The reason this will never happen in the way you&#x27;re imagining it, is yields.  16 GB of ram is just too much die area.<p>In a small way, this has already happened, though.  The intel Iris Pro has 1.5 GB of basically 4th level cache, shared between the GPU and the CPU.<p>I could see memory on the package, though, which might generate some of the benefits you&#x27;re looking for.