How to calculate Bandwidth?

[andlcs]

Whatz up people?

Memory question again:
For example DDR400 tranfers 3200Mb/s maximum right? How can I calculate for example DDR433 max tranfer?

ThanX

 

[yhelothar]

433MHz x 64bit bus ÷ 8 bits per byte = 3464MB/s

 

[bjc112]

Originally posted by: virtualgames0
433MHz x 64bit bus ÷ 8 bits per byte = 3464MB/s

Cooooooorrrect.

 

[Duvie]

Originally posted by: bjc112

Originally posted by: virtualgames0
433MHz x 64bit bus ÷ 8 bits per byte = 3464MB/s

Cooooooorrrect.

Hmmmm...hence why it is called pc3500 (3500mb/sec) or why ddr400 is called pc3200 with its 3200mb/s of bandwidth....

 

[andlcs]

Thank you... Fast reply...

8 bits per byte : what's this exactly?

And how do I calculate the transfers for RAMBUS memory?

 

[JustAnAverageGuy]

Originally posted by: andlcs

8 bits per byte : what's this exactly?

Because there are 8 "bits" (binary 0 or 1) in a byte (letter, number, character)

8 binary 0 or 1s to make a letter, number, or character

 

[InlineFive]

Originally posted by: JustAnAverageGuy

Originally posted by: andlcs

8 bits per byte : what's this exactly?

Because there are 8 "bits" (binary 0 or 1) in a byte (letter, number, character)

8 binary 0 or 1s to make a letter, number, or character

Most cases distinguished in, say, MBps or Mbps. Capital "B" being Bytes, lowercase "b" being bits. That is why you may have a 100Mbp/s network but some benchmarks may only say 12.5MBps!

 

[AgaBoogaBoo]

Originally posted by: andlcs
Thank you... Fast reply...

8 bits per byte : what's this exactly?

And how do I calculate the transfers for RAMBUS memory?

When you send a single character in an AIM chat, the actual character is represented by a combonation of 8 0's/1's.