The difference between SDRAM and DDRRAM?

  • Thread starter Naoki
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Naoki

Naoki

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My brother took my computer trying to see if he could fix some problems I was having (he is a computer whiz). So, he got everything working perfectly and then something happened (I forgot) so he had to update the BIOS. When he did that, he fried my motherboard. :grumpy: So now he has to buy me a new mobo. I asked him to buy me some more RAM so I would have 512 MB because I am getting a Geforce Ti 4200 128MB for my birthday. He said he would but he would have to get a different mobo for me because the mobo he was going to buy for me has 4 PCI slots but 2 were for SDRAM and the other 2 were for DDRRAM. I already have 256MB of SDRAM but he said that it would be better to upgrade to one, 512 MB (or two sticks of 256 DDRRAM) stick of DDRRAM. My question(s) is (are) Why is DDRRAM is better than SDRAM, and why can't you have SDRAM and DDRRAM in the same computer at the same time?
 
Originally posted by Naoki
My brother took my computer trying to see if he could fix some problems I was having (he is a computer whiz). So, he got everything working perfectly and then something happened (I forgot) so he had to update the BIOS. When he did that, he fried my motherboard. :grumpy: So now he has to buy me a new mobo. I asked him to buy me some more RAM so I would have 512 MB because I am getting a Geforce Ti 4200 128MB for my birthday. He said he would but he would have to get a different mobo for me because the mobo he was going to buy for me has 4 PCI slots but 2 were for SDRAM and the other 2 were for DDRRAM. I already have 256MB of SDRAM but he said that it would be better to upgrade to one, 512 MB (or two sticks of 256 DDRRAM) stick of DDRRAM. My question(s) is (are) Why is DDRRAM is better than SDRAM, and why can't you have SDRAM and DDRRAM in the same computer at the same time?
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What.
 
Originally posted by under18carbon
DDR's are definitely much better choice. You're lucky to have a powerhouse PC over there! ;)
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Not quite a powerhouse :P I'm a little lacking in the processor area with a measly 1.2 GHZ.
 
Originally posted by Sage
Yup... Double Data Rate. :)
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SDRAM = Synchronous Direct Random Access Memory: detects voltage from clock, and can read AND write to memory in a single clock pulse.
DDRRAM = Double Data Rate RAM, detects change in voltage from clock, and can therefore read and write data to/from memory as the clock changes from 0 to 3.3v and then again on the change from 3.3v to 0. This is how the data rate is doubled for equivalent clock speed.
 
You know Giles, you're the one who makes the world go 'round when it comes to Computer stuff... maybe everybody should just PM their questions to you. :D

(That's what you get for seconding that Summer Kamp Counselor thingie! :P)
 
Originally posted by Sage
You know Giles, you're the one who makes the world go 'round when it comes to Computer stuff... maybe everybody should just PM their questions to you. :D

(That's what you get for seconding that Summer Kamp Counselor thingie! :P)
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Well they could, but then only they would get the benefit of my wisdom. Out here, it's in the open.

Oh and I'll definitely take the "unofficial helpdesk" role if it means I get to avoid some of the stuff you've been getting recently! :P
 
Originally posted by GilesGuthrie
Oh and I'll definitely take the "unofficial helpdesk" role if it means I get to avoid some of the stuff you've been getting recently! :P
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:lol: Good call.
 
The reason you can't have both DDR and SDR is because the m/b won't support it.

If it will, it's older and not a lot of people go that path.
 

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