Quick question

[jl123]

What is the talk about the PC-2100 ??? I know it's the DDR memory but why such a high number? What does the numbers stand for?? http://www.sysopt.com/forum/smile.gif

~Joel

[Fingers]

What do the numbers in PC100, PC133, PC1600, and PC2100 stand for? - Crucial FAQ (http://support.crucial.com/scripts/crucial.exe/solution?11=010612-0004&130=000992366697&14=&2715=&15=&2716=&57=search&58=&2900=&25=6&3=2100)

http://www.sysopt.com/forum/smile.gif

[jl123]

GRrr! http://www.sysopt.com/forum/smile.gif I didn't know what the 1600 or the 2100 meant. Thanks a lot.

~Joel

[Yar1182]

It's a little tricky because they're using MB and MHZ interchangably. When we think of traditional SDRAM it's in MHZ's a second. DDR does a marketing change up on us. The formula is (64bit x MHz x 2) / 8 = MBytes a second). That's how they get such high numbers like 1600, 2100, and 2400. I think it's tricking the public with apples and oranges. Don't get me wrong, DDR is plenty fast and plenty cool, but it gives you a false sense of how fast it actually is.

DDR SDRAM is categorized by the transmission rates. One is PC 1600, which is named by its 1600MB/s data transmission rate, and it is also called DDR 200 because of its 200 MHz data transmission speed.
DDR 200/PC 1600¡G(64bit x 100MHz x 2 / 8 = 1600MBytes / sec)
The other is PC 2100, which is named by its 2100MB/s data transmission rate, and it is also called DDR 266 because of its 266MHz data transmission speed.
DDR 266/PC 2100¡G(64bit x 133MHz x 2 / 8 = 2100MBytes / sec)



[This message has been edited by Yar1182 (edited 06-16-2001).]

[MiKe85]

Fingers:

Good link, thanks!!