Mitigating the Latency-Area Tradeoffs for DRAM Design with Coarse-Grained Monolithic 3D (M3D) Integration

08/26/2020
by   Chao-Hsuan Huang, et al.
0

Over the years, the DRAM latency has not scaled proportionally with its density due to the cost-centric mindset of the DRAM industry. Prior work has shown that this shortcoming can be overcome by reducing the critical length of DRAM access path. However, doing so decreases DRAM area-efficiency, exacerbating the latency-area tradeoffs for DRAM design. In this paper, we show that reorganizing DRAM cell-arrays using the emerging monolithic 3D (M3D) integration technology can mitigate these fundamental latency-area tradeoffs. Based on our evaluation results for PARSEC benchmarks, our designed M3D DRAM cell-array organizations can yield up to 9.56 power consumption, and up to 21.21 14

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