FSR1 is a simple frame upscaler, it’s used as one of the methods for resizing the image when you render something at s lower resolution and stretch it to full screen, along with bilinear and integer. Very few games actually use it directly.
FSR 2/3/4 are temporal (time based), they need to be implemented directly by the game engine but if they do have FSR2, (like Deep Rock Galactic), it works on the deck.
FSR3/4 officially needs an RDNA 3/4 based gpu, which the deck doesn’t have, but the plugin/mod converts DLSS calls in to a RDNA 2 compatible version of FSR3/4.
FSR3 without the frame generation part might also work on the deck natively, though I’m not sure if I’m misremembering.
FSR1 is a simple frame upscaler, it’s used as one of the methods for resizing the image when you render something at s lower resolution and stretch it to full screen, along with bilinear and integer. Very few games actually use it directly.
FSR 2/3/4 are temporal (time based), they need to be implemented directly by the game engine but if they do have FSR2, (like Deep Rock Galactic), it works on the deck.
FSR3/4 officially needs an RDNA 3/4 based gpu, which the deck doesn’t have, but the plugin/mod converts DLSS calls in to a RDNA 2 compatible version of FSR3/4.
FSR3 without the frame generation part might also work on the deck natively, though I’m not sure if I’m misremembering.