One Billion Neurons on a Desktop Computer - DZone Open Source

The open-source Brain Simulator II neuron engine has been successfully tested with one billion neurons on a desktop computer comprised completely of off-the-shelf components. From a performance perspective, this system processes more than 2.5 billion synapses per second. For this test, the network included 10 million neurons with 500 synapses per neuron, for a total of 5 billion neurons which could be fully processed in 1,900 milliseconds. For comparison, the identical program on a four-year-old, four-core CPU can only achieve 0.7 billion synapses per second. The computer in this example included an AMD Ryzen Threadripper 3990X CPU running at 2.9Ghz (not overclocked) and 128 Gigabytes of RAM.