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Comparison between spiking and non-spiking forward-pass energy consumption and memory usage.
| architecture | energy | architecture | energy | ||
|---|---|---|---|---|---|
| dense | Loihi (nJ) | GPU (nJ) | LSTM | Loihi (nJ) | GPU (nJ) |
| FC1 | 6.9e-2 | 0.61 | LSTM1 | 0.28 | 2.5 |
| FC2 | 1.3 | 160 | LSTM2 | 11 | 2.5e3 |
| FC3 | 1.3 | 160 | LSTM3 | 10 | 2.5e3 |
| FC4 | 1.2 | 160 | FC1 | 2.6 | 630 |
| FC5 | 0.3 | 39 | FC2 | 0.21 | 39 |
| total energy | 4.25 | 512 | total energy | 24 | 5.7e3 |
| reduction | ×120 | reduction factor | ×238 | ||
| synaptic memory | 0.86 MB | synaptic memory | 9.5 MB | ||
