DDR 1600 / 2100 / 2700 / 3200 What do all the numbers mean?
DDR memory chips are commonly referred to by how much data they can transfer.
A PC1600 memory module uses DDR200 chips and can deliver bandwidth of 1600MB/second. PC2100 uses DDR266 memory chips, resulting in 2100MB/second of bandwidth. PC2700 module uses DDR333 chips to deliver 2700MB/second of bandwidth. And PC3200 uses DDR400 chips to deliver 3200MB/sec of bandwidth. To summarize :
DDR266 = PC2100 2.1GB/sec
DDR333 = PC2700 2.7GB/sec
DDR400 = PC3200 3.2GB/sec
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