Intel Pentium III Xeon 667

This Pentium III Xeon 667 comes with heatsink installed out-of-the-box and is able to run with 5V or 12V. Because the core itself only needs about 1,65V I suspect this CPU has a voltage regulator built-in.

As the specifications are the same as the Pentium III 667 the performance of this CPU will be equal.