Linode 8GB plan - need to clear some doubts

Hi,

I am considering to go for Linode 8GB plan. As I have never used Linode before, I have a few questions. Would be glad if someone could answer them

8 CPU (8x priority) - What does it exactly mean. I read in their FAQ's that a typical Host of 8GB linodes would have 5 hosts on it and its hardware should be having 40GB RAM with a 8 Core CPU . Now if all the hosts on that machine use their max CPU's, would everyone then get guaranteed power of 1.6 cores ? And what does 8x mean?

Thanks

KS