5.2 Performance

The following table lists the performance of QDR families.

Table 5-1. Performance of QDR Families
ParametersQDR II+QDR II+ Xtreme
Frequency2-Word Burst333 MHz400 MHz
4-Word Burst500 MHz550 MHz
Density18, 36, 72, or 144 Mb36 or 72 Mb