Next-generation Xeons to come in Gold and Platinum versions

Intel logoWhile Intel's desktop and laptop processors are using the latest generation Kaby Lake core, the multisocket high-end Xeon processors, used in servers and workstations, are still using the much older Broadwell core. The full range is due to be refreshed soon, with a whole range of new chips using a derivative of the Skylake core. There's still not much known about these long-awaited processors, but Intel has let slip one thing: an all-new naming scheme.

Currently, Xeons have a series nameone of E3, E5, and E7a model numbera four digit numberand a version number. The version number denotes the basic architecture, with the current version 4 meaning Broadwell. The series name indicates the core variantin general, E7 has more RAM capacity, more cores, and more reliability features than E5, and E3 is used for parts that are essentially rebranded standard desktop chips. The first digit of the model number denotes the number of sockets supported (from the single socket 1xxx parts up to the eight socket 8xxx parts), with the remaining three digits having no particular systematic meaning, but being used to distinguish between all the different core count and clock speed options.

Next-generation Xeons to come in Gold and Platinum versions

The new naming, which Intel has disclosed in a change notification document (spotted by Computerbase), appears to discard this scheme entirely. At the top are 14 processors branded "Xeon Platinum" at base speeds from 2.0 to 3.6GHz and 8000-series model numbers. These are presumed to be counterparts to the current E7 range. Exact socket and core counts remain unknown. Most of the Platinum series is expected to offer between 22 and 28 cores, with the exception of the 3.6GHz part; this will use the same design, but with far fewer cores enabled, to offer a high-cache, high-clock option.

Below the Platinum parts are 20 "Gold" brand chips, with base clock speeds from 2.0GHz to 3.6GHz. All of these are listed with a 6000-series model number except one with a 5000-series number. This suggests, if nothing else, that the lead digit of the model number no longer denotes the number of supported sockets. Core counts for the Gold parts are believed to be in the 14-22 range, though again there will be a high-clock, high-cache, low-core version.

Both Gold and Platinum chips will also include variants with a T and M suffix. The T suffix has been used before to indicate a low power version; the M suffix has traditionally implied a mobile part, but its meaning here is unknown.

The Gold and Platinum processors are both using a Skylake variant called Skylake-SP. This will include features not found in the regular desktop and mobile Skylake processors, most notably the inclusion of AVX512. AVX512 extends the existing 256-bit AVX vector instructions to be twice as wide. Intel is also developing a variant known as Skylake-X, along with a Kaby Lake variant named Kaby Lake-X. Skylake-X is anticipated to carry Xeon Bronze and Xeon Silver branding, and both Skylake-X and Kaby Lake-X are likely to have consumer-oriented versions when Intel refreshes its high-end desktop processors.

Update: In an e-mail sent after publication, an Intel spokesperson wrote "Your article contains material that has not been disclosed by Intel and we strongly request you remove this article from your site." Intel has since removed the document this story is based on from its website.

Source: Ars Technica

Tags: CPUs, Intel, servers, Xeon

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