They're mainly differentiated by the number of memory channels. Ryzen has 2, Threadripper has 4, and EPYC has 8. And secondarily whether there's a GPU built-in or not... which is only the APUs (the G parts), and presumably also the laptop 'U' parts that just came out.
-Matt On Tue, Sep 11, 2018 at 6:14 AM Gerald Henriksen <ghenr...@gmail.com> wrote: > On Tue, 11 Sep 2018 04:25:34 -0400, you wrote: > > >Is the APU part of the CPU or a separate chip? Does the Threadripper come > with > >an APU? > > Current "main" AMD chips - not mobile chips - basically break down to > 4 families: > > 1) Threadripper - no APU > > 2) Ryzen - no APU > > 3) Ryzen with APU (aka Raven Ridge) > > 4) Epyc - server / datacenter chips > > It is unfortunate that AMD hasn't (at least from my casual glances) > differentiated the Ryzen lines better than just appending a G onto the > model number. > > It appears that currently the only Ryzen that come with the APU are > the Ryzen 5-2400G and 3-2200G. >