A patent filing by AMD from 2017 has just been published online, and it suggests that the company is working on implementing variable rate shading (VRS) to its upcoming Navi graphics cards.
Variable rate shading is one of the headline features of Nvidia’s latest Turing series of graphics cards, and the patent apparently reveals that AMD is not too far behind its competitor with adding the feature.
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If the patent, which was shared on Twitter by user 0x22h, is accurate, it means VRS is likely to come to future AMD graphics cards, such as its next-generation 7nm GPU Navi architecture.
It’s also rumored that AMD will be making the CPUs in the next-generation Xbox and PS5, so we could see VRS used for those consoles as well.
What is variable rate shading?
The fact that AMD is also potentially working on adding variable rate sharing to its upcoming GPUs is an exciting prospect. The demands placed on graphics cards are rising thanks to increases in resolutions, with 4K screens becoming more popular, and even 8K monitors beginning to come to market.
Because 4K is four times the resolution of 1080p, even modern graphics cards are struggling to cope with that extra workload.
With VRS, developers can use the technology to make the most out of the hardware, with the GPU able to identify areas in a frame that need to be rendered in full detail (usually directly in the center of the screen, where you’ll be mainly looking), while reducing the detail of other parts of the frame where you’re less likely to notice.
The idea is that variable rate shading can cleverly choose where to focus the rendering power of the GPU without compromising image quality, and can lead to substantial performance boosts.
With Nvidia – and hopefully AMD in the future – both supporting VRS, it should make the tech more attractive to games developers, and we could see better gaming performance at ultra-high resolutions.
Via Tom’s Hardware
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