Average CPU power

In computing the average CPU power (ACP) is the power consumption of central processing units, especially server processors, under "average" daily usage as defined by Advanced Micro Devices (AMD) for use in its line of processors based on the K10 microarchitecture (Opteron 8300 and 2300 series processors). Intel's thermal design power (TDP), used for Pentium and Core 2 processors, measures the energy consumption under high workload; it is numerically somewhat higher than the "average" ACP rating of the same processor.

ACP compared to TDP[1]
ACP TDP
40 W60 W
55 W79 W
75 W115 W
105 W137 W

According to AMD the ACP rating includes the power consumption when running several benchmarks, including TPC-C, SPECcpu2006, SPECjbb2005 and STREAM Benchmark[2] (memory bandwidth),[3] [4][5] which AMD said is an appropriate method of power consumption measurement for data centers and server-intensive workload environments. AMD said that the ACP and TDP values of the processors will both be stated and do not replace one another. Barcelona and later server processors have the two power figures.

In June 2020 Zen-based CPUs do not seem to have an ACP figure, listing only a TDP figure.

See also

References
  1. John Fruehe. "Istanbul EE launches today" Archived 2011-07-28 at the Wayback Machine
  2. "Memory bandwidth: Stream benchmark performance results". virginia.edu.
  3. de Gelas, Johan (10 September 2007). "AMD's Quad-Core Barcelona: Defending New Territory". AnandTech.
  4. Huynh, Anh T.; Kubicki, Kristopher (7 September 2007). "AMD Unveils "Barcelona" Architecture". DailyTech. Archived from the original on 27 October 2010.
  5. DailyTech - Introducing Average CPU Power, September 2007
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