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Is 800 Mhz compatible with 1600?

Yzaku Posted messages 31 Status Membre -  
Judge_DT Posted messages 644 Registration date   Status Modérateur Last intervention   -
Hello,
I would like to add more RAM to reach 16 GB but I currently have 8 GB at 800 MHz, and what I plan to get is 1600 MHz, still DDR3. Will both work together or will I have to remove my 800 MHz?

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4 réponses

Réponse 1 / 4
Judge_DT Posted messages 644 Registration date   Status Modérateur Last intervention   10 013
 
Hello,

Knowing that "DDR" stands for "DOUBLE Data Rate", is 800MHz the division by 2 of 1600MHz... 800MHz = 1600MHz, in reality.

So, the sticks will be identical.

--
~ To know how to listen is to possess, besides one's own, the brains of others... said Leonardo da Vinci.
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Yzaku Posted messages 31 Status Membre
 
So if I put the 800 MHz with the 1600, will the 800 not slow down the 1600?
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Judge_DT Posted messages 644 Registration date   Status Modérateur Last intervention   10 013 > Yzaku Posted messages 31 Status Membre
 
The "800MHz" are actually 1600MHz!!!!

So, they won't be throttled, since they are identical in frequency!

800x2 = 1600
1600/2 = 800

So, we indeed have a "double data rate" of 800MHz in and 800MHz out, so it's good, they are really 1600MHz.
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epango Posted messages 37195 Registration date   Status Membre Last intervention   4 270
 
You need to make sure that they are DDR3 and not DDR2.
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Yzaku Posted messages 31 Status Membre
 
Yes, yes, it's DDR3; DDR2 is harder to find these days.
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Réponse 2 / 4
FoxPsycho Posted messages 37 Status Membre
 
I don't really know, it depends on your motherboard if it supports 1600, but in any case, it's better to make sure it's "uniform," so it's either 800 or 1600, I think.
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Yzaku Posted messages 31 Status Membre
 
How can I check if she can handle it?
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Réponse 3 / 4
vieu bison boiteu Posted messages 44334 Registration date   Status Contributeur Last intervention   Ambassadeur 3 591
 
Hi Yzaku

you download >>> CPU-Z <<<
once installed, you will check the RAM you have in the SPD tab, its brand and its reference
you will provide us with this information

see you later
--
no links on English web pages, I already fly enough on my own
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Yzaku Posted messages 31 Status Membre
 
DDr3
4096 Mbytes
PC3-12800 (800 Mhz)
Kingston
9905474-037.A00LF
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Réponse 4 / 4
vieu bison boiteu Posted messages 44334 Registration date   Status Contributeur Last intervention   Ambassadeur 3 591
 
I can't find it for sale anymore
and it's CAS 11
take Corsair if you have four slots

personally, I would get a Kit 2x 8 Go
>> BALLISTIX - Tactical 16 Go 2 x 8 Go DDR3 1600 MHz Cas 8 << = €109.90
--
no link on the English webpage, I'm already stealing enough on my own
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