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=== History ===
Other architectures such as the [[Cell microprocessor]] have exhibited features significantly overlap with AI accelerators (support for packed low precision arithmetic, dataflow architecture, throughput over latency). One or more [[DSP]]s have also been used as neural network accelerators<ref>{{cite web|title=convolutional neural network demo from 1993 featuring DSP32 accelerator|url=https://www.youtube.com/watch?v=FwFduRA_L6Q}}</ref>.
The [[Physics processing unit]] was yet another example of an attempt to fill the gap between [[CPU]] and GPU in PC hardware, however physics tends to require 32bit precision and up, whilst much lower precision is optimal for AI.
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