Preliminary Information

25175H —March 2003

AMD Athlon™ XP Processor Model 8 Data Sheet

4 Power Management

This chapter describes the power management control system of the AMD Athlon™ XP processor model 8. The power management features of the processor are compliant with the ACPI 1.0b and ACPI 2.0 specifications.

4.1Power Management States

The AMD Athlon XP processor model 8 supports low-power Halt and Stop Grant states. These states are used by advanced configuration and power interface (ACPI) enabled operating systems for processor power management.

Figure 3 shows the power management states of the processor. The figure includes the ACPI “Cx” naming convention for these states.

C1

 

 

 

 

 

 

Execute HLT

 

 

 

 

 

 

C0

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

Halt

 

 

SMI#, INTR, NMI, INIT#, RESET#

 

 

 

Working4

IncomingProbe

 

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orthrottling)

(ReadPLVL2register

 

STPCLK#asserted

 

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Incoming Probe

 

 

 

 

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Probe

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

Probe Serviced

 

 

Stop Grant

State1

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

Cache Snoopable

Note:

The AMD AthlonTM System Bus is connected during the following states:

1)The Probe state

2)During transitions between the Halt state and the C2 Stop Grant state

3)During transitions between the C2 Stop Grant state and the Halt state

4)C0 Working state

 

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Cache Not Snoopable

 

 

 

Sleep

 

 

 

 

 

Legend

 

 

Hardware transitions

 

 

Software transitions

 

 

 

 

 

 

Figure 3. AMD Athlon™ XP Processor Model 8 Power Management States

Chapter 4

Power Management

9

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Image 21
AMD 8 manual Power Management States

8 specifications

AMD's Ryzen 8000 series, commonly referred to as AMD 8, represents a significant leap in performance and efficiency, leveraging advanced technologies that cater to gamers, content creators, and enterprise users alike. With a continued focus on the Zen architecture, the Ryzen 8000 processors enhance performance per watt, delivering increased efficiency without compromising on power.

One of the standout features of AMD 8 is its adoption of the 5nm process technology. This innovation allows for a higher density of transistors, resulting in improved performance metrics and reduced power consumption. The smaller node size not only enhances clock speeds but also ensures that the chips generate less heat, making thermal management easier for system builders.

AMD has introduced a new architecture with the Ryzen 8000 series known as Zen 5. This architecture brings improved instructions per cycle (IPC) over its predecessors, leading to faster performance in both single-threaded and multi-threaded workloads. Gamers will benefit from higher frame rates, while professionals in fields such as video editing and 3D rendering can expect noticeable improvements in rendering times.

Another key technology in the AMD 8 lineup is the integration of AMD's next-generation RDNA graphics architecture. This allows for enhanced graphics performance in systems without dedicated GPU hardware. The combination of advanced graphics and CPU capabilities provides a more versatile platform for casual gamers and users with less demanding graphical needs.

Support for PCIe 5.0 is a game changer for the AMD 8000 series, offering double the bandwidth of its predecessor, PCIe 4.0. This feature allows for faster data transfer rates with compatible SSDs and graphics cards, ensuring that users can take full advantage of the latest storage technologies.

Additionally, AMD's Infinity Cache has made its way into the Ryzen 8000 series, further enhancing memory bandwidth. This technology reduces latency and increases efficiency by caching frequently accessed data closer to the processor.

In terms of connectivity, the Ryzen 8000 models come equipped with Wi-Fi 7 and Bluetooth 5.2, providing ultra-fast wireless connections that are essential for modern gaming and streaming experiences.

In summary, AMD's Ryzen 8000 series, or AMD 8, is designed for maximum performance and efficiency. With its advanced 5nm technology, enhanced Zen 5 architecture, integrated RDNA graphics, PCIe 5.0 support, Infinity Cache, and state-of-the-art connectivity features, it sets a new standard for processors in its class, making it a top choice for both gamers and professionals.