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RDNA 3 is a GPU microarchitecture designed by AMD, released with the Radeon RX 7000 series on December 13, 2022. Alongside powering the RX 7000 series, RDNA 3 is also featured in the SoCs designed by AMD for the Asus ROG Ally , Lenovo Legion Go , and the PlayStation 5 Pro consoles.
The Radeon RX 7000 series is a series of graphics processing units developed by AMD, based on their RDNA 3 architecture. It was announced on November 3, 2022 [1] and is the successor to the Radeon RX 6000 series. The first two graphics cards of the family (RX 7900 XT and RX 7900 XTX) were released on Dec 13, 2022.
AMD were light on concrete details surrounding the RDNA 4 architecture or the Radeon RX 9000 series during their CES keynote. [5] The Radeon RX 9000 series targets midrange performance and value rather than competing with Nvidia at the high-end like the Radeon RX 7000 series did. [ 6 ]
RDNA 3 (also RDNA3) is the successor to the RDNA 2 microarchitecture and was projected for a launch in Q4 2022 per AMD's gaming GPU roadmap. [ 46 ] [ 47 ] [ 48 ] At an August 29 reveal event for Ryzen 7000 series CPUs, AMD CEO Lisa Su teased RDNA 3 and revealed that it would utilize chiplets built on TSMC 's N5 node. [ 49 ]
As a result, Lovelace GPUs would be limited by DisplayPort 1.4a's supported refresh rates despite the GPU's performance being able to reach higher frame rates. Intel's Arc GPUs that also released in October 2022 included DisplayPort 2.0. AMD's competing RDNA 3 architecture released just two months after Lovelace included DisplayPort 2.1. [23]
VCN 3.0 is implemented with Navi 2 products. [5] VCN 3.0 implements H.264 B-frames, which was present in Video Coding Engine 2.0 but taken out with VCE 3.0. [6] VCN 4.0 adds AV1 encode. [7] H.264 quality is higher with VCN 4.0 (as part of RDNA 3) compared to previous generations, but still lags behind Intel and Nvidia hardware codecs. [8]
The Navi GPUs are the first AMD GPUs to use the new RDNA architecture, [6] whose compute units have been redesigned to improve efficiency and instructions per clock (IPC). It features a multi-level cache hierarchy, which offers higher performance, lower latency, and less power consumption compared to the previous series.
ROCm is free, libre and open-source software (except the GPU firmware blobs [4]), and it is distributed under various licenses. ROCm initially stood for Radeon Open Compute platfor m ; however, due to Open Compute being a registered trademark, ROCm is no longer an acronym — it is simply AMD's open-source stack designed for GPU compute.