Timing Models for MOS Circuits
Timing Models for MOS Circuits
Three-Dimensional Cache Design Exploration Using 3DCacti
ICCD '05 Proceedings of the 2005 International Conference on Computer Design
ISCA '08 Proceedings of the 35th Annual International Symposium on Computer Architecture
Understanding the Energy Consumption of Dynamic Random Access Memories
MICRO '43 Proceedings of the 2010 43rd Annual IEEE/ACM International Symposium on Microarchitecture
System and circuit level power modeling of energy-efficient 3D-stacked wide I/O DRAMs
Proceedings of the Conference on Design, Automation and Test in Europe
Memory-centric system interconnect design with hybrid memory cubes
PACT '13 Proceedings of the 22nd international conference on Parallel architectures and compilation techniques
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Emerging 3D die-stacked DRAM technology is one of the most promising solutions for future memory architectures to satisfy the ever-increasing demands on performance, power, and cost. This paper introduces CACTI-3DD, the first architecture-level integrated power, area, and timing modeling framework for 3D die-stacked off-chip DRAM main memory. CACTI-3DD includes TSV models, improves models for 2D off-chip DRAM main memory over current versions of CACTI, and includes 3D integration models that enable the analysis of a full spectrum of 3D DRAM designs from coarse-grained rank-level 3D stacking to bank-level 3D stacking. CACTI-3DD enables an in-depth study of architecture-level tradeoffs of power, area, and timing for 3D die-stacked DRAM designs. We demonstrate the utility of CACTI-3DD in analyzing design trade-offs of emerging 3D die-stacked DRAM main memories. We find that a coarse-grained 3D DRAM design that stacks canonical DRAM dies can only achieve marginal benefits in power, area, and timing compared to the original 2D design. To fully leverage the huge internal bandwidth of TSVs, DRAM dies must be re-architected, and system implications must be considered when building 3D DRAMs with redesigned 2D planar DRAM dies. Our results show that the 3D DRAM with re-architected DRAM dies achieves significant improvements in power and timing compared to the coarse-grained 3D die-stacked DRAM.