Yes, 3dmark05 stresses the GPU almost independently from the CPU in the Game tests. But with the CPU tests it reverses the test and reduces the GPU load to nearly zilch by turning off loads of fancy effects and instead putting lighting and shadowing on the CPU, along with lowering the resolution to like 640x480. Video card will make little difference here, unless you are running like a Geforce FX 5200 or lower.
LucidChaos, how did you score 5,736 CPU points?!!? That's like 3,000 higher than my 2.13GHz! That seems off a bit lol. You would be in like 5GHz P4 territory there haha. I see you have newer beta video drivers than I. They might be doing something wrong..
http://service.futuremark.com/compare?3dm05=894338
BTW, last night I went in and changed my CPU's thermal pad for some Arctic Silver 5. I think it dropped 3-4 degrees. A small improvement. And, I strongly recommened everyone buy some ArticSilver Arcticlean because that stuff cleans the old pad and paste off miraculously (and it's not carcinogenic, narcotic, caustic terrible crap. In fact, it's citrus-ish! It smells GOOD!). For $6 and the fact you only need a few drops (!) to clean anything, it's AWESOME! Within a couple of seconds it just dissolves the old pad and it looks like you have a brand new surface to work with. Part 1 just annihilates that nasty old pad or paste and Part 2 cleans finally and prevents oxidation.