> integrate DRAM on the wafer. This will be painful as we're used to being able to simply add DIMM's, but the upside is massively higher bandwidth. One way I i

> integrate DRAM on the wafer. This will be painful as we're used to being able to simply add DIMM's, but the upside is massively higher bandwidth. One way I imagine this working out is that, instead of just replacing the plastic motherboard with a silicon motherboard, you eventually do away with a single monolithic motherboard entirely. Instead, you have "compute blocks" (comprised of chiplets bonded to a silicon chip, or conventional chips on a conventional circuitboard) that connect with each other via copper or fiber optic point-to-point communication cables, and you can just wire them together arbitrarily to build a complete computer. Like, you might have a couple blocks that house CPUs, one or two that have memory controllers and DRAM, and maybe one with a PCI bus so you can connect peripherals, and you can connect them all in a ring bus. You could house these blocks in a case and call it a server, or connect a lot more blocks and call it a cluster. The main advantage of such a setup is that you don't have a single component (the motherboard) that determines how much memory, how many processors, or what sort of peripherals you can have.