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[EXP] Samsung Announce First DDR4 RAM - Page 3

post #21 of 104
Quote:
Originally Posted by Born4TheSky;11886179 
release date? Would be nice to have all new toys when ivy bridge will come out.
DDR4 won't be out for Ivy Bridge.
Quote:
Originally Posted by lifes_good;11886386 
You know when DDR3 was released I thought, great! Now I'll get higher speeds and unfortunately high latency. All that time I thought, "If DDR4 is released in 2011, I will cry". But to be fair I'm glad, it's a really neat piece of technology, low voltage but high clock speed.
Don't forget the 9-9-9-12 values are timings and NOT latency. Latency is a function of timings and frequency.
Quote:
Originally Posted by EvanPitts;11886343 
The logic doesn't fit the reality. In digital switching circuits, transistors dissipate most of the heat when the transistor is in the transition between off and on. Higher clock rates ensure that the transistors are in analog mode for a greater duty cycle of time, because the on and off states are proportionally shorter.

However, a smaller transistor will be able to switch faster, will be able to attain completely on and completely off, meaning that the "analog" mode time is proportionally shorter. Smaller transistors will also require less power to be injected into the gate, meaning lower power, and hence, lower heat development within the device.

Smaller transistors have lead to much less case dissipation - even though they have been placing many, many more circuits onto a device - from multiple cores, to large caches, to large 64 and 80 bit registers, and so on. Each iteration of device development has brought about less power, while adding "more". Like a Athlon II, that will dissipate 65 W in the current generation, 95 W in the previous generation - compared to older Athlons that were more like 120-140 W devices but without multiple cores, and lacking all of the cache that the most modern iteration features.
Smaller processes, more leakage though.
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post #22 of 104
Quote:
Originally Posted by EvanPitts;11886343 
The logic doesn't fit the reality. In digital switching circuits, transistors