AMD doesn't recommend using a GTX 1060 with frame-rate boosting FSR 2.0

pcgamer.com:

Older graphics cards from AMD and Nvidia may not reap the benefits of AMD's next-generation upscaling technology, FidelityFX Super Resolution 2.0 (FSR 2.0). AMD released a list of recommended GPUs for various resolutions with FSR 2.0, and some Polaris and Pascal graphics cards are notably missing, including what is still the most popular GPU today, the Nvidia GeForce GTX 1060.

AMD's new upscaling technology represents a major leap for the red team. From FSR 1.0 to FSR 2.0, AMD has flipped from a spatial upscaler to a temporal one, and with that reportedly offers a great uplift in performance and quality.

The downside is that it may be too intensive for some older GPUs. With a target resolution of 1080p for FSR 2.0, AMD recommends an RX 6500 XT or RX 590 of its own cards; or a GTX 1070, GTX 16-series or above from Nvidia's lot.

At 1440p, the recommendations increase to the RX 6600, RX 5600, or an RX Vega GPU or above from AMD; or a GTX 1080, RTX 2060, or RTX 3060 or above from Nvidia.

Then to push a 4K resolution, AMD suggests an RX 6700 XT or RX 5700 or above; and an RTX 2070 or 3070 or above from Nvidia.

AMD has briefly spoken about what might slow down FSR 2.0 while in action, citing FSR 2.0's relatively high memory bandwidth demands. It noted during a GDC talk that a 4K scene can outstrip the Infinity Cache on even an RDNA 2 GPU, which doesn't bode well for older cards without anything close to an RDNA 2 GPU's cache or memory capacity.

Though AMD is rolling out an optimisation called Cache Blocking to improve cache hit rates. It does so by splitting workloads into multiples to keep data in the local cache and maintain faster execution times. AMD says L0 cache hit rates increased 37% on an RX 6800 XT when splitting