Because one is a released product and one is an early engineering sample. The chip isn't finalized yet and they probably haven't hit final clock speeds. They did it to provide a 1:1 comparison and demonstrate the IPC of the zen chip vs the Intel chip. There's no use arguing over it when we don't know what the release version of zen will be capable of. The point is, clock for clock, according to AMD, zen is ahead of broadwell e. Unless you are a horrible fanboy that should excite you. We won't know whether the clock speeds will be able to match Intel's offerings until launch but based on my past experience over clocking AMD CPUs I'm hopeful they will. However, even if the clock speeds aren't up with intel it could still provide some much needed competition in the CPU marketplace if they price it right, and force Intel to respond in a more meaningful way than sitting on their asses like they have basically since sandy bridge. No matter how you look at it, even if this chip can't go much higher than 3.2, this is a good step for AMD and a good sign for tech enthusiasts.