Despite uncertainties in the PC market, both chipmakers have big plans for 2001. [...] The corporate platform will be based around the new AMD 760 chip set and forthcoming processor core, code-named Palomino, due to arrive at 1.33GHz in the first quarter, according to AMD. [...] Intel will work to drive the new Pentium 4 chip into the mainstream PC market, even as it pushes the chip's clock speed past 2GHz.