Also, I don't understand the uproar over one small little overall percentage number- the rest of the numbers are there for anyone to easily weigh one against the other. Just a few lines down it's clear than the 18-core part demolishes the 4-core part in multi-core workloads (as anyone would expect without even visiting the website in the first place).
Being able to handle more programs at a time/etc really has no bearing on "effective speed"- if their workloads are not apps that take advantage of 18 cores (encoders, etc), it's possible a 4-core part could "feel" just as fast, or faster, than an 18-core part if it does their workload faster.
That said, the whole AMD/Intel war is less important to me because fanboyism in any amount is toxic and worth avoiding. People biased heavily enough towards one company will always see anything like this as some kind of conspiracy or attack, regardless of whether or not it's true (something I don't know in this case)