I just bought a no name Geforce2 MX that clocked at 143Mhz for engine and memory. My system spec is:
QDI Legend Advance 9 with Via Apollo PRO 133 chipset
Pentium III 600
128 Mb of ram
Creative Vibra 128
Windows 98 SE
Via 4 in 1 4.25a
My score for 3DMark is 2412 at defaut clock and 2845 at 175 core and 166 mem.