Quad-Core AMD Opteron processors improve power efficiency with several key technologies:
Enhanced AMD PowerNow!™ Technology: For Reduced Power Consumption by the Entire Processor
Native quad-core technology enables enhanced power management across all four cores.
Independent Dynamic Core Technology allows each core to vary its frequency, based on the specific needs of the application. This allows for more precise power management to reduce data center energy consumption and thereby reduce total cost of ownership (TCO).
Dual Dynamic Power Management™ allows each processor to maximize the power-saving benefits of Enhanced AMD PowerNow! technology without compromising performance. Dual Dynamic Power Management can reduce idle power consumption and allow for per-processor power management in multi-socket systems to decrease power consumption.
AMD CoolCore™ Technology: To Reduce Power Consumption Within Each Core
AMD CoolCore Technology evaluates which parts of the die – the cores, the memory, or both – are needed to support currently running applications. It can cut power to unused transistor areas to reduce power consumption and lower heat generation.
Integrated DDR2 DRAM Memory Controller: Low-Power Memory To Reduce Power Consumption
AMD’s Integrated Memory Controller works exclusively with high bandwidth, energy-efficient DDR2 memory. It incorporates Memory RAS for increased fault tolerance to reduce system downtime and increase system reliability.
DDR2 memory can improve overall TCO by reducing memory power consumption almost 8 watts per DIMM compared to Fully Buffered DIMM memory technology.
A More Relevant Way to Measure Processor Power
Average CPU Power (ACP)
Customers prefer a more accurate way to account for processor power rather than engineering Thermal Design Power (TDP). Over-estimating power budgets by leveraging engineering design limits can lead to wasted data center space and inefficiencies. So AMD has defined a new metric offering users a more useful way to evaluate typical processor power consumption. ACP values are determined by measuring processor power consumption including power for the cores, memory controller and HyperTransport™ Technology links while running accurate and relevant commercially useful high utilization workloads.
For more information read the Average CPU Power white paper (PDF). |
