Intel’s new Broadwell Xeon server CPUs offer up to 22 cores per socket

Intel logoIntel's mainstream consumer processors are mostly of the dual- and quad-core varieties, but the server CPUs go much higher than that. Case in point: the most expensive member of the new Broadwell-based Xeon E5-2600 v4 family has a whopping 22 cores running at 2.2GHz—and all of that fits in just one processor socket.

The new 22- and 20-core CPUs offer more processing power for heavily parallelized workloads than the older Haswell-based CPUs, which topped out at a mere 18 cores per socket in the same 145W power envelope (at least, if you can afford to pay $4,115 or $3,226 for them, respectively).

The full lineup, available below, includes 27 CPUs for a variety of different use cases. There are 4, 6, 8, 10, 12, 14, 16, and 18-core versions you can buy for dual-socket servers based on your needs and your budget. There are "frequency optimized" versions with lower core counts but higher clock speeds if you have got a lot of single-threaded workloads that won't benefit from a ton of cores. And there are some low-power versions available if power consumption is more important than raw performance.

Intel’s new Broadwell Xeon server CPUs offer up to 22 cores per socket

The "v4" denotes that these chips are all based on the Broadwell architecture, which is old news on the consumer side but brand-new on the server side (this is entirely normal; server CPU releases trail the consumer versions by about a year). This means they're based on a 14nm process rather than Haswell's 22nm process, which ought to improve power consumption and performance—it's part of the reason why 22 Broadwell cores can now fit into the same package and power envelope as 18 Haswell cores could. Intel also says the range supports the Transactional Synchronization Extensions (TSX), something that was included in comparable Haswell CPUs and some earlier Broadwell chips but disabled in a microcode update because of a bug.

Broadwell Xeon

If you don't buy servers, you probably won't have an opportunity to buy and use these chips, though some high-end workstations (including the Mac Pro, though it hasn't been updated in three years) have been known to offer them as options. If you'd like to know more, Intel's product page is linked above, and there's a PDF product sheet available here.

Source: Ars Technica

Tags: CPUs, Intel, servers

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