Original 45nm Intel® Core™ Microarchitecture

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Power Management Enhancements in the 45nm Intel® Core™ Microarchitecture

ABSTRACTS

Jose Allarey, Mobility Group, Intel Corporation

Varghese George, Mobility Group, Intel Corporation

Sanjeev Jahagirdar, Mobility Group, Intel Corporation

Index words: power management, CPU Sleep, C states, idle power, frequency

Citations for this paper: Jose Allarey, Varghese George, Sanjeev Jahagirdar "Original 45nm Intel® Core™2 Processor Performance" Intel Technology Journal. http://www.intel.com/technology/itj/2008/
v12i3/2-paper/1-abstract.htm (October 2008).

ABSTRACT

Intel® processors based on the original 45nm Intel Core™ microarchitecture, originally referred to by the codename Penryn, improve the energy efficiency and performance per watt of the Intel Core microarchitecture. This paper discusses the new technologies introduced in the Penryn family of processors that enabled lower idle power and higher performance levels.

The Penryn family of processors builds on the power-management capabilities of the Intel processors based on 65nm Intel Core microarchitecture, originally referred to by the codename Merom, and takes them to the next level of idle power reduction and multi-core Enhanced Dynamic Acceleration Technology performance. The Penryn family of processors took very aggressive goals for idle power reduction in mobile, desktop, and server platforms. All features have been demonstrated to be fully functional on silicon and meet or beat the expectations of power reduction and increased performance. In fact, most of these features have already been enabled on the products that are currently shipping. Furthermore, the Penryn family of processors introduced new processor sleep states and Dynamic Acceleration mode on Intel Core 2 Quad processors for the first time in Intel to enable the acceptance of quad core as a mainstream product.

  Section 1 of 10  

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