A 16NM 550-1320 BTOPS/W NPU Exploiting Training-Free Structured Bit-Level Sparsity and Dynamic Dataflow Processing

To jointly achieve aggressive weight compression as well as high compute utilization for neural and transformer workloads, this chip implements a sparse NN processor exploiting structured bit-level sparsity and dynamic dataflows. Without a need for costly network retraining, the chip achieves an energy efficiency of 550-1320 BTOPS/W, realizing an up to x6.82 efficiency improvement compared to the SotA.

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Publication Details

Published
2025-06-08
DOI
https://doi.org/10.23919/vlsitechnologyandcir65189.2025.11074933
Primary Topic
VLSI and Analog Circuit Testing
Type
article
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article

A 16NM 550-1320 BTOPS/W NPU Exploiting Training-Free Structured Bit-Level Sparsity and Dynamic Dataflow Processing

Marian Verhelst, Man Shi, Chao Fang, Vikram Jain et al.
VLSI and Analog Circuit Testing
article

A 16NM 550-1320 BTOPS/W NPU Exploiting Training-Free Structured Bit-Level Sparsity and Dynamic Dataflow Processing

Marian Verhelst, Man Shi, Chao Fang, Vikram Jain, Wim Dehaene, Weijie Jiang, Antony Joseph
article en

Abstract

To jointly achieve aggressive weight compression as well as high compute utilization for neural and transformer workloads, this chip implements a sparse NN processor exploiting structured bit-level sparsity and dynamic dataflows. Without a need for costly network retraining, the chip achieves an energy efficiency of 550-1320 BTOPS/W, realizing an up to x6.82 efficiency improvement compared to the SotA.

NXP (Belgium) (BE), KU Leuven (BE)
Openalex Percentile: Top 80%
VLSI and Analog Circuit Testing
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