The company is taking features of its six existing 32-bit workstations based on Intel chips and replacing those workstations with four 32-bit models also based on Intel processors.
Users will be able to choose from a host of Intel processors, including the a 3.06GHz Pentium 4 processor.
The two lower-range workstations will come with either 2.0GHz, 2.53GHz, 2.8GHz, or 3.06GHz Pentium 4 processors and the upper range workstations will feature either 2.4GHz, 2.6GHz or 2.8GHz Xeon processors.
The systems will range in price from $1,500 (£959) to $6,000 (£3,837) and will be based on Intel's Itanium processor.
The workstations, due to be released on 18 November, are described by HP as "personal" workstations. HP will also introduce two new so-called "technical" PA- reduced instruction set computing (RISC) workstations.
Before HP's purchase of Compaq, each company had unique strengths in the workstation market said Kara Yokley, research manager for market research company IDC. HP was strong in manufacturing companies, while Compaq was popular among the financial community, she said.
Dell Computer dominates the Intel workstation market, cornering half of the market in the second quarter of this year as measured by units, according to data from IDC. The combined HP/Compaq trailed with 25% of the market by units.
Both companies compete with RISC models from Sun Microsystems and IBM, HP also manufactures RISC workstations inherited from Compaq.