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AMD EPYC Rome CPU pack nearly 40 BILLION transistors per chip

AMD EPYC Rome: 8.34 billion transistors on a single die, 39.54 billion for the entire chip

By Anthony Garreffa from Oct 22, 2019 @ 21:50 CDT

AMD launched its new second-gen EPYC Rome CPUs a few months ago and now we're getting more details on the chip itself, and just how many transistors it is packed with -- something that is quite amazing to behold.


The new second-gen EPYC Rome CPUs have had some gorgeous up-close die shots courtesy of the folks at Hardwareluxx, where we get some ridiculously detailed images of the 9-die design (which is known as an MCM, or multi-chip module).

We now know that the AMD second-gen EPYC Rome processors pack a total of 39.54 billion transistors, which is kinda mind blowing. To compare this to NVIDIA's flagship TITAN RTX graphics card, which packs 18.6 billion -- AMD is doing some magic here with Zen 2, the 7nm node, and EPYC Rome CPUs with nearly 40 billion transistors.

The 9 dies inside of the EPYC Rome CPUs pack 8 x CCDs (Compute Core dies) and a single IOD (input/output die). Each of the CCDs have 2 x CCXs (Compute Core complexes) that each pack 4 x Zen 2 cores with their own L2 cache and shared L3 cache. Each of the 8 x CCDs are connected to the I/O through AMD's in-house Infinity Fabric technology.

If you want to read a bigger breakdown on AMD's second-gen EPYC Rome CPUs, check it out here.

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AMD EPYC 7551P 32 Core 2.00GHz Processor Retail Pack (B961034)

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