Samsung DDR2 SDRAM 512MB X2 1GB modulo di memoria PC2 533 e PC2 667 rispettivamente
The main differences are capacity (512 MB vs. 1 GB) and speed (533 MHz vs. 667 MHz). Top Module (Part Number: M470T6554CZ3-CD5). Bottom Module (Part Number: M470T2864QZ3-CE6). • Capacity: 512 MB. • Capacity: 1 GB.