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What is the real Dram Frequency of my laptop? CPU-z, Speccy and Task Manager shows different stats.

Hey guys,

I have a Toshiba Satellite L50-B-1FF (french model).

The processor is an Intel N3530 (4 cores, 2.16ghz, memory type - DDR3 1333)
It comes with 4gb DDR3L at 1333mhz or so the specs are.
The curiosity is CPU-z, Speccy and Task Manager shows different mhz`s. I had posted two prinscreens. Please, take a look. I want to know for sure at which speed the memory is working. Bios is very poor on this model. There is nothing there to adjust or change. I have the latest update, 1.50
Task Manager shows: speed 1333mhz
Cpu-z shows: 1066mhz
Speccy shows: 666mhz

http://s14.postimg.org/jwwrnlbjl/image.jpg

http://s9.postimg.org/nyag9e5qn/image.jpg
6 answers Last reply Best Answer
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  1. Best answer
    Speccy is right. RAM frequency is always half of the number that comes after DDR3. DDR3 1333 really means that it can do 1333 MTs per second. DDR3 technology allows RAM to do 2 transfers per clock cycle, thus the data rate is double the clock speed.
  2. This is from my system... The Speed number on the right column is the speed Windows sees your memory at.

  3. Aspiring techie said:
    Speccy is right. RAM frequency is always half of the number that comes after DDR3. DDR3 1333 really means that it can do 1333 MTs per second. DDR3 technology allows RAM to do 2 transfers per clock cycle, thus the data rate is double the clock speed.


    This. CPUz looks to be pulling the spec while Speccy is pulling what it is currently set at.
  4. 666 + 666 = 1332, make sense. I have read about what Aspiring Techie wrote but i thought this is valid only when you have a pair of ddr ram, not only one piece like i have. My curiosity is put at rest. You guys rock!
  5. DDR stands for Double Data Rate so it is always half the speed of what is stated but since it is able to send two bits of data at a time it gives the effective speed.

    What you thought gave it that is just a second channel which gives double the bandwidth in theory.

    If this was RAMBUS RAM, from way back when DDR first came out, it would be able to send a single bit at a time but it also ran at a higher speed.

    For example, RAMBUS 800 ran at 800MHz while DDR2 800 ran at 800MHz sending two bits making it effectively the same speed as the RAMBUS 800.
  6. * ddr stands for Double Data Rate - i didn`t think of that -:)

    Anyway, even if it was at 1600mhz, it`s not the frequency, the ram capacity, nor the cpu which make my laptop pretty slow... it`s the hard disk. Just 5400rpm with 8mb cache, sata II. It struggles.

    Thanks for the info, Jimmy!
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