Dreamcast capable of other 128 bits consoles graphic level?

I always felt if Sega had a 1998 US launch for the Dreamcast, that extra one year to develop market share in North America would have given them a chance. Considering how much of a commercial success the original PlayStation was over the Saturn, it felt like the majority of gamers were perfectly okay waiting out a year till the PS2 launch. Maybe a two year wait would have made them reconsider.