DDR3 faster and more energy efficient than DDR2

[gOJDO]

http://www.hkepc.com/bbs/itnews.php?tid=687974&starttime=0&endtime=0

DDR3 has a better Bandwitdh per watt. Comparing to DDR2-800, DDR3-800/1067/1333 use only 72%, 83%, and 95% of power. DDR3 is more power saving at the same time it enhanced the bandwidth.

Taking DDR3-1066 (7-7-7), DDR3-1333 (8-8-8), and DDR3-1600 (9-9-9) as examples, we need to count the clock speed in order to calculate the CAS Latency, and the results are 13.125ns, 12ns, and 11.25ns. They get 25% faster.

Also, people are allready playing with DDR3.

 

[dasickninja]

Beutiful and all but, how much will it cost me?

 

[gOJDO]

According to a report concerning DDR3 Volume & Pricing Forecast relative to DDR2 from iSuppli, DDR3 would only share 10% of the market in 2007 where its price is 50%higher than DDR2. In 2008, it’s better. DDR3 would rise to 25% of the market share and its price would drop to a similar price of DDR2. Finally, DDR3 is expected to be the main technology in 2009.

http://www.hkepc.com/bbs/itnews.php?tid=687974&starttime=0&endtime=0

 

[dasickninja]

Thanks for that. Now I know where to allocate some of my budget to.

 

[gOJDO]

IMO it is too early to think about DDR3 now. Next year, might be a different story.

 

[TSIMonster]

Did you guys notice the ULTRA High latenceys... Seems like with every step forward, they take a step back . . .

 

[dasickninja]

You could say the same about PCIe 2.0 since the PCIe bus isn't even being used to its full capacity right now, but yeah, I'll agree that it's still a long way off from becoming mainstream.

 

[gOJDO]

Did you guys notice the ULTRA High latenceys... Seems like with every step forward, they take a step back . . .

Why don't you read the whole article before you make a wrong conclusion?
The real time latency will be reduced compared to DDR2.
Pay attention on this part:

Regarding with the CAS Latency, Kim Gyou Joong, Senior Engineer, Samsung Electronics Corporation, said all of the DDR2-533 (CL 4-4-4), DDR2-667 (CL 5-5-5) and DDR2-800 (CL6-6-6) have 15ns latency according to JEDEC. CAS Latency (CL) is the time (in number of clock cycles) that elapses after the memory controller sends a request to read a memory location and before the data is sent to the module's output pins. As CAS Latency only specifies the delay between the request and the first bit, the clock speed specifies the latency between bits. Thus, when reading bursts of data, a higher clock speed can be faster in practice, even with a worse CAS Latency.

Taking DDR3-1066 (7-7-7), DDR3-1333 (8-8-8), and DDR3-1600 (9-9-9) as examples, we need to count the clock speed in order to calculate the CAS Latency, and the results are 13.125ns, 12ns, and 11.25ns. They get 25% faster. So we should bear in mind that CAS Latency is not related to CL only, but also the clock speed.

 

[gOJDO]

More about DDR3:
http://www.cpuid.com/index.php

 

[TSIMonster]

My bad.... I'm lazy

 

[dasickninja]

Seven Deadly Sins
* Lust
* Gluttony
* Greed / Avarice
* Sloth / Laziness
* Wrath
* Envy
* Pride

 

[shinigamiX]

Since when was cost ever an issue for you? :tongue:

 

[dasickninja]

Never been 8)
Hey, I can't blow all my money, even if I can afford to take the hit. Good money skill are important to develop.

 

[dasickninja]

One, check who you reply to.
Two, its as valid information as posting AMD's market share
Three, sod off.

 

[Dahak]

Very nice indeed.But I guess price does play a role in most everyday purchases,so ya,how much will it cost???Any ideals???TY for posting this info anyways.Nice to see what's up and coming.Goodluck.

Dahak

AMD X2-4400+@2.4 S-939
EVGA NF4 SLI MB
2X7800GT IN SLI
2X1GIG DDR IN DC MODE
WD300GIG HD
EXTREME 19IN.MONITOR 1280X1024
ACE 520WATT PSU
COOLERMASTER MINI R120

 

[dasickninja]

Apparently you are not smart enough to read the sod off notice.
By the way using "????" "!!!!" qualifies at 1337, so be ready for the flames appropriate to such actions.

Telling people DDR3 is faster than DDR2 is going to affect market share??
If anyone didnt already know that, they need a head check.

And you hordesters posting things such as, "AMD not to backdown" is any more worthy of being in this section?
Once again, sod off.

 

[Mephistopheles]

Aaah yes, but as the DDR2 process matures, we're getting 1Ghz DDR2 with CL 5-5-5 timings instead of 800Mhz DDR2 with CL 6-6-6 timings. And that's not even counting the newest Corsair Dominator series @ 1.1Ghz and ridiculous CL 4-4-4 timings.

