RAM Frequency

Hi,
I got a new notebook (Dell Inspiron E1705), and I was checking whether all the hardware was OK. I ran CPU-Z for the processor and the memory.
The processor was OK, but the memory was said to had a frequency of 667MHz (which actually was an upgrade I had to pay for, because default was 533MHz), and CPU-Z says it has 333MHz.
Didn't I understand anything properly, or should I call Dell?
Thank you for your help.

P.S.: I've got 2x1GB DDR2 Dual Channel.

 

DDR stands for double data rate. actual speed is 333 and 667 is effective speed

 

The 333Mhz is the speed of the Memory Bus. DDR (Double Data Rate) RAM runs at a frequency double that of a memory bus, and so, your RAM runs at 667Mhz.

 

Hello,

My name is Richard; I work for Dell's Online Community Outreach group. The previous posts are correct the utility is reporting a single cycle of the memory speed which is 333 MHz. However, your computer has DDR2 memory, which works on the up and down cycle- this doubles the amount of data that is transferred. So it is 333 Mhz x 2 = 667 Mhz.

This question is not unusual as not everyone is going to know what DD2 or Front Side Bus really means. People care that it works and they received what they paid for, which is completely understandable.

Sometimes third party utilities will not always report exactly the information you can understand. If you have doubts as to the speed or even the size of your memory installed, just take a look. The compartment that houses the memory is underneath the system.



Memory is an easily removed part, and in most cases you will not actually have to remove it to see its specifications, just remove the memory cover



I hope this help you out and anyone else who has come across something like this.

Regards,

Richard B
Dell Online Community Outreach