12th Generation Intel® Core™ Processors Datasheet, Volume 1 of 2
Datasheet
ID | Date | Version | Classification |
---|---|---|---|
655258 | 28/10/2021 00:00:00 | Public Content |
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System Agent Enhanced Intel SpeedStep® Technology
System Agent Enhanced Intel SpeedStep® Technology is a dynamic voltage frequency scaling of the System Agent clock based on memory utilization. Unlike processor core and package Enhanced Intel SpeedStep® Technology, System Agent Enhanced Intel SpeedStep® Technology has three valid operating points. When running light workload and SA Enhanced Intel SpeedStep® Technology is enabled, the DDR data rate may change as follows:
Before changing the DDR data rate, the processor sets DDR to self-refresh and changes the needed parameters. The DDR voltage remains stable and unchanged.
BIOS/MRC DDR training at maximum, mid and minimum frequencies sets I/O and timing parameters.