. SVP has the option to downscale.  By default any downscaled output will be upscaled if run on a higher resolution display. Or you can control the upscale yourself with a media player. Check the SVP manual for details.

It's a more recent mpv version but not the latest, and it's not slower. Profile=fast will make some difference, but not enough to stop major packet loss. With this GPU, changing to hwdec=no will almost certainly perform worse than hwdec=auto.  I also wouldn't use those SVP settings as some of them could be causing problems for your CPU as well as your GPU. Better off using Automatic after SVP checks performance, then start to tweak from there.

Also it's worth restarting SVP every so often otherwise performance will begin to suffer (possible memory leaks?).

Shame though coz now I've worked out how the original settings were created I was able to make more sense of what should actually be changed. Most of the changes in the OP are not unecessary at 120hz and with some tweaks probably not needed at 60Hz either. But no problem. Cool

I think I understand how the previous list of settings were created. Once that clicked, it made it easier for me to make some changes and revert a couple of settings back to default. Short version; remove the pnew and pzero penalties. I also set lambda penalty to 4.0 but this is pure guesswork. But with these changes I was able to revert Decrease grid step from local, back to global. I also disabled Artifacts masking but I assume this was overridden anyway.

I see a few people have downloaded the config and I would love some feedback. I'm particularly interested to hear about smoothness or lack of and CPU/GPU type and usage. I'm thinking about modding this for 60fps but not sure if that would be interesting since I'm sure others have already done that.

It's been an interesting balancing act trying to get the best out of all scenarios. RIFE like fast action smoothness & RIFE clarity are two separate things. Hugo intro style multiple types of complicated slow pans are another. The main thing I learned is that SVP default settings are mostly correct. I tried many of the other modifications and they usually make things subtly worse. But a small change in block percentage from 20 (the default) to 24 seems to be the last best mod I can make to my configuration The multiple complications of Hugo are dealt with better than ever, while not impacting normal slow and fast pans.

The good news is that GPU usage is almost halved. So CPU usage is now 2x GPU usage with peaks of 3x and rare peaks of 4x GPU usage.

I've previously suggested exactly this and I have posted settings based on augmenting the Automatic Profile. My current settings do the same thing, but taken to the next level with overrides.

It depends on the size of the screen. On very large screens, just as upscaling to 4k can make the movie "appear" to be sharper and clearer. A reduction in resolution can also become noticeable in certain movie scenes.

As previously explained, going from 24fps to 60fps is one thing, but getting to 120fps is another. My settings provide a rock solid smooth 120fps and almost completely passes the Hugo test , but that's with the display already running at 120Hz. There are (let's say) more GPU efficient ways of achieving the 120fps goal. The issue isn't just the GPU though, SVP itself is part of the bottleneck. So I would not recommend using my latest settings on a 60Hz display. Looking at what the full set of overrides did on my CPU, @raider10 might be hitting both a CPU and GPU bottleneck. I do recommend using my previously posted settings as a baseline then using the appropriate overrides to reduce the possible SVP bottleneck.

Oh I've improved it all right lol and I will post the settings. Also you may be right about the CPU because I heard my PC fans spin up and when I checked it was the CPU being hit a little harder than before. Are these settings better than RIFE? lol All my previous settings on this thread are better than RIFE. My settings on the other thread the same. The settings you provided are way better than all my previous settings but is specifically designed for 24fp to 60fps only, so it needs modding for different setups.

My attached settings are for my setup running at 120fps so you may need to add the multipliers in the original post to these settings. I mentioned before that I added estimation complexity and you will see this if you compare it to my other posts. Also, I'm going to re-emphasize that I can see the aura artifacts mentioned in the original thread as well as other fleeting artifacts that you don't see. I don't just see micro-stutters, I see nano-stutters. Finally I am very sensitive to interpolation drag or delay which literally make my eyes feel like they are being dragged in the same direction as the camera pan.  So some of these settings are going to be overkill . But you asked for it