That's almost exactly what the Xeon Phi was, both in coprocessor form and in machine form. It included MCDRAM, too, which was a high-bandwidth memory. Very efficient, but lacked sales; people didn't want it.
Part of that, I think, was lack of parallelism in applications: in order to fully take advantage of those cores, you need to have a nearly-embarrassingly-parallel problem. Otherwise, you're not going to get the performance that you'd expect (but you'll get power efficiency!).
The fact of the matter is, that's not "all anybody wants."
Part of that, I think, was lack of parallelism in applications: in order to fully take advantage of those cores, you need to have a nearly-embarrassingly-parallel problem. Otherwise, you're not going to get the performance that you'd expect (but you'll get power efficiency!).
The fact of the matter is, that's not "all anybody wants."