X86 cpus' Guide
Statistics
Collections : 15356  cpu
Known : 6065  cpu
For sale : 184  cpu
Pictures : 21559  photos
 Add to favorites
 Homepage
Site map Site map

Franšais  English  Dutch   

 Log in
 Register

 Search (OK)

 

Other articles > X86 Glossary > Enhanced Intel Speedstep Technology (EIST)

Enhanced Intel SpeedStep Technology (EIST) is a power and thermal management technology developed by Intel. EIST was introduced as a means of enabling high performance while meeting the power-saving needs of a mobile computer system.

Essentially, EIST throttles the clock speed of a central processing unit (CPU) during periods requiring minimal demand. It then brings the clock speed back up to its maximum potential when demanded by the load . This allows a computer to save power when there is less to process, yet still achieve high performance when the demand is high.

The earlier, non-enhanced version of SpeedStep switched frequency and voltage between low and high levels in response to a current processor load. EIST builds on this by using the following strategies:

EIST reduces the latency inherent with changing the voltage-frequency pair (P-state), thus allowing those transitions to occur more frequently. This allows for more granular, demand-based switching and can optimize the power-to-performance balance, based on the demands of the applications.


Used for : Intel Atom, Intel Celeron, Intel Core 2, Intel Core i3, Intel Core i5, Intel Core i7, Intel Pentium, Intel Pentium 4, Intel Pentium M, Intel Xeon