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Intel® Xeon®PhiTM Product Family

Intel inside® powerful data center outside.

what’s inside the Intel®Xeon PhiTM


Intel® Xeon PhiTM coprocessors are PCI Express* form factor add-in cards that work synergistically with Intel® Xeon® processors to enable dramatic performance gains for highly parallel code—up to 1.2 double-precision teraFLOPS (floating point operations per second) per coprocessor.
Manufactured using Intel’s industry-leading 22nm technology with 3-D Tri-Gate transistors, each coprocessor features more cores, more threads, and wider vector execution units than an Intel Xeon processor. The high degree of parallelism compensates for the lower speed of each core to deliver higher aggregate performance for highly parallel workloads.

What applications can benefit from the Intel Xeon Phi coprocessor?

While a majority of applications (80 to 90 percent) will continue to achieve maximum performance on Intel Xeon processors, certain highly parallel applications will benefit dramatically by using Intel Xeon Phi coprocessors.

To take full advantage of Intel Xeon Phi coprocessors, an application must scale well to over 100 software threads and either make extensive use of vectors or efficiently use more local memory bandwidth than is available on an Intel Xeon processor. Examples of segments with highly parallel applications include: animation, energy, finance, life sciences, manufacturing, medical, public sector, weather, and more.

when do i use intel xeon processors and intel xeon phi coprocessors?

Think "reuse" rather than "recode"

Since languages, tools, and applications are compatible for both Intel Xeon processor and Intel Xeon Phi coprocessors, now you can think “reuse” rather than “recode”.

Single programming model for all your code

The Intel Xeon Phi coprocessor gives developers a hardware design point optimized for extreme parallelism, without requiring them to re-architect or rewrite their code. No need to rethink the entire problem or learn a new programming model; simply recompile and optimize existing code using familiar tools, libraries, and runtimes.

Performance multiplier

By maintaining a single source code between Intel Xeon processors and Intel Xeon Phi coprocessors, developers optimize once for parallelism but maximize performance on both processor and coprocessor.

Execution flexibility

Designed from the ground up for high-performance computing. Unlike a GPU, a coprocessor can host an operating system, be fully IP addressable, and support standards such as Message Passing Interface (MPI). Additionally, it can operate in multiple execution modes:

  • "Symmetric" mode: Workload tasks are shared between the host processor and coprocessor
  • "Native" mode: Workload resides entirely on the coprocessor, and essentially acts as a separate compute nodes
  • "Offload" mode: Workload resides on the host processor, and parts of the workload are sent out to the coprocessor as needed. NOTE: GPUs can ONLY be run in mode and often sits idle.

product information and specifications

Improve your ability to safeguard your data and infrastructure with foundational, hardware-assisted security capabilities.

7100 series

Premium offering for the most demanding users, supporting the most features, including Intel® Turbo Boost Technology 1.0, and the highest performance and memory capacity of the Intel Xeon Phi product family.

5100 series

Optimized for memory bandwidth bound workloads (STREAM*, Energy), memory capacity workloads (DCC, Energy), or both (Reverse Time Migration).

3100 series

Outstanding parallel performance and an excellent choice for computer-bound workloads, such as Monte Carlo, Black-Scholes, HPL, LifeSc, and many others.

Configure your Intel® Xeon PhiTM Solution today!

Intel® Xeon Phi™ Coprocessors Product Brief >

Intel® Xeon Phi™ Applications and Solutions Catalog >