Acclaim and Iguana showed off Turok II: Seeds of Evil to the press today and surprisingly announced that the game will arrive on a 32 MB (256 megabit) cartridge later this year. For comparison purposes, Banjo-Kazooie utilizes a 16MB (128 megabit) cartridge and Nintendo's upcoming Legend of Zelda: The Ocarina of Time, previously thought to be the biggest cart ever, will also employ a 32MB cartridge -- the same as Turok II. But that's not all. Turok II will also feature an optional 640x480 high-resolution mode.
Source: IGN64.COM