grep/awk/sed lines from match until text

I would like to get the following output from lscpu:

(number of cores) x (cpu model name) @ (max mhz)

I already figured out the attribute I need: - Model name: - Core(s) per socket - CPU max MHz But on my system, there are multiple CPUs with different models and clock speeds. So I have multiple attributes in output named Model name:. I want the output mentioned above, only with grep, awk and/or sed. Any help will be appreciated.