Sorry if this is a repost, but here's FutureMark's take on the nVidia/ATI difference. This came with my email and had the Q&A at the bottom.
Q: Do scores change with the patch?
A: Yes. Although the actual workload in the benchmark is not changed at all,
we have noticed substantial performance score changes in NVIDIA hardware and insignificant performance change e.g. with ATI hardware. Thus, only build 330 scores should be used from now onwards.
BPG_folding (4 of 4)
XP 2400+/ XP 2100+
1GB 3200/ 256MB 2100
80GB Maxtor, 2x120MB WD/ 60GB WD
ATI 9700Pro 128MB/ ATI 8500 128MB
nVidia Soundstorm/ SIS Onboard
Antec 430 True Power/ Antec 350 Smart Power