The University of Tulsa
The main memory system is a significant performance and energy bottleneck in modern high-performance platforms. Several trends threaten to amplify the memory bottleneck. It is increasingly evident that overall performance/cost and performance/watt are improved by using simpler cores. This shifts the energy bottleneck from processor to memory. Simpler cores offer increased core count per die, placing greater pressure on memory bandwidth. Simpler cores also tend to be less effective in hiding memory latency. There is also a demand for higher memory capacities because of the data-intensive workloads that execute on many datacenter platforms.