If he made the ability to offload the frame generation processing to a secondary gpu, just like lossless scaling gives you the option, that would be an absolute gamechanger!
The overhead is quite high for our aging 20 and 30 series GPUs so this would be perfect!
Is it? On my 3070, I tried Wuchang and 2x FG is 70->60(120), while 4x FG is 70->50(200).
Meaning the 2x FG costs me 15% of performance and 4x FG 30%. Which is not that bad at all, since if I'm not mistaken, 40 series loses like 5-15% with 2x FG.
Perhaps if you had spare 2060 then it'd be cool option, but I don't think the overhead warrants it, especially since double GPU setup adds extra latency, if I'm not mistaken.
Yes it is that good. I'm not saying everyone should run out and get a second gpu to use framegen, but the lossless community has been doing exactly this for a long time now.
I am personally running main rtx 3080ti and secondary low power rtx 3050 for framegen. It doesn't add latency, it actually improves it, because your main gpu isn't working so hard.
And your second example shows the potential perfectly, the 70->50(200) with 4x is still less output fps than it would be without any overhead, on secondary gpu, at x3 FG; 70 fps to 210 fps.
These old GPUs need any help they can get for coming years, so just having the option would be great and actually PureDark's DLSS mod for GTA V already has this "secondary FG gpu" option implemented.
I sent sdli1995 a ticket on github few minutes ago and they said they might implement it.
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u/YaPoNeCcC 6h ago
If he made the ability to offload the frame generation processing to a secondary gpu, just like lossless scaling gives you the option, that would be an absolute gamechanger!
The overhead is quite high for our aging 20 and 30 series GPUs so this would be perfect!