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DARPA SyNAPSE board with 16 TrueNorth chips

TrueNorth is a neuromorphic CMOS integrated circuit produced by IBM in 2014.[1] It is a manycore processor network on a chip design, with 4096 cores, each one having 256 programmable simulated neurons for a total of just over a million neurons. In turn, each neuron has 256 programmable "synapses" that convey the signals between them. Hence, the total number of programmable synapses is just over 268 million (228). Its basic transistor count is 5.4 billion. Since memory, computation, and communication are handled in each of the 4096 neurosynaptic cores, TrueNorth circumvents the von-Neumann-architecture bottleneck and is very energy-efficient, with IBM claiming a power consumption of 70 milliwatts and a power density that is 1/10,000th of conventional microprocessors.[2] The SyNAPSE chip operates at lower temperatures and power because it only draws power necessary for computation.[3]

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  1. ^ Merolla, P. A.; Arthur, J. V.; Alvarez-Icaza, R.; Cassidy, A. S.; Sawada, J.; Akopyan, F.; Jackson, B. L.; Imam, N.; Guo, C.; Nakamura, Y.; Brezzo, B.; Vo, I.; Esser, S. K.; Appuswamy, R.; Taba, B.; Amir, A.; Flickner, M. D.; Risk, W. P.; Manohar, R.; Modha, D. S. (2014). "A million spiking-neuron integrated circuit with a scalable communication network and interface". Science. 345 (6197): 668. doi:10.1126/science.1254642. PMID 25104385.
  2. ^ How IBM Got Brainlike Efficiency From the TrueNorth Chip
  3. ^ "Cognitive computing: Neurosynaptic chips". IBM. 11 December 2015.

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