The 220 isn't a 250. It's not Regor, it's Deneb with intensely-gimped caches and only two cores. The per-clock performance difference between a 250 and my 220 is pretty big. I'd say my 220 at 3.5 is almost as good as a 250 at 3.0, but only with my special sort of optimized overclocking that covers everything properly, that seems to be shunned far too often by overclockers in the pursuit of bigger numbers on the core.
in a perfect world we would all be piles of sand with no ability to form coherent bodies of body