In general, Intel® Core™ family microarchitecture client and Intel® Xeon® E3 processors that implement RDRAND and/or RDSEED and are affected by either Microarchitectural Fill Buffer Data Sampling (MFBDS) or Intel® Transactional Synchronization Extensions (Intel® TSX) Asynchronous Abort may also be affected by Special Register Buffer Data Sampling (SRBDS). Refer to the technical documentation for further details.
More precisely, a processor is affected by SRBDS if its Family_Model and stepping is marked as affected in the following table, with the exception of the specifically marked processors exporting MDS_NO while Intel TSX is available yet not enabled. The latter class of processors are only affected when Intel TSX is enabled by software using TSX_CTRL_MSR, otherwise they are not affected.
Processors marked with † may support Intel® Software Guard Extensions (Intel® SGX).
|Family_Model||Step||Processor Families /
Processor Number Series
|06_3AH||All||3rd Generation Intel® Core™ i7 and i5 processor families based on Ivy Bridge microarchitecture||Yes|
|06_3FH||All||Intel Xeon processor E5-4600/2600/1600 v3 product families, and Intel Xeon processor E7 v3 product families Intel Core i7-59xx Processor Extreme Edition based on Haswell-E microarchitecture||No|
|All||4th Generation Intel Core processor and Intel Xeon processor E3-1200 v3 product family based on Haswell microarchitecture||Yes|
|06_56H||All||Intel Xeon processor D-1500 product family based on Broadwell microarchitecture||No|
|06_4FH||All||Intel Xeon processor E5 v4 Family based on Broadwell microarchitecture, Intel Xeon processor E7 v4 Family, Intel Core i7-69xx Processor Extreme Edition based on Broadwell-E microarchitecture||No|
|06_47H||All||5th Generation Intel Core processors, Intel Xeon processor E3-1200 v4 product family based on Broadwell microarchitecture||Yes|
|06_3DH||All||Intel Core M-5xxx Processor, 5th Generation Intel Core processors based on Broadwell microarchitecture||Yes|
|06_55H||<=4||First Generation Intel Xeon Scalable Processor Family based on Skylake microarchitecture||No|
|06_55H||5-7||Second Generation Intel Xeon Scalable Processor Family based on Cascade Lake microarchitecture||No|
|All||6th Generation Intel Core processors and Intel Xeon processor E3-1500m v5 product family and E3- 1200 v5 product family based on Skylake microarchitecture†||Yes|
|06_8EH||<=A||7th/8th Generation Intel Core processors, Intel Xeon processor E3 v6 product family and Intel Xeon-E Processor product family based on Kaby Lake/Coffee Lake microarchitectures†||Yes|
|06_9EH||<=B||7th/8th Generation Intel Core processors based on Kaby Lake/Coffee Lake microarchitecture†||Yes|
|06_9EH||0xC||8th/9th Generation Intel Core processors, Intel® Pentium® processors, and Intel Xeon E processor family based on Coffee Lake microarchitecture†||Yes|
|06_8EH||0xB||8th Generation Intel Core i7 Processors, Intel Pentium Gold Processor Series, and Intel® Celeron® Processor 4000 Series based on Whiskey Lake (ULT, refresh and desktop) microarchitecture†||Yes|
|06_8EH||0xC||8th Generation Intel Core i7 Processors, Intel Pentium Gold Processor Series, and Intel® Celeron® Processor 4000 Series based on Whiskey Lake (ULT, refresh and desktop) microarchitecture†
8th/10th Generation Intel Core processors based on Amber Lake Y†
|06_9EH||0xD||Intel Xeon E-2200 Processor product family based on Coffee Lake-R microarchitecture†||Yes|
|All||10th Generation Intel Core Processors product family based on Comet Lake||No|
|All||10th Generation Intel Core processors based on Ice Lake microarchitecture†||No|
|All||Intel Atom® (Silvermont, Airmont)||No|
|All||Intel Atom (Goldmont, GoldmontPlus†)||No|
|06_86H||All||Intel Atom P5900 (Tremont)||No|
|All||Intel® Xeon Phi™ x200 and 72x5 product families based on Knights Landing and Knights Mill microarchitectures||No|
Product and Performance Information
Performance varies by use, configuration and other factors. Learn more at www.Intel.com/PerformanceIndex.