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System integration and performance requirements are dramatically increasing the power consumptions and power densities of high-performance microprocessors. High power consumption introduces challenges to various aspects of microprocessor and computer system design. It increases the cost of cooling and packaging design, reduces system reliability, complicates power supply circuitry design, and reduces...
With continued technology scaling, process variations will be especially detrimental to six-transistor static memory structures (6T SRAMs). A memory architecture using three-transistor, one-diode DRAM (3T1D) cells in the L1 data cache tolerates wide process variations with little performance degradation, making it a promising choice for on-chip cache structures for next-generation microprocessors.
Near-threshold voltage computing can significantly improve energy efficiency; however, both operating speed and resilience to parametric variation reduce as the operating voltage reaches the threshold voltage. To prevent degradation in throughput performance, more cores should contribute to computation. The corresponding expansion in the chip area, however, is likely to further exacerbate the already...
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