DDR2 vs. DDR3 Memory

Article by Matthew Becker (5,224 pts ) , published Jun 26, 2009

With so many types of memory available, it’s difficult to tell which is better or even which one is most compatible with your machine. If you’re considering upgrading your computer’s current memory, or just want to know what the difference between the two is, read on.

Not-so-old vs. New

DDR3 MemoryDDR2 (Double Data Rate 2) memory has been available for quite some time. New computers, even computers released within the last three years or so come equipped with DDR2 memory. An improvement over DDR memory, DDR2 produces faster performance with less energy consumption. With the way that DDR memory products are designed, none is backwards or forward compatible with the other. For example, if you have DDR memory, you will not be able to upgrade using DDR2 or DDR3 memory. You can only upgrade DDR memory with other DDR memory.

DDR3 memory is still relatively new, and is the most advanced and up-to-date technology you could put on your computer. It does work faster than DDR2 memory, and even uses less energy to perform at such a high capacity. Because this technology is still fairly recent, you probably won’t find it a lot in new computers. One of the biggest setbacks in regards to DDR3 memory is its entry level price range. The lowest price you’ll find for DDR2 memory is about $18, whereas DDR3 at its cheapest ranges around $85. This comparison is used with a stick of 1GB memory for desktop computers.

Which is the Better Value?

As it currently stands, top-of-the-line DDR2 memory would be a far better investment than an entry-level DDR3 stick of memory. A lot of this has to do with how long DDR2 memory has been around and its overall popularity. DDR3 will eventually come of age, but it is still a bit too early.

In another year, perhaps less, we will see DDR3 memory begin to drop in price, and more and more will be seen in new computers. So, if you’re looking to buy a new computer in the next couple of months, you can consider DDR3 if you’re looking to acquire a cutting-edge gaming or multimedia computer. However, DDR2 is still the industry standard today. So don’t think that by getting DDR2 memory you’re getting obsolete technology.

Remember, if your computer supports DDR2 memory, you can only upgrade with DDR2 memory. Same goes with DDR3 and the original DDR memory.

Comments

Oct 17, 2009 12:32 AM
Yashraj
Comparison on practical basis
Hey thanks, this came in very useful.
Oct 4, 2009 11:44 PM
Thank you
Thank you for your response, BJ. The processing power of DDR3 compared with DDR2 doesn't have the leap that DDR2 had over DDR. That's probably why DDR3 has been rather slow in its appearance in new machines.
Oct 4, 2009 9:47 AM
BJ Duncan
First timer!
Hi, I am a NOOB to this site and found it by doing a google search about the difference between DDR2 and DDR3. I opened a few different responses. I must say that I am very impressed with this very simplified answer that is easy to understand and very well laid out too. One fan visiting more often :-}
Aug 31, 2009 2:44 PM
Answers
Hi Harry and Rachel, thanks for the questions!

Harry:
(Sorry it took so long, just got back from a vacation)

Yup, the GPU memory lives on the graphics card which has its own controller not subject to the RAM needed for you motherboard. It is often called GDDR(number) or Graphics DDR(number) to emphasise this.

Rachel:

Yup they are out there, but they will cost you a pretty penny. That much disk space is great, but that is a lot of RAM, which would only be necessary for some rather uncommon applications.

Thanks again for visiting Brighthub and sharing you questions!
Aug 30, 2009 6:23 PM
Rachael
Laptops
Can a Laptop be configured (64 Bit ) with 16GB of memory and a 600GB HardDrive, or is this false information. Thanks
Aug 14, 2009 3:04 AM
Harry
DDR3 Graphic card
well in case one has a pc with a DDR2 powered RAM,can he use a DDR3 Graphic card to support the graphics??
Jun 19, 2009 6:05 PM
DDR3 Price Drops
DDR3 prices have dropped quite a bit, but they really aren't hitting the speeds we were hoping for :-( Like you said, not much advantage. Also, Platinum is a more expensive line then Gold. Still, you're right, the penalty for going with DDR3 has shrunk, thanks!
Jun 19, 2009 11:05 AM
Will
DDR3 pricing
Not to be contrary for the sake of contrariness, but I just paid ~$130 for 8 gigs of OCZ Gold DDR3 and ~$100 for 8 gigs of OCZ Platinum DDR2...not too much difference there.

But there is still not much in the way of software to take advantage of the DDR3. Either one is cool, I just wanted to mention the price convergence.

Cheers!
 
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