So the problem with latencies is that the mature, older process will probably always beat the newest process. It was that way with DDR1 -> DDR2 and this seems to be repeating itself.

It's funny that integrating the memory controllers directly opposes the problem that DDRx transitions cause. IMCs reduce latencies, while DDRx transitions aren't good for overall latencies...

 

[qcmadness]

Aaah yes, but as the DDR2 process matures, we're getting 1Ghz DDR2 with CL 5-5-5 timings instead of 800Mhz DDR2 with CL 6-6-6 timings. And that's not even counting the newest Corsair Dominator series @ 1.1Ghz and ridiculous CL 4-4-4 timings.

So the problem with latencies is that the mature, older process will probably always beat the newest process. It was that way with DDR1 -> DDR2 and this seems to be repeating itself.

It's funny that integrating the memory controllers directly opposes the problem that DDRx transitions cause. IMCs reduce latencies, while DDRx transitions aren't good for overall latencies...

Agree

 

[ElMoIsEviL]

Did you guys notice the ULTRA High latenceys... Seems like with every step forward, they take a step back . . .

Why don't you read the whole article before you make a wrong conclusion?
The real time latency will be reduced compared to DDR2.
Pay attention on this part:

Regarding with the CAS Latency, Kim Gyou Joong, Senior Engineer, Samsung Electronics Corporation, said all of the DDR2-533 (CL 4-4-4), DDR2-667 (CL 5-5-5) and DDR2-800 (CL6-6-6) have 15ns latency according to JEDEC. CAS Latency (CL) is the time (in number of clock cycles) that elapses after the memory controller sends a request to read a memory location and before the data is sent to the module's output pins. As CAS Latency only specifies the delay between the request and the first bit, the clock speed specifies the latency between bits. Thus, when reading bursts of data, a higher clock speed can be faster in practice, even with a worse CAS Latency.

Taking DDR3-1066 (7-7-7), DDR3-1333 (8-8-8), and DDR3-1600 (9-9-9) as examples, we need to count the clock speed in order to calculate the CAS Latency, and the results are 13.125ns, 12ns, and 11.25ns. They get 25% faster. So we should bear in mind that CAS Latency is not related to CL only, but also the clock speed.

He's trying to sell you the DDR-3. lol.

DDR-3 does have higher latency but since it's clock speeds are higher, it make up for it as he stated in this line...
Each step forward we take more latency is added but higher clocks are achievable to make up for it.

It's the same with GDDR2 vs GDDR3 on graphics cards.

 

[zarooch]

Will DDR3 use the same socket as DDR2?

 

[Guest]

Most likely not, haven't reasearched but it will use less voltage so there would probably be some 'frying' involved if running at DDR2 voltage.

Thats why they probably will key it differently

 

[zarooch]

Most likely not, haven't reasearched but it will use less voltage so there would probably be some 'frying' involved if running at DDR2 voltage.

Thats why they probably will key it differently

well, after I asked the question I did some research and got the results, So Yes Intel's Bearlake chipest will support both DDR2 as well as DDR3. But now my question is HOW? as beacuase DDR3 uses less voltage as in OP post's link. Below are two links from which I got the information.

1. Intel "Bearlake" Plans Unveiled
2. Bearlake Info From HKEPC

 

[BaronMatrix]

According to a report concerning DDR3 Volume & Pricing Forecast relative to DDR2 from iSuppli, DDR3 would only share 10% of the market in 2007 where its price is 50%higher than DDR2. In 2008, it’s better. DDR3 would rise to 25% of the market share and its price would drop to a similar price of DDR2. Finally, DDR3 is expected to be the main technology in 2009.

http://www.hkepc.com/bbs/itnews.php?tid=687974&starttime=0&endtime=0

Hopefully they won't intro DDR4 before 2009. This changing RAM all the time is worse then changing sockets. It looks at least like we won't have the real drop in latency like DDR-DDR2.

They (price fixing DRAM manuf) need to just stick with this and make it better rather than jumping to a new one before this becomes mature. I mean it's not like they get a cut of mobo sales everytime someone has to replace one for new RAM....is it?

I know there is GDDR4 now in GPUs (X1950)

 

[dasickninja]

GDDR and DDR are very, very different.

 

[1Tanker]

DDR3 faster and more energy efficient than DDR2

Wow, that should win the most intelligent quote of the day!!!!! You my friend are really on top of things letting us know such important information.

Wow Im going to go waaaaaaaay out on a limb here and predict that DDR4 will be even faster and more efficient than DDR3!!!!!! I could be wrong :roll: :roll: 8O :lol:We all pray the limb breaks.