AMD FSR 2.0 upgrade tuned to run faster on RDNA 2 powered graphics cards

AMD FSR 2.0 upgrade tuned to run faster on RDNA 2 powered graphics cards

AMD FSR 2.0 upgrade tuned to run faster on RDNA 2 powered graphics cards

AMD’s FidelityFX Super Resolution 2.0 (FSR 2.0) technology is due out later this year, but before it drops, AMD has outlined the success of its super-scaling algorithm. Good news for RDNA 2 gamers as a talk at GDC outlined the improvements and optimizations in FSR 2.0.

AMD’s latest GPU architecture brings some exciting new optimizations for running FSR 2.0.

FSR 2.0 brings many improvements – a full hour of GDC talk only covers it at the top level. But generally, you’re looking for improved image quality, speed, anti-aliasing, and lots of optimizations.

These improvements come in all shapes and sizes: tone-mapping optimizations to free up GPU resources, cache blocking to reduce the time spent viewing outside of local memory, and a redesign of the FidelityFX single-pass downsampler to help with low-overhead auto-exposure features, etc. rare. There’s also a new feature that “locks” pixel-wide ridges in place to ensure that thin features don’t flicker or disappear on screen, such as fences or distant objects.

All of this will work with upcoming GPUs from AMD, Nvidia, and even Intel. FSR and FidelityFX functions are generally open source.

Although there are also specific RDNA-2 based optimizations to improve FSR 2.0.

For example, there are specific RDNA-2 based improvements to the Lanczos approximation (an underlying algorithm of FSR). RDNA 2 shaders can also use Wave32 or Wave64 mode. While FSR shaders run in Wave32 mode most of the time, they can sometimes benefit from Wave64, which means that RDNA 2 GPUs can sometimes take advantage.

RDNA 2’s Infinity Cache also sounds handy in some cases – FSR 2.0 can become very cache-hungry at 4K frames. AMD says that even with larger caches, some overflow may occur. Hence why it uses cache blocking to help alleviate congestion by splitting workloads and running them all in local cache to improve hit rate. This should also benefit other GPUs that don’t have as much local memory.

It says that just because AMD is making improvements to RDNA 2-based GPUs, such as the RX 6800 XT, it ensures that those improvements don’t hold back older Radeon GPUs or rival GPUs.

There are various fallbacks for this. Optimizations that may hinder non-RDNA-2 cards have been flagged and should be automatically ignored when running on other GPUs if AMD configures FSR 2.0 correctly. Wave size is an example given by AMD and is only set to use Wave64 when FSR performance actually increases on a suitable GPU.

FSR 2.0 sounds like a major step forward in AMD’s upgrade technology, and I expect it to be similar to Nvidia’s leap in performance and quality between DLSS 1.0 and DLSS 2.0. With that comes a “significant” performance boost compared to FSR 1.0, but it also has its drawbacks. AMD says that unlike FSR 1.0, FSR 2.0 is only recommended for fairly recent and capable GPUs. For example, AMD does not recommend using an Nvidia GeForce GTX 1060 with FSR 2.0.

While some gamers with older technology may not benefit from FSR 2.0 as much as others, AMD is working with Microsoft to bring FSR 2.0 to the Xbox so console gamers can get a high-quality upgrade.

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Bart Thompson
Bart is's List Writer . He is from Houston, Texas, and is currently pursuing a bachelor's degree in creative writing, majoring in non-fiction writing. He likes to play The Elder Scrolls Online and learn everything about The Elder Scrolls series.