AMD EPYC 'Rome': Zen 2 on 7nm, 64C/128T of CPU power

AMD EPYC 'Rome': Zen 2 on 7nm, 64C/128T of CPU power

AMD EPYC 'Rome': Zen 2 on 7nm, 64C/128T of CPU power

AMD EPYC "Rome" processors will feature up to 64 Zen 2 cores by combining up to eight 7-nanometer chiplets with a 14-nanometer I/O die. This is a insane achievement for AMD, and really sets a new standard for compute performance.

Today at Next Horizon, AMD (NASDAQ: AMD) and Amazon Web Services, announced the immediate availability of the first AMD EPYC processor-based instances on Amazon Elastic Compute Cloud (EC2). AMD said it reworked the Zen 2 core to offer double the throughput, increased floating point performance, a doubled core density and half the energy use per operation of Zen.

While Rome's 64-core/128-thread count is double that of EPYC's first-generation, Naples, CEO Lisa Su promised that users can also expect double the performance thanks to the switch to TSMC's 7nm manufacturing process.

AMD also talked about Zen 2 CPU core and modular design methodology with the so-called chiplet design but we will cover that one in a separate article. Considering what AMD is now claiming, Rome should be able to match or exceed Intel's highest performing offering in 2019. The next jump with Zen 2 is much larger at 7nm. This offers not only higher IPCs and a significant increase in overall performance, but also improved security features in the recently announced EPYC CPU "Rome". According to Papermaster, this was something of a gamble, given the challenges of implementing such a complex design on a leading-edge semiconductor manufacturing technology.

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While AMD has also hinted at the upcoming Zen 2-based EPYC family of CPUs (codenamed Rome), it was keen to make yet another related announcement. But because of continued delays in Intel's 10nm effort, AMD lucked out; it will be shipping some of the fastest and most power-efficient silicon in the datacenter next year. The chiplets will contain nothing but CPU cores, and will be linked via the company's Infinity Fabric interconnect to an on-package 14nm I/O die.

Yet they do pave the way for the next wave of Ryzen processors. These chips are expected to be launched sometime in 2019 but an exact launch timeline has not been revealed yet. Based on AMD's 25 percent improvement in performance with Vega 7nm, Zen 2 could compete directly with Intel on clockspeed, and other enhancements to the core architecture are likely as well.

As ArsTechnica explains it, Zen 2 has a combination of 14nm and 7nm components under its hood.

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