AMD RDNA 2 “Navi 2X” gets 50 percent increased performance per watt

During AMD’s finance-focused event Financial Analyst Day, the company logically shares information regarding the company’s financial development. In addition to financial issues, the company also reveals technical details about upcoming hardware news, including the graphics architecture RDNA 2.

AMD wants to highlight that RDNA 2 is about more than just an upgraded version of the previous architecture, and has therefore assigned the upcoming upgrade the code name “Navi 2X”. AMD does not share details about what the new features are, apart from the previously known hardware support for ray tracing.

In product presentations, the company presents technology demonstrations run with Microsoft ray tracinginterface DXR 1.1 running on RDNA 2 circuits. As the company confirms that RDNA 2 is the basis for the next generation of PC hardware as well as game consoles, the latter means that the architecture also supports functions such as Variable Rate Shading (VRS).

The biggest indicator that RDNA 2 is more than just an enhanced version of its predecessor is the progress in performance per watt. Here, the efficiency of architecture is increased by 50 percent compared to RDNA. The increased efficiency is based on several individual improvements, where optimizations in the microarchitecture have led to increased efficiency per clock cycle (IPC).

Other optimizations include architectural ones, where the complexity of the circuit design is reduced and the energy efficiency is increased. Improved energy efficiency is particularly significant for AMD as the company cannot rely on a manufacturing technological lead with RDNA 2 in the same way as with RDNA and TSMC’s 7-nanometer technology.

The biggest competitor, Nvidia, will also introduce a new 7-nanometer graphics architecture by 2020, thus regaining the manufacturing technological lead AMD enjoyed with the 2019 graphics card in the Radeon RX 5000 series. In order to stay competitive with Nvidia, RDNA 2 therefore needs to offer more than just manufacturing technical optimizations, which the data on 50 percent increased performance per watt indicates that the company delivers.

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When it comes to manufacturing technology in particular, AMD seems to back up previous statements that the company uses TSMC’s 7-nanometer technology with EUV lithography, called N7 +. Instead, AMD mentions that an “improved” variant of TSMC’s existing 7 nanometers is used. No further details are given, but it could potentially be that AMD instead uses TSMC’s performance-optimized node N7P.

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AMD also mentions future plans for the next step in architecture. RDNA 3 or “Navi 3X” is manufactured using an unspecified “advanced manufacturing technology” and will enter the market in 2022. AMD does not mention when RDNA 2 will make its debut in PC components, but the architectural premiere is confirmed for the Playstation 5 and Xbox Series game consoles X for Christmas shopping in 2020.

Read more about RDNA 2:


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