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Does the Intel® Xeon® Processor Family Support the BMI2 Instruction Set?

Content Type: Product Information & Documentation   |   Article ID: 000102715   |   Last Reviewed: 04/02/2026

Environment

Intel® Xeon® processors Intel® 64 and IA‑32 architecture

Summary

Yes — Intel® Xeon® processors support the BMI2 (Bit Manipulation Instruction Set 2) instruction set, provided the processor is based on the Haswell microarchitecture or newer.

BMI2 support is determined by the processor microarchitecture, not by the Xeon brand name alone.

What is BMI2?

BMI2 (Bit Manipulation Instruction Set 2) is an Intel® instruction set extension that provides advanced bit-level operations, commonly used in performance‑sensitive workloads such as compression, cryptography, databases, and low‑level systems software.

When was BMI2 introduced?

  • BMI2 was introduced with the Intel® Haswell microarchitecture
  • Any Intel® Xeon® processor derived from Haswell or later supports BMI2

Intel® Xeon® processors that support BMI2

The following Xeon families include BMI2 support:

  • Intel® Xeon® E3 v3 and newer
  • Intel® Xeon® E5 v3 / v4 (Haswell / Broadwell)
  • Intel® Xeon® Scalable Processors
  • Intel® Xeon® 6 Processors

Intel® Xeon® processors that do NOT support BMI2

  • Xeon processors based on pre‑Haswell microarchitectures, including:
    • Sandy Bridge
    • Ivy Bridge

How to Verify BMI2 Support

BMI2 support can be confirmed programmatically using the CPUID instruction, which is supported by modern operating systems.

CPUID feature flag definition:

CPUID leaf:  EAX = 07h, ECX = 0Register:    EBXBit:         8Result:      1 = BMI2 supported

This method provides a reliable, architecture‑level confirmation of BMI2 availability.

Cause of Confusion

Customers may assume all Intel® Xeon® processors support the same instruction sets. However:

  • The Xeon brand spans multiple generations
  • Instruction set extensions are introduced by microarchitecture
  • Older Xeon processors predate BMI2

Recommendation

  • Do not rely on the Xeon name alone to determine BMI2 support
  • Verify the processor microarchitecture or use CPUID feature detection
  • Use runtime checks when deploying software across multiple systems

Related Information

 

  • Intel® 64 and IA‑32 Architectures Software Developer’s Manual
    • CPUID instruction reference
    • Instruction set feature flag definitions
  • Intel® Instruction Set Extensions Programming Reference
    • BMI1 and BMI2 instruction descriptions
    • Introduction of BMI2 in Haswell microarchitecture
  • Intel® Processor Specification Documentation
    • Instruction set extensions listed per processor model

 

Related Products

This article applies to 28 products.
5th Gen Intel® Xeon® Scalable Processors Intel® Xeon® 678X Processor (192M Cache, 2.40 GHz) Intel® Xeon® 658X Processor (144M Cache, 3.00 GHz) Intel® Xeon® 654 Processor (72M Cache, 3.10 GHz) Intel® Xeon® Scalable Processors Intel® Xeon® 6 processors 3rd Gen Intel® Xeon® Scalable Processors Intel® Xeon® W Processor Intel® Xeon® E Processor Intel® Xeon® 676X Processor (144M Cache, 2.80 GHz) 2nd Gen Intel® Xeon® Scalable Processors Intel® Xeon® 696X Processor (336M Cache, 2.40 GHz) 4th Gen Intel® Xeon® Scalable Processors

Discontinued Products

Intel® Xeon® Processor E7 v4 Family Intel® Xeon® Processor E5 v3 Family Intel® Xeon® Processor E3 v4 Family Intel® Xeon® Processor E7 Family Intel® Xeon® Processor E5 v4 Family Intel® Xeon® Processor E3 v6 Family Intel® Xeon® Processor E3 v5 Family Intel® Xeon® Processor E3 Family Legacy Intel® Xeon® Processors Intel® Xeon® Processor E5 v2 Family Intel® Xeon® Processor E7 v3 Family Intel® Xeon® Processor E7 v2 Family Intel® Xeon® Processor E5 Family Intel® Xeon® Processor E3 v2 Family Intel® Xeon® Processor E3 v3 Family

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