Well I was wrong. It's less than 10%. I paid €235 for an i7 2600 over two years ago. Now you get an 2600K or Xeon-version of the same CPU for that price. In fact, the only thing in this (then new) pc that's significantly slower compared to current versions is the Radeon 6850 GPU.

There's something else too: I've no clue why I would want a twice as fast PC right now. I don't game often, and many other intensive tasks are better handled by GPGPU's anyway these days. There's little which would benefit from the extra speed.

I wonder if we're getting to the same point on mobile: cpu's simply being fast enough for everything the software throws at them. They are even powerful enough for a decent desktop. So, to get back on topic, I think Jolla is doing a clever thing by using a fast enough CPU, and instead focus on something new.