Right, FSR 4 has been in development for like 1.5 years.I think PSSR and FSR4 are separate entities. FSR4 is much newer and designed around RDNA4 hardware, PSSR started life in 2020/2021 when Cerny designed Pro hardware.
My prediction is that Sony will drop PSSR and use FSR4/5 on PS6 (FSR4 looks to have better quality than PSSR already).
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AMD plans for FSR4 to be fully AI-based — designed to improve quality and maximize power efficiency
The team in charge has already been working on this for 9–12 months.
Also AMD said that FSR 4 requires 779 TOPS, compared with the 300 TOPS that PSSR uses. And finally in the presentation, AMD seemed to be claiming that the Performance (not Quality) mode delivered similar image quality to native. If true, that would put it closer to DLSS 4 than PSSR.
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