Actually, it is a quad core i7 950...and it runs 8 threads so to the OS it looks as though it is running 8 individual cores.
As a side note, I am typing this on a computer with a core i7 975(oced to 4.2ghz with HT), 24GB of RAM, 2x xFx GTX295s, 2x120GB OCZ Vertex SSDs in RAID 0(OS and apps), a pair of 300GB Velociraptors in RAID 0(storage backed up to a 1.5TB external) displaying on a 30inch Dell LCD. And I just browse the intrawebz!!!
I actually only have $3200 in this machine so far...
WOW!
That computer made you type that really fast!