I remember hearing about one back in the early 2000's, but I'm unable to find the article I read way back then. I recall it making some extremely lofty claims r

I remember hearing about one back in the early 2000's, but I'm unable to find the article I read way back then. I recall it making some extremely lofty claims regarding clock speed, somewhere on the order of 300 GHz IIRC, but it never saw the inside of a production machine as far as I know.