Crucial 2GB (1x 2GB) DDR2-800 PC2-6400 1.8V SR x8 ECC 240-pin EUDIMM RAM Module Classification_ram-ddr2-667-rdimm-2gb-1x-dr DDR stands for double data

DDR stands for double data rate which means data is transfers on both the rising and falling edges of the clock signal

M470T2864QZ3-CF7 Capacity 1GB (1x 1GB) Brand Samsung Speed DDR2-800 - 800MT/s - PC2-6400 Voltage 1

this number is rounded up so that it shows 1067

MT/s and MHz are used interchangeably

Crucial 2GB (1x 2GB) DDR2-800 PC2-6400 1.8V SR x8 ECC 240-pin EUDIMM RAM Module Classification_ram-ddr2-667-rdimm-2gb-1x-dr DDR stands for double dataProduct Overview Dramatically improve performance and handle larger user and application workloads in your mission critical workstations and servers with this 2GB (1x 2GB) DDR2 800 MT s 240 pin EUDIMM RAM module from Crucial . This Single rank, x8 configuration RAM module is for use in DDR2 compatible systems and operates at 800 MT s with an overall transfer rate of PC2 6400. This RAM module also operates at a standard voltage of 1. 8V and is designed