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AMD APUs, like the one that Steam Deck has, might get FSR 4 support next year thanks to the tech expanding beyond discreet top-of-the-line GPUs (www.techspot.com)
submitted 22 hours ago by to c/steamdeck@sopuli.xyz
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While the support itself doesn't necessarily mean OS-level toggle like the Steam Deck has right (which I believe is still at FSR 1), it still could be a nice touch for the titles that choose to implement FSR 4.

Maybe the community adds the OS-level support unofficially, somewhat similarly to Lossless Scaling right now (although perhaps for free). This is just my uneducated guesswork, please see this comment for proper expectations:

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[–] 4 points 19 hours ago (2 children)

If it never had even FSR1 support, how is it able to work at all?

I did not say this, where do you get that? I explained that FSR 1 is different from all other upsalers, it is not comparable to all of the other methods. FSR 1 is like a Photoshop filter, while the other methods have builtin data from game. You cannot add a Temporal Upscaler to a game that does not have any. You cannot use OptiScaler on a game that does not have any upscaling at all, it needs DLSS 2 or higher, or FSR 2 or higher, or XeSS, because those have the training data using Ai with the game builtin. You cannot use OptiScaler without any of these, or with FSR 1.

What exactly am I wrong about?

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  • [–] 2 points 19 hours ago (1 child)

    I am not saying you're wrong, I'm trying to understand what you posted. But I see what you mean now. I was under the impression the training data was specifically for the specific upscaler so FSR4 would need at least FSR2 supported natively.

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  • [–] 2 points 19 hours ago

    Oh, no no, I did not say or imply that. I was concerned about FSR 1 and the difference to the other upscalers. And the difference between the second new mode of FSR 4 that is not available on any other. So even if you have DLSS or FSR 3, you can only use the Temporal variant of FSR 4, not its ML-based variant (if I understand it correctly). At least that is what I said, so its probably true (self irony).

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