How to correctly interpret CPU/GPU performance growth graph?

Question

GPGPU

Found in some performance growth chart for CPU and GPU.
michaelgalloy.com/wp-content/uploads/2013/06/cpu-v...
In 2009, the CPU:GPU performance ratio was about 1:100,
In 2014 this ratio is about 1:5.
Actually, how is it correct to understand that CPU performance has increased, but then due to what? After all, there was no significant increase in the clock frequency. The option that the GPU is not increasing performance fast enough does not seem plausible.
What happened from 2009 to 2014 that gave such a jump in CPU performance?

Answer 1

Nothing much has changed, except that the cores were added.
And so you compare pears and apples, in the market they used to give a hundred apples for a pear, but now they began to give 5 because of the crisis.
You looked at the graph there, theoretical perks are compared