Sunday, August 24th 2008
DDR3 to DDR4 Transition Chalked-out, DDR4 in 2012
The transition between PC memory standards has always relied on changes in PC platforms for effectiveness. For example, the LGA 775 saw transition between two standards, the i915 MCH supported DDR and DDR2 memory, i925 onwards it became mandatory for people to use DDR2 memory as the platform required it. In came DDR3 and it became optional for users to choose it over DDR2. Even now, there is only a gradual transit between DDR2 and DDR3. With Nehalem however, it will become mandatory to use DDR3 memory, both with the LGA 1366 and LGA 1160 socket motherboards in either two or three channel configurations.
Qimonda has already chalked out plans for a smooth transition to DDR4 PC memory. According to Qimonda's development plan, DDR4 would be out by 2012. The memory standard will operate at (DDR) frequencies as high as 2,133 MHz at an approximate voltage of 1.2 V and by 2013, we could be seeing 2,667 MHz memory at 1.0 V, a phase during which there's a transition between the current DDR3 and future DDR4 PC memory standards.
Source:
Hardspell
Qimonda has already chalked out plans for a smooth transition to DDR4 PC memory. According to Qimonda's development plan, DDR4 would be out by 2012. The memory standard will operate at (DDR) frequencies as high as 2,133 MHz at an approximate voltage of 1.2 V and by 2013, we could be seeing 2,667 MHz memory at 1.0 V, a phase during which there's a transition between the current DDR3 and future DDR4 PC memory standards.
36 Comments on DDR3 to DDR4 Transition Chalked-out, DDR4 in 2012
History shows it's capacity growth been exponential. Right now 2~4 GB is the standard for a performance PC. If 3-channel continues, it's 3 , 6, 12 GB blind guess.
I'm not talking about 'standard' as in mainstream/mediocre either :) Standard as in the general trend with performance PCs. Today 2x 1GB or 2x 2GB is the standard, gaming PCs aren't greatly helped by 8 GB as yet. With Bloomfield since it's 3 channels, it's going to be 3x 1GB, 3x 2GB (6 GB total), in the coming years 3x 4 GB (12 GB)....24GB....48GB....so on and so forth.
Do you know how timings work in relation to speed? Its actually not that bad.
Mhz CL ns/cycle total time (ns)
100 2 10 20
133 3 7.5 22.5
333 2.5 3 7.5
400 3 2.5 7.5
800 5 1.25 6.25
As the mhz increases the CL may increase however the actual time it takes still decreases. So even if we're at CL 10 @DDR3 1600 its timing is still as tight as ddr2 with cl5.
I know, but the speeds are practically the same when it's first released (ddr2 was slower than my ddr) b/c the timings suck.
It's not cost effective for a while, I guess is what I'm getting at.
:x
Though, IGPs are gonna love it...
2,133mhz:twitch::twitch::twitch::twitch:
Increase in memory bus width = more connections, wiring, layers. M'goth is right.
Perhaps 128 bit wide single channel isn't as efficient as dual 64 bit wide paths to two modules (?). Besides, 128 bit wide connection to a module would mean more pins, possibly longer memory modules. You can't keep all factors constant, something has to change.
exactly. I see a lot of people still complaining about the high timings on DDR3 compared to DDR2, but everyone seems to conviently forget that DDR3 provides higher bandwidth and speed is therefore moving more information per clock cycle than DDR2 does.
for anyone that wants proof as to DDR3 timings vs latency:
you'll find those results are on par with a lot of DDR2 clocked at lower speeds with tighter timings, and I'm only running upper-mid range sticks . . . not the "super clocker" top-tier sticks on the market.
DDR3 can go much higher, and timings can be tightened down a lot more, but you'll have to start worrying about DRAM cooling, though. There's still a lot of potential with DDR3.
As to the DDR4 . . . nice to know when for sure it'll be coming . . . :D
You do have a Corsair kit that operates at 2133 MHz and is DDR3, the point is DDR4 gets there at lower voltage, providing room for higher clock speeds for the manufacturers to make kits with. 2.66 GHz at 1.0 V sounds great.
wow , looking great , first high performance pc part with low voltage
LoL, sorry no one else had done it yet ; )
I'm suprised they are putting DDR4 that far out. With so much hype with DDR5 on GPUs.