This is why neuromorphic computing is a promising field - our brain is the most power efficient computing device. Our computers are a pale shadow of them.

Neuromorphic means we will try to mimic how the brain computes. It is drastically different from rest of technology https://twitter.com/lexfridman/status/1390356811732029441

For starters our brain computes using neurons which use "spikes" to encode information. They keep giving out a train of spike pulses - the value of actual spike is unimportant. The interval/periodicity of spikes carry the actual information.

So in neuromorphic computing, we try to mimic this method for computing. This leads to a massive parallel processing with de-centralised memory.

Are there any real benefits of this technology other than saving power?

Yes, it enables unsupervised learning which is more powerful than current machine learning methods.

When will we see chips made using this technology?

Umm.... The prototypes are being used by researchers now. There is a promising market for them.