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what is the difference between these types of RAM?
- Thread starter PK61871
- Start date
Moonbender
Golden Member
DDR is short for Double Data Rate and means that twice as much data gets transferred at the same clock. PC1600 and PC2100 RAM is both used in the upcoming Socket A (ie Duron/TB) boards. Benchmarks show that there is a 10% raise in overall speed when using DDR instead of SDR dimms, although that number depends on the type of application you're running.
PC1600 is DDR RAM at 100Mhz, which results in a memory bandwidth of 1.6 GB/s (I think ...), while PC2100 is DDR RAM at 133Mhz and a bandwidth of 2.1 GB/s.
RDRAM is short for RAMBUS DRAM - and that's about all I know exactly. However, most people agree that at least right now, RDRAM is of no use, though it may prove useful in the future. RAMBUS Inc. the company that developed RDRAM is the most hated company in the IT business, because of their licensing policy.
About the 16x64, 32x64, 8x64 that sounds like the transfer rates of different memory busses. I can't really guess more.
PC1600 is DDR RAM at 100Mhz, which results in a memory bandwidth of 1.6 GB/s (I think ...), while PC2100 is DDR RAM at 133Mhz and a bandwidth of 2.1 GB/s.
RDRAM is short for RAMBUS DRAM - and that's about all I know exactly. However, most people agree that at least right now, RDRAM is of no use, though it may prove useful in the future. RAMBUS Inc. the company that developed RDRAM is the most hated company in the IT business, because of their licensing policy.
About the 16x64, 32x64, 8x64 that sounds like the transfer rates of different memory busses. I can't really guess more.
Straight off the Crucial website
Configuration
This describes the structure of the memory module. The first number is the depth of the module (or, the number of signals the module sends at one time). The second is the width (of the module's data bus). To get the total megabytes of the module, multiply the depth by the width and divide by 8 (or 9 for ECC or parity; if you're not sure if you have ECC/Parity divide the width by which ever one gives you an integer). For example, a 16M72 is 16 x 72 / 9 = 128MB
Configuration
This describes the structure of the memory module. The first number is the depth of the module (or, the number of signals the module sends at one time). The second is the width (of the module's data bus). To get the total megabytes of the module, multiply the depth by the width and divide by 8 (or 9 for ECC or parity; if you're not sure if you have ECC/Parity divide the width by which ever one gives you an integer). For example, a 16M72 is 16 x 72 / 9 = 128MB