AMD Reveals EPYC 'Rome' CPU with 64 Zen2 Cores

AMD Reveals EPYC 'Rome' CPU with 64 Zen2 Cores

AMD Next Horizon in San Francisco, California, Tuesday, November 6, 2018. "The result is much higher performance-more CPU cores at the same power, and more cost-effective manufacture than traditional monolithic chip designs", AMD says.

Currently, experts AMD busy with the release of prototypes of the new processors EPYC using the Zen architecture 2.

AMD wasn't explicit about the clock speeds Zen 2 could facilitate but it looks likely Ryzen 3 chips will have more gigahertz to play with than their predecessors, as well as other enhancements to boost their appeal over Intel's Core processor series. 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. Papermaster summed it up thusly: "We're in the business of high performance". AMD also used the event to announce a major win in the cloud computing market, with Amazon's Web Services division launching instances based on current-generation Epyc processors which are claimed to beat their Intel-based equivalents on performance-per-dollar.

According to AMD, the dedicated I/O die offers improved latency and power consumption for the new Epyc Rome processors.

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Zen 2 will be the building block of its Ryzen and Ryzen Threadripper desktop CPUs as well as its EPYC server CPUs and is the most significant step in Zen's timeline for a number of reasons.

AMD's latest "Rome" CPU features a basic chiplet design with the 7nm execution cores connected to a 14nm IO chip via faster Infinity Fabric. There are a couple of advantages to this approach: (1) a 64-core CPU can be manufactured more cheaply as a multi-chip package due to the reduction of manufacturing defects on smaller dies and (2) less critical dies can be implemented on less expensive process technologies.

Yet they do pave the way for the next wave of Ryzen processors. The chips will be manufactured by TSMC on its leading 7nm node, which the company says will give it a significant advantage over Intel, which is now struggling with its own 10nm process. New processors based on Zen 2 will use a 7nm manufacturing process and start hitting the market in 2019.

AMD was also focused on providing a stable roadmap revealing that Zen 2 EPYC Rome is sampling now, with availability expected in 2019, while Zen 3 Milan is on track and should come sometime in 2020.

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