Processor TDP power consumption will exceed 400W? AMD: It’s not a problem, it can be water-cooled

Mark PaperMaster, AMD’s Chief Technology Officer, recently spoke to Anandtch’s website about a number of technical issues related to Zen architecture processors, following a brief introduction to iPC performance issues related to the Zen4/Zen5 architecture, and also about the TDP power consumption of AMD processors.

In the current processor, AMD’s 7nm “Roman” processor is up to 64-core 128 threads and TDP consumes up to 225W, but in September AMD introduced the EPYC 7H12 processor, with a base frequency increased from 2.25Hz to 2.6GHz for epYC 7742 processors, L3 cache, Specifications such as 128 PCIe 4.0 channels remained unchanged, but TDP power consumption increased to 280W and acceleration frequency decreased from 3.4GHz to 3.3GHz.

Processor TDP power consumption will exceed 400W? AMD: It's not a problem, it can be water-cooled

But the 280W TDP is not the highest compared to Intel’s processor, as Intel introduced the Sestrong 9200 series on the second-generation UEG Extensible processor, which came to the 56 Core 112 thread in a dual-chip package. The main frequency has been increased to 2.6-3.8GHz, the third-level cache has doubled to 77MB, the UPI bus has been increased to four, memory support has reached the twelve-channel DDR4-2933, the maximum capacity of 1.5TB (standard version), and the TDP thermal design power consumption is up to 400W.

In contrast, AMD is more conservative on TDP power consumption metrics than Intel, so will AMD break that limit in the future? (Note: TDP power consumption is not equal to actual power consumption, the higher the TDP from a design point of view, which means that the stronger the CPU performance, is a good thing)

Mark PaperMaster says their collaboration with OEM customers is not just about maximizing CPU power, but also about CPU-GPU collaboration, as evidenced by AMD’s partnership with Cray/HPE Frontier Overcomputing, which shows that AMD can optimize across hardware, cross-system and software stacks with OEM partners to truly drive HPC development.

Mark PaperMaster mentions that the EPYC 7H12 processor is part of their ongoing optimization of the Roman processor layout, which ATOS has started to use and has earned a top spot on the TOP500.

Mark PaperMaster points out that as customers use water-cooled cooling systems, AMD and OEM partners have more room to move forward in improving CPU performance and still have potential to tap.

Simply put, AMD believes that the current 225W or 280W TDP is not the end, as long as the cooling system can keep up with (HPC water cooling / liquid cooling), TDP can also increase, then the core number, frequency can go up.

The same applies to desktop PCs, where the current TDP power consumption of the Ryzen 9 3950X is 105W, while Intel has achieved 125W TDP on the latest 10th-generation Core 10 core flagship, and it looks like AMD has room to continue to upgrade the Ryzen processor’s TDP. I don’t know if I’ll see it in next year’s Ryzen 4000 series.

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