Pentium 4 chips running at clock speeds of 2.53GHz, 2.40GHz, and 2.26GHz were introduced, according to Intel representatives.
Aimed at the high-end PC market, each new Pentium 4 chip is supported by a 533MHz system bus.
Earlier Pentium 4 chips communicated to the rest of the PC via a 400MHz system bus. The faster 533MHz bus will assist the increased clock speeds of the chips in delivering added performance to PC end-users, said Intel.
All three chips are supported by the 850e chipset.
A Pentium 4 processor running at 3GHz is expected to arrive by the end of this year, according to sources.
A 2.53GHz, 2.4GHz, and 2.26GHz Pentium 4 processors start at $637 (£434), $562 (£383) and $423 (£289) respectively, per 1000 units.