Average CPU power
The average CPU power (ACP), is a scheme to characterize power consumption of new central processing units under "average" daily usage, especially server processors, the rating scheme is defined by Advanced Micro Devices (AMD) for use in its line of processors based on the K10 microarchitecture (Opteron 8300 and 2300 series processors). This rating is similar to Intel's thermal design power (TDP) used with Pentium and Core 2 processors, measuring the energy consumption of high workloads, which in numbers are slightly lower than the TDP value of the same processor.
AMD claims the ACP rating includes the power consumption when running several benchmarks, like TPC-C, SPECcpu2006, SPECjbb2005 and STREAM Benchmark (memory bandwidth) [1][2][3] which AMD said is a better method as a power consumption measurement for data centers and server intensive workload environments. AMD has said that the ACP and TDP values of the processors will co-exist, and do not replace one another. All server products will see two power figures starting from the codenamed Barcelona server processor onwards.
ACP compared to TDP
- 40 Watt ACP = 60 Watt TDP[4]
- 55 Watt ACP = 79 Watt TDP
- 75 Watt ACP = 115 Watt TDP
- 105 Watt ACP = 137 Watt TDP
See also
- CPU power dissipation
- IT energy management
- List of AMD Opteron microprocessors
- Performance per watt
- SPECpower
- TDP power cap
References
- ^ AnandTech report, retrieved September 10, 2007
- ^ DailyTech report, retrieved September 10, 2007
- ^ DailyTech image detailing ACP, retrieved September 10, 2007
- ^ John Fruehe. "Istanbul EE launches today"
- Power Efficiency, AMD
- Introducing Average CPU Power, DailyTech