Might be interesting to some folks. Some quick tabulations via an Excel sort:
There are a lot of "unknown"/"other" cards, tho: almost 80,000! I don't know if those contain ATI SKUs that aren't represented in the individual names (X800XL, X800SE, X700/P), or 6600s that I know are out there, or what. So, while it's safe to say that ATI won the last round (excluding the low end, where the FX5200 outsold the DX8 9x00 by almost 2:1), it's hard to know by how much NV has won this one--of if they have at all. Lotta GF4/MXs out there, still.
Also, the vast majority of users are on XP, and it's a pretty even split b/w Intel and AMD.
Code:
Drivers:
nv4_disp.dll 367,198 51.12 %
ati2dvag.dll 298,739 41.59 %
Total GPUs:
ATI 285,957
NVIDIA 339,710
GPU breakdown:
ATI 9500-9800 184,433
ATI X800 20,256
NV 6600 3,724
NV 6800 36,790
NV 5500-5950 81,891
NV GF4/MX 106,327
Also, the vast majority of users are on XP, and it's a pretty even split b/w Intel and AMD.