Flanker here is what the author of windows tweak guides had to say about it, he has a 4400 and a 7800GTX and it is a slideshow.
I've just run 3DMark 2006 on my reasonable system, consisting of an X2 4400+, 7800GTX and 2GB of RAM. While my score is alright - 4275 at stock settings - I am very disappointed with this latest version of 3DMark. For starters, in an effort to force everyone to buy the Pro edition, this is the first in the 3DMark series to rehash the previous one's tests. Only the 'Deep Freeze' test stands out as an amazing new demo. Next, on my 6-month old but still fairly high end system, almost the entire demo runs like a slideshow, at around 10FPS. The CPU test in particular runs at 0.5 - 1FPS the entire time.