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Home > Archive > Hardware > March 2004 > Ram too many types
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Ram too many types
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| spyboy 2004-03-06, 7:58 pm |
| Hey folks
I am looking for a little bit of extra info.
I have a choice of ram
DDR 266 , pc2100 or pc2700
What is the proper order for these types of RAM
Cheers
Simon | |
| azimuth40 2004-03-06, 8:56 pm |
| quote:
Originally posted by spyboy
Hey folks
I am looking for a little bit of extra info.
I have a choice of ram
DDR 266 , pc2100 or pc2700
What is the proper order for these types of RAM
Cheers
Simon
DDR 266 is a frequency 266MHz where PC2100 is the byte transfer rate, known as bandwidth or 2.1GB/sec. This is a different definition than for SDR memory which is strictly the frequency PC66/PC100/PC133.
The PC number for DDR more closely approximates RAMBUS ratings. There was once a serious battle between the two with new benchmarks every day.
As a general rule of thumb you can take the PC number and divide by 8 and round to a frequency. PC2700 is DDR 333 and PC3200 is DDR 400.
Oh yes one more thing, since the memory is synchronous (clocked) a higher number DDR can be used in a lower FSB motherboard. | |
| Kasor 2004-03-06, 10:00 pm |
| Also cost more than other type |
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