I didn't say you could.
Read my post again.
The high end iMac has as many cores as the low end MP.
The high end iMac has four cores.
The low end MP has four cores.
(both have hyperthreading, providing four more partial cores)
Get it now?
Lol. Of course I get it. I was not confused.
What confuses me is why anyone would buy a 4-core Mac Pro over an iMac.
As far as I am concerned the 4-core MP doesn't exist. Thus when reading a generic comparison of "iMac vs Mac Pro" I presume you are comparing a 4 core iMac to an 8 core Mac Pro.
Get it now?