"Unlike other video card companies, IO Magic used
166MHz modules. Other companies use 143MHz modules and
overclock the memory modules to meet specifications.
Using good quality modules from Samsung allowed us to
overclock this card to 210/200(core/memory) without
any problems. The performance increase gained by
overclocking this card was fantastic."
FULL STORY @ MRPCPRO (http://www.mrpcpro.com/reviews/iomagic/3dmx-intro.htm)