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ddr2 vs ddr 3

post #1 of 27
1/10/09 at 7:01am
Thread Starter 
Speaking of the future, many would go for ddr3.It offers 1066/1333/1667mhz.on the other hand,ddr2 can run at 667/800/1066mhz.just double up the memory,about 1gb to 2gb or even 3 or 4..Buying 2x2gb memory could save you money rather than buying a 2gb ddr3.

ddr3 pros: for the future,you wont have to upgrade
runs faster in the future since they will have 1x2gb then u may double it.

cons: expensive now
at this time, companies may not have mastered their ddr3 product and is better than ddr2 a few percent only.
you will have to buy expensive motherboard.

ddr2 pros: inexpensive!fast
cons: runs slightly slower than ddr3 but JUST SLIGHTly. overall, it runs extremely well since today, companies have mastered their products and have received comments.therefore they know what to do and what to improve.
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post #2 of 27
1/10/09 at 7:47pm
The advantage of course of DDR3 is that the frequencies are higher. However, the timings of the DDR3 RAM are likely higher than the DDR2 RAM. Hence, the performance difference for now and the forseeable future is negligible.
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post #3 of 27
1/18/09 at 3:02pm
If you're buying a notebook upgradeability is irrelevant since you're not going to migrate your old RAM to your new notebook. As long as there is 4GB RAM that's all 99.9% of people will need in their current notebook regardless of the type of RAM. If you have less than 4GB one could argue that DDR2 is the better option for upgrading since it's cheaper to purchase. In fact I just ordered 2GB of DDR2-800 notebook memory online for less than $45 shipped.

Memory bandwidth is more important in some application than others but the difference won't be that much regardless. Relative CPU speed and L2 cache is much more important.

The main advantage DDR3 offers over DDR2 in current notebooks is that it runs at lower power and is more efficient. Efficiency is always important in notebooks due to battery life and heat issues. Still, the difference is not huge and other factors such as cost and the other features of the notebook should take precedence when making a purchasing decision.
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post #4 of 27
1/21/09 at 8:42am
DDR3 and up is typically only in the REAL world, better for video cards and things that need fast timings, fast frequencies and good memory that can take the heat. I don't see a point to DDR3 capable mobos for system ram...well not yet.
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post #5 of 27
1/21/09 at 3:44pm
Quote:
Originally Posted by matchbox2022 View Post
DDR3 and up is typically only in the REAL world, better for video cards and things that need fast timings, fast frequencies and good memory that can take the heat. I don't see a point to DDR3 capable mobos for system ram...well not yet.
Video cards use GDDR3, not DDR3, the difference between them being that you can read and write to video RAM simultaneously, but you can't read and write simultaneously with system RAM.
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post #6 of 27
1/23/09 at 11:04am
Quote:
Originally Posted by Djembe View Post
Video cards use GDDR3, not DDR3, the difference between them being that you can read and write to video RAM simultaneously, but you can't read and write simultaneously with system RAM.
They are definitely different but in principle they serve the same purpose of allowing higher frequencies so his point is still kind of valid I suppose. There was a push to use GDDR as the main memory at one point. Don't know how that's going now.
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post #7 of 27
1/23/09 at 8:47pm
Yeah I know GDDR3 is video memory man and that it reads and writes and can actually operate at higher temps without issues.

I was just reinforcing the point that DDR3 is better for high preformance, and not so much for other things. Hell 'G'DDR2 isn't as good as GDDR3 which helps to prove the point it's better for systems that need the fast bandwidth and accessibility it offers.
Thanks dude
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post #8 of 27
3/24/09 at 2:30pm
When is Dell coming out with a DDR3 Laptop? Fujitsu already has one...

http://www.provantage.com/fujitsu-fp...1~7FUJ90QU.htm
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post #9 of 27
3/24/09 at 9:59pm
Dell has already been selling the M6400 for ages. I don't know of any other laptops but I mostly keep up with 17" screen laptops.
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post #10 of 27
3/25/09 at 9:50am
You're right! I'm surprised that DDR3 memory hasn't filtered down to the XPS series and the cheaper laptops. Does the laptop need to be on the bigger side to support DDR3?

Dell M6400:
http://www.dell.com/content/products...en&s=bsd&cs=04
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post #11 of 27
3/25/09 at 11:46am
DDR3 is 204-pin instead of 200-pin but I'm not sure how much the actual module size has increased. Still though, its certainly small enough to fit in 12 inchers and such.
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post #12 of 27
4/3/09 at 9:55am
Quote:
Originally Posted by gilwood View Post
You're right! I'm surprised that DDR3 memory hasn't filtered down to the XPS series and the cheaper laptops. Does the laptop need to be on the bigger side to support DDR3?
I posted on the other thread you started about DDR3 vs DDR2. Don't worry about it. This should be the last thing you consider when shopping for a notebook. You've got this into your head that it's important to get a notebook with DDR3. It makes no difference from a user perspective. Current Intel mobile chipsets work just as well with either DDR2 or DDR3. This doesn't mean they're interchangeable but it won't affect your experience.
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post #13 of 27
4/10/09 at 2:33pm
Quote:
Originally Posted by gilwood View Post
When is Dell coming out with a DDR3 Laptop? Fujitsu already has one...

http://www.provantage.com/fujitsu-fp...1~7FUJ90QU.htm
dell studio xps 16 has ddr3
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post #14 of 27
4/10/09 at 10:07pm
Ewww. Dell
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post #15 of 27
4/10/09 at 11:19pm
My new lenovo has DDR3, and its not much of a difference, for now at least. It may get better but who knows, its not necessary now.
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post #16 of 27
4/11/09 at 4:48pm
Quote:
Originally Posted by gilwood View Post
You're right! I'm surprised that DDR3 memory hasn't filtered down to the XPS series and the cheaper laptops. Does the laptop need to be on the bigger side to support DDR3?

Dell M6400:
http://www.dell.com/content/products...en&s=bsd&cs=04
It's odd that Dell isn't offering quad core CPU's with DDR3 (and maybe a better GPU) considering Gateway, Toshiba, Acer, Asus are doing so with affordable prices.

Quote:
Originally Posted by matchbox2022 View Post
Ewww. Dell
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post #17 of 27
4/11/09 at 6:04pm
Quote:
Originally Posted by wraithrsw View Post
It's odd that Dell isn't offering quad core CPU's with DDR3 (and maybe a better GPU) considering Gateway, Toshiba, Acer, Asus are doing so with affordable prices.
One possibility on that is that they don't want to overlap market segments with Alienware. Since Dell bought Alienware, it's most likely not going to sell Dell branded notebooks in competing market segments with Alienware branded notebooks anymore. There have been hints about such developments in the past.
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post #18 of 27
4/11/09 at 6:54pm
Quote:
Originally Posted by wraithrsw View Post
It's odd that Dell isn't offering quad core CPU's with DDR3 (and maybe a better GPU)
They are, just not with the XPS series. And yes, I agree with Djembe on the reason.
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post #19 of 27
4/11/09 at 11:11pm
There was also some talk of lower power consumption with DDR3, but I think the real world difference was negligible.
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post #20 of 27
4/12/09 at 2:31am
Quote:
Originally Posted by Djembe View Post
One possibility on that is that they don't want to overlap market segments with Alienware. Since Dell bought Alienware, it's most likely not going to sell Dell branded notebooks in competing market segments with Alienware branded notebooks anymore. There have been hints about such developments in the past.
I'm well aware of that. But they should put some stock in the affordable mobile gaming markets that Gateway, Asus, MSI have generated. Alienwares are expensive and don't offer the same discounts as Dell XPS gaming laptops have had (unless you buy the old m15x from Dell's accessory pages). Even HP has quad cores and ddr3 stocked for their HDX systems. Slap a 4850 and you have a quality do it all system that won't directly compete against it's own Alienware brand, which caters to more hard-core and luxury gaming.
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