AMD unveiled its Radeon RX 6000-series graphics cards yesterday, and judging by the company’s statements, we can say that Turing and Ampere have finally gotten worthy competitors. The company also unveiled a promotional video highlighting the RDNA 2 architecture that powers the latest graphics cards and both next-generation gaming consoles.
In this video, AMD refers to RDNA 2 as a breakthrough gaming architecture for PCs and consoles that has enabled a leap in performance and efficiency. First of all, the company mentions the superiority of the 7nm RDNA 2 in terms of performance per watt by 54% over the 7nm RDNA. The latter, by the way, at one time also brought a similar 50% increase in relation to GCN.
The manufacturer also said that the computing units (CU) have been redesigned, allowing the operating frequencies to be increased by 30%. Each CU also now has its own hardware ray-tracing accelerator – AMD simply calls them Ray Accelerator (RA). RA allows you to speed up the rendering of ray intersections by an order of magnitude and provide real-time hybrid rendering effects based on DirectX Raytracing.
Finally, AMD also mentioned the new high-speed 128 MB Infinity Cache buffer, which significantly expands the effective memory bandwidth of new video cards and reduces power consumption. AMD estimates that the Infinity Cache bundle with a 256-bit bus and 16 GB GDDR6 memory provides an effective bandwidth of 1664 GB / s. For comparison: without Infinity Cache, the same bundle has a bandwidth of only 512 GB / s, that is, 3.25 times less.
By the way, to date, the most impressive demonstration of the capabilities of the new generation of games was performed on RDNA 2 (though in the PlayStation 5 version). We are talking about the Lumen in the Land of Nanite tech-demo, shown in March, based on Unreal Engine 5 with infinite geometry technology, fully dynamic global illumination, and so on:
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