what is the physical difference between these types of ram... which is the longest? shortest? fatest?
post #1 of 30
4/18/06 at 5:39am
Originally Posted by mootin
techinally ddr2 is fastest, what do you mean longest/shortest pc133 is just not even worth talking about to be honest the pyshical differences between the 3 types of ram is the number of pins they have and the stock voltage they use....i think
Originally Posted by dragosmp
This can halp, it's a good place to start: http://www.howstuffworks.com/ram.htm
The thing is like a little more complicated than it seems. Allthow it seems logical that DDR2 should perform better than the DDR it's not always the case, but the fact is that
- PC133SDRAM performs the worse with a max bandwidth of 1066MB/s
- DDR performs better depending on the frequency. The difference from the tech pov is huge between SDR and DDR. DDR200 has a bandwidth of 1600MB/s and it goes to 3.2GB/s or 4.0GB/s for DDR400 or DDR500, so it outperforms PC133 DDR easily.
- DDR2 performs slightly better due to higher frequency than the DDR. Roughly we can say that mainstream DDR400 equals mainstream DDR2-533 on performance. With DDR2 you start seing gains when using DDR667, DDR800 or higher.
Originally Posted by guitar22891
I already know I all that you miss understood my question.....not bandwidth or speed but the physical LENGTH...6 inches stuff like that........
Someone correct me if I'm wrong but I believe DDR2 is longest, then PC133, then DDR is the shortest right?