IBM computer "world's fastest"

[[FnG]magnolia]

The computer is capable of calculating in one hour what otherwise would take 6.7 billion people using hand calculators 320 years to complete if they worked non-stop.

I've just been reading this article from the BBC and am struggling to get my head around the above quoted paragraph. I imagine they've used that comparison to provoke that very sense of 'woah!' but I wonder how the supercomputer would compare to, say, a mid-range home PC? Regardless, those are some pretty bonkers stats.

Imagine what Skyrim would look like on it