AMD expects GPUs to need 600W of power in 2025

AMD says 'power consumption is exploding since demand is outstripping gains' and expects GPU to have hungry 600W TDPs in 2025.

Published Jul 10, 2022 8:02 PM CDT   |   Updated Mon, Aug 1 2022 11:59 PM CDT
2 minutes & 29 seconds read time

We all know that the next-gen GPUs from both AMD and NVIDIA will be consuming much more power, especially for NVIDIA's highest-end Ada Lovelace GPUs, with AMD expecting to see GPUs using up to 600W of power by 2025.

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AMD set an aggressive goal of 25x20 (hitting 25x better energy efficiency for its CPUs and GPUs by 2020) and has smashed it, so much so that the company has set a brand new 30x25 goal (hitting 30x better energy efficiency) by 2025 in the machine learning, and high-performance computing (HPC) markets in data centers.

The news is coming from VentureBeat, which spoke with AMD senior vice president, corporate fellow and product technology architect, Sam Naffziger. Naffziger said: "We've driven the frequency up, and that is something unique to AMD. Our GPU frequencies are 2.5 GHz plus now, which is hitting levels not before achieved. It's not that the process technology is that much faster, but we've systematically gone through the design, re-architected the critical paths at a low level, the things that get in the way of high frequency, and done that in a power-efficient way".

Naffziger continued: "Frequency tends to have a reputation of resulting in high power. But in reality, if it's done right, and we just re-architect the paths to reduce the levels of logic required, without adding a bunch of huge gates and extra pipe stages and such, we can get the work done faster. If you know what drives power consumption in silicon processors, it's voltage. That's a quadratic effect on power. To hit 2.5 GHz, NVIDIA could do that, and in fact they do it with overclocked parts, but that drives the voltage up to very high levels, 1.2 or 1.3 volts. That's a squared impact on power. Whereas we achieve those high frequencies at modest voltages and do so much more efficiently".

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"We analyze our design pre-silicon, as we're in the process of developing it, to assess that efficiency. We absolutely analyzed heavily the NVIDIA designs and what they were doing, and of course targeted doing much better".

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Anthony joined the TweakTown team in 2010 and has since reviewed 100s of graphics cards. Anthony is a long time PC enthusiast with a passion of hate for games built around consoles. FPS gaming since the pre-Quake days, where you were insulted if you used a mouse to aim, he has been addicted to gaming and hardware ever since. Working in IT retail for 10 years gave him great experience with custom-built PCs. His addiction to GPU tech is unwavering.

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