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My RAM Speed is 1333Mhz,But Why it says 667.1

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  • RAM
  • Speed
  • Dual Channel
  • Memory
Last response: in Memory
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January 23, 2014 9:37:33 AM

Hello i just want to know why my RAM Memory it 's been shown as 667.1 Mhz,when she is on 1333Mhz speed.
It is 8 GB 2 x GB's Dual Channel
So i see other CPU-Z Snapshots of RAM Memorys and everywhere if the RAM spped is 1600 Mhz it s been show as =798.1 Mhz or for 1066Mhz Speed is Been shows as 533.1 Mhz..
So can any one explane me this i really need to know ,is this normal way of showing RAM memory speed or it s something wrong,but like i said everyone hase the same so i need to know why it is been writen and shown as that...

So again i have 8 GB's DDR3 on 1333 Mhz,2 x 4GB's on Dual Channel..


Thanks so Much i eed answers soon...

More about : ram speed 1333mhz 667

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a b } Memory
January 23, 2014 9:39:41 AM

667*2=1334. CPUz is looking at the DRAM speed. Since your RAM is DDR3 (Double Data Rate) you have to double that number. Cpuz should really explain this since I see this question all the time.
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a b } Memory
January 23, 2014 9:39:53 AM

DDR = Double Data Rate.

So 667 x 2 = 1334Mhz
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January 23, 2014 9:50:36 AM

correct just like gddr5 is quad speeds 1500x4=6000mhz
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January 23, 2014 9:51:51 AM

wanderer11 said:
667*2=1334. CPUz is looking at the DRAM speed. Since your RAM is DDR3 (Double Data Rate) you have to double that number. Cpuz should really explain this since I see this question all the time.


So i guess my RAM memory it s fine and it s working on it's normal speed on 1333 Mhz,am i right ,while the CPU-Z's
show 667 Mhz right,so i have 8 GB's of DDR3 RAM Memory , 2 x 4 GB.s Dual Channel..
So i guess everything it's fine with the RAM memory's speed right or ?

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January 23, 2014 9:56:08 AM

Novuake said:
DDR = Double Data Rate.

So 667 x 2 = 1334Mhz


so everything it s normal then the PC is reading the 1333 mhz right,and is it better to have 2 x 4 GB's or RAM memory on Dual Channels or 1 Plate of one plate of 8 Gb, which is delivers beeter sppped and quality and working space of the ram 2 x 4 gb dual cahnnlels or 8 gb channel 8 gb plate

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January 23, 2014 11:07:41 AM

Vana Ivan Pandovski said:
Novuake said:
DDR = Double Data Rate.

So 667 x 2 = 1334Mhz


so everything it s normal then the PC is reading the 1333 mhz right,and is it better to have 2 x 4 GB's or RAM memory on Dual Channels or 1 Plate of one plate of 8 Gb, which is delivers beeter sppped and quality and working space of the ram 2 x 4 gb dual cahnnlels or 8 gb channel 8 gb plate



I think I understand what you mean but its better to run 2 sticks in dual channel that make up 8gb vs running 1 8gb stick in a channel since that will only be running in single channel mode
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