At least the desktop versions are clear enough, although in the last years there have been experiments (non-HT versions) and shenanigans (8086K, a "100% marketing non-product").

If we one really wants to point out obscure (arguably dishonest) denominations, AMD, at least in the past, has done a lot of rebranding in the GPU department, and for at least a few years, it was impossible to know, based on the name, which generation a GPU belonged to, since they mixed them across the classes (R3/R5/R7).