Into the GPU Chiplet Era: An interview with AMD's Sam Naffziger

Into the GPU Chiplet Period: An interview with AMD’s Sam Naffziger

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We not too long ago had an opportunity to talk with Sam Naffziger, AMD’s Senior Vice President, Company Fellow, and Product Expertise Architect, about what’s been occurring with Radeon graphics over the previous a number of years, and what we will count on going ahead. AMD not too long ago supplied some tantalizing particulars on its upcoming RDNA 3 GPU structure, which is slated to launch earlier than the top of the yr with a chiplet-based design, and that gives the background for our interview and Q&A session. We have taken our dialogue and distilled it all the way down to the important thing factors, so we can’t current this in interview format.

Naffziger has been at AMD for 16 years and is liable for a number of product areas, with a deal with driving larger efficiency per watt and bettering the general competitiveness of AMD’s CPUs and GPUs. He is additionally one of many main individuals behind AMD’s chiplet structure, which has confirmed extremely profitable within the Ryzen and EPYC CPU strains and which is able to now be coming in some kind to AMD RDNA 3 graphics. Naffziger outlined the challenges going through the corporate, and the way he feels that modern tech, like a chiplet-based GPU structure, can lead to each improved efficiency and energy effectivity.  

Operating Into the Energy Wall

(Picture credit score: AMD)

On the coronary heart of contemporary microprocessor design, energy use and effectivity have gotten more and more problematic, and no firm is proof against the negative effects. All indicators level to elevated energy consumption from next-gen GPUs: The PCIe 5.0 energy interface and upcoming energy provides that assist it are able to supplying as much as 600W over a single 16-pin connector, portending a broader trade shift to higher-power GPUs. It is mainly recognized that Nvidia’s Ada structure will push to larger energy limits than we have seen prior to now — present rumors counsel we would see 450W TBP (typical board energy), and even perhaps as a lot as 600W TBP for the highest RTX 40-series GPUs. There hasn’t been phrase but of TBP’s for AMD’s RDNA 3, but it surely’s honest to assume it might observe the identical development. 

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