Since I have my PC on 24/7 I find that the speed of it booting is completely irrelevant.
It is Fast however at booting, giving me a full desktop in under 10 seconds from off.
To be honest with you, I have found that a lot of the software I use is no fater with faster CPUs. One serious bug-bear is that when I went from Dual ore, to Quad, I never once saw a single app that I use, make any improvements at all.
In fact, in some apps, I dropped in speed and Folding At Home seems to be the big one on that.