1.5. General overview of pSeries 670 and pSeries 690

The pSeries 670 has some differences from the pSeries 690. Basically it has the same technical advantages and Reliability, Availability, and Serviceability (RAS) features, but it is a single rack server and has several configuration limitations compared to the pSeries 690. Table 1-1 provides a quick overview of the differences between these two models.

Table 1-1. Differences between pSeries 670 and pSeries 690

Component	pSeries 690	pSeries 670
Number of CPUs / MCMs	8-32/1-4	4-16/1-2
4 way 1.1GHz POWER4	No	Yes
8 way 1.1GHz POWER4	Yes	Yes
8 way 1.3GHz POWER4 Turbo	Yes	No
4 way 1.3GHz POWER4 HPC	Yes	No
4 way 1.5GHz POWER4+	No	Yes
8 way 1.5GHz POWER4+	Yes	Yes
8 way 1.7GHz POWER4+	Yes	No
Amount of memory (GB)	8-512	4-256
Number of memory cards	1-8	1-4
Number of I/O drawers	1-8	1/2[a] - 3
Number of PCI slots	20-160	10-60
IBF feature	Yes	Yes
Number of racks	1-2	1

^[a] As an initial order, just one half I/O drawer can be used with 10 PCI slots.