Intel'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.
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