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 |
Affected |
|---|---|---|---|
| 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 |
| 06_3CH, 06_45H, 06_46H |
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 |
| 06_4EH, 06_5EH |
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† |
Yes |
| 06_9EH | 0xD | Intel Xeon E-2200 Processor product family based on Coffee Lake-R microarchitecture† | Yes |
| 06_A5H, 06_A6H |
All | 10th Generation Intel Core Processors product family based on Comet Lake | No |
| 06_7DH, 06_7EH |
All | 10th Generation Intel Core processors based on Ice Lake microarchitecture† | No |
| 06_4CH, 06_5CH 06_37H, 06_4AH, 06_4DH, 06_5AH, 06_5DH, 06_6EH, 06_65H, 06_75H |
All | Intel Atom® (Silvermont, Airmont) | No |
| 06_5CH, 06_5FH, 06_7AH |
All | Intel Atom (Goldmont, GoldmontPlus†) | No |
| 06_86H | All | Intel Atom P5900 (Tremont) | No |
| 06_57H, 06_85H |
All | Intel® Xeon Phi™ x200 and 72x5 product families based on Knights Landing and Knights Mill microarchitectures | No |