ddr2 pc800 or ddr2 pc667 what's the difference?

[angeloftechno101]

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guys, i need your advice...whats the difference between a pc667 or pc800 memory?

[poldopunk]

frequency...well, you're calling it wrong for starters.

when a memory is labeled pc-5336, the 5336 is denoted as the theoretical bandwidth it is capable of. on the other hand, if it is labeled ddr2-667; 667 is the frequency that the memory frequency it is running on so by calling pc667 and pc800 is politically incorrect.

as to your question, DDR2-667 is running on 667 MHz but "not really" because the real memory frequency is 333 but since this is double-data rate (DDR) which means that in 1 cycle, the memory is capable of delivering twice the data, it gets twice the actual clock its capable of running, hence, 667 (333 x 2). theoretical memory bandwidth is calculated easily, there are 8 bits in a byte so to give the 667 frequency an equivalent value to a byte is to multiply it by 8; 667 * 8 = 5336 or 5.3 GB/s.

i'll leave you the honor of calculating the value for DDR2-800 as a test if you've learned something from this.

[[-erick-]]

waw, nose bleed ko basa sa explanation.

thumbs up.

Kung wala pa ka mems, try to get the higher speed. But if mag mix ka... magstep down ang mems to the lowest speed na naa.

imho wala nako kaayo "mafeel" ang difference sa speed kung normal operation. BUT when overclocking... it does have its use. Lower SuperPI, maxxmem speed is higher

[zoters]

frequency...well, you're calling it wrong for starters.

when a memory is labeled pc-5336, the 5336 is denoted as the theoretical bandwidth it is capable of. on the other hand, if it is labeled ddr2-667; 667 is the frequency that the memory frequency it is running on so by calling pc667 and pc800 is incorrect.

as to your question, DDR2-667 is running on 667 MHz but "not really" because the real memory frequency is 333 but since this is double-data rate (DDR) which means that in 1 cycle, the memory is capable of delivering twice the data, it gets twice the actual clock its capable of running, hence, 667 (333 x 2). theoretical memory bandwidth is calculated easily, there are 8 bits in a byte so to give the 667 frequency an equivalent value to a byte is to multiply it by 8; 667 * 8 = 5336 or 5.3 GB/s.

i'll leave you the honor of calculating the value for DDR2-800 as a test if you've learned something from this.

n.ndota pagka.explain wui...i agree w/ poldopunk
thumbs up to you sir.....

[thermaltake]

frequency...well, you're calling it wrong for starters.

when a memory is labeled pc-5336, the 5336 is denoted as the theoretical bandwidth it is capable of. on the other hand, if it is labeled ddr2-667; 667 is the frequency that the memory frequency it is running on so by calling pc667 and pc800 is incorrect.

as to your question, DDR2-667 is running on 667 MHz but "not really" because the real memory frequency is 333 but since this is double-data rate (DDR) which means that in 1 cycle, the memory is capable of delivering twice the data, it gets twice the actual clock its capable of running, hence, 667 (333 x 2). theoretical memory bandwidth is calculated easily, there are 8 bits in a byte so to give the 667 frequency an equivalent value to a byte is to multiply it by 8; 667 * 8 = 5336 or 5.3 GB/s.

i'll leave you the honor of calculating the value for DDR2-800 as a test if you've learned something from this.

well detailed and explain...nose bleed ko..

[Kibir_Tidibir]

frequency...well, you're calling it wrong for starters.

when a memory is labeled pc-5336, the 5336 is denoted as the theoretical bandwidth it is capable of. on the other hand, if it is labeled ddr2-667; 667 is the frequency that the memory frequency it is running on so by calling pc667 and pc800 is incorrect.

as to your question, DDR2-667 is running on 667 MHz but "not really" because the real memory frequency is 333 but since this is double-data rate (DDR) which means that in 1 cycle, the memory is capable of delivering twice the data, it gets twice the actual clock its capable of running, hence, 667 (333 x 2). theoretical memory bandwidth is calculated easily, there are 8 bits in a byte so to give the 667 frequency an equivalent value to a byte is to multiply it by 8; 667 * 8 = 5336 or 5.3 GB/s.

i'll leave you the honor of calculating the value for DDR2-800 as a test if you've learned something from this.

kung sa facebook pa ni...."like"

[hardtech]

hahahahah korek

[johncess1211]

this helped me a lot.. thanks

[bma_istorya]

bro ang kanang 667 and 800 same rana xa ddr2 pero dili na xa pwede gamiton ug dunga..if naa ka 667 dapat 667 sad imong usa ka memory..ang tendency ana if dili pareha iya mhz dili mo on imong comp..face out naman cguro na ang 667 karun 800 nalang akong nahibaw-an baligya sa interpace tanawa..

[kazki]

Long story short... DDR2 800 is better than DDR2 667.

Just check for compatibility on your Mobo if your planning to get one.