For starters, you should realize that as soon as a computer achieves a level of intelligence comparable to human intelligence, it will necessarily soar past it. A key advantage of nonbiological intelligence is that machines can easily share their knowledge. If I learn French, I can't readily download that learning to you. My knowledge, skills and memories are embedded in a vast pattern of neurotransmitter concentrations and interneuronal connections and cannot be quickly accessed or transmitted.
But when we construct the nonbiological equivalents of human neuron clusters, we will almost certainly include built-in, quick-downloading ports. When one computer learns a skill...