The 3000 (default clock at the 166MHz frequency) didn't fair quite as well in the overclocking tests. It went as high as 180MHz but absolutely no further. At 185MHz it simply locked up indicating that some things just aren't meant to be. Nevertheless if you do own a 3000 then at least you'll know that you can push the card a little bit further (if for some reason it isn't fast enough for you at 166MHz).
As explained later on- it really is so simple to adjust the graphics and memory clocks of the Voodoo3 since they are synchronized. And the gain? Well, almost 10 fps in Quake 2 demomap demo1.dm2. It's not that the 2000 isn't fast enough but this just shows that you can push the limits that bit further. With cooling aids on the way such as Tenmax's Voodoo3 cooler, we suspect that there might well be a little bit of 'oomph' left in the 2000 and 3000.
Voodoo 3 2000 Graphs

16bit - (1) 800 x 600 - (2) 1024 x 768 - (3) 1600 x 1200
Voodoo 3 3000 Graphs

16bit - (1) 800 x 600 - (2) 1024 x 768 - (3) 1600 x 1200
Benchmarks conducted on:
Pentium III 500MHz w/128MB of PC100 RAM
Abit BH6 Motherboard
10.2 Gig Quantum Fireball HD
Monster Sound MX300
3COM PCI Network Card
NOTE: We used the RETAIL drivers Version 1.0 that came with the two boards. For the 3500 pre-production board the drivers we used are NOT retail since the board isn't actually out yet there aren't any FINAL drivers.