Twinmos 1GB, DDR2, 667MHz PC5300 1GB DDR2 667MHz memory module

1GB, DDR2, 667MHz PC5300 Compared to the 4-bit pre-fetch design of DDR2 modules, the new-generation of DDR3 modules use an 8-bit pre-fetch design, representing a doubling over the DDR2 pre-fetch. Both DDR3 and DDR2 modules use a 240-pin-architecture, but compared to the DDR2 working voltage of 1.8V, the working voltage of DDR3 has been reduced to 1.5V, which helps increase the battery life for laptops.