How do I compare SSD hard drives to traditional magnetic 2.5" hard drives

I am trying to get a better sense of the real value of an SSD hard drive for my use compared to traditional hard drives.

My particular use is on a notebook, so key areas would be replacing the internal 2.5" HD, as an USB2.0 drive for OS loading, for Swap file work, for boot time, for resuming from Hibernation, for saving to hibernation. Any feedback would be appreciated. I notice that the existing charts do not match or use the same scales so comparing apples to apples is a challenge.