What is DDR2 PC?

What is DDR2 PC?

Consiste DDR2 RAM is the abbreviation for “double data rate fourth generation synchronous dynamic random-access memory”, the latest variant of memory in computing. DDR2 is able to achieve higher speed and efficiency thanks to increased transfer rates and decreased voltage.

What does PC2-6400 mean?

DDR2 PC2-6400 (commonly referred to as DDR2-800) memory is DDR2 designed for use in systems with a 400MHz front-side bus (providing an 800MT/s data transfer rate). The “6400” refers to the module’s bandwidth (the maximum amount of data it can transfer each second), which is 6400MB/s, or 6.4GB/s.

Does DDR2 support 8gb RAM?

DDR2: 2 x 1.8V DDR2 DIMM sockets supporting up to 8 GB of system memory, Support for DDR2 1066(O.C.)/800/667 MHz memory modules.

What is the difference between a DDR2 SO-DIMM and DIMM?

Laptop DDR2 SO-DIMMs have 200 pins and often come identified by an additional S in their designation. DIMMs are identified by their peak transfer capacity (often called bandwidth).

What is the memory clock of a 64 bit DDR2?

DDR2 chips have a single (differential admittedly) clock called CK sort of corresponding to what the article calls I/O clock. I have no idea what “memory clock” is all about. Data is transferred on both edges of CK. So 200MHz CK gives 400 MTransfers/s so if there are 64 bits throughput is 3200MB/s in a bursty intermittent way.

What is the comparison of DDR2 SDRAM standards?

Comparison of DDR2 SDRAM standards Name Name Name Chip Chip Standard Type Module Clock rate ( MHz) Cycle time ( ns) DDR2-400 B PC2-3200 100 10 DDR2-400 C PC2-3200 100 10 DDR2-533 B PC2-4200* 133 7.5

What is the difference between a 240-pin and a DDR2 module?

DDR2 is a 240-pin module, DDR is a 184-pin module. Notebooks have 200-pin SO-DIMMs for DDR and DDR2; however, the notch on DDR2 modules is in a slightly different position than on DDR modules.