IBM Power7 energy efficiency performance

Posted in benchmarks, energy-efficiency, ibm, low-power, pc, power7 on August 18th, 2010 by FrankM – Comments Off

IBM shares results of its Power7 benchmarks which incorporate the energy efficiency perspective.  …

…   “IBM has achieved the industry’s highest ever TPC-C (transaction processing) benchmark using a Power Systems configuration with DB2, hitting 10,366,254 transactions per minute, which beat HP’s best result by more than 2.5 times and Oracle’s best by more than 35%.

The IBM result represents 2.7 times better performance per core than the Oracle result, 41% better price performance, and 35% better energy efficiency per transaction.

HP’s best result is over twice as expensive per transaction as the IBM result. “   …

Via IBM: Power7 Benchmarks.

Mode Nap Improve Processor Efficiency

Posted in energy-star-compliance, ibm, low-power, power-nap, power-saver-mode, power7, processor, reduce-power-consumption on April 3rd, 2010 by FrankM – Comments Off

Power7 processor implements Modes to lower frequency and Nap to stop power consumption, driving processor efficiency specs. …IBM Power7

… “Power Saver Mode or Dynamic Power Saver Mode: These modes can halve processor frequency to reduce energy use, or modulate voltage and frequency to optimize processor and system energy use; Processor Core Nap: A low power mode in which the hardware stops processor core execution by locking most of the circuits inside the core in the absence of workload. ” …

Via IBM: POWER7 Systems First in Class to Meet ENERGY STAR

IBM Power7 Energy Efficiency Improvements

Posted in cpu, energy-efficiency, ibm, optimization, performance, power7, processor on February 17th, 2010 by FrankM – Comments Off

IBM POWER7 Systems have been optimized for workloads and improved energy efficiencies. …

… “IBM Power 770, a modular enterprise system with up to 64 POWER7 cores, featuring higher performance per core than POWER6 processors (2) and using up to 70 percent less energy for the same number of cores as the IBM Power 570. IBM Power 755, a high-performance computing cluster node with 32 POWER7 cores, Energy Star qualified for energy efficiency, and optimized for the most challenging analytic workloads. ” …

Via IBM: http://bit.ly/aU5qo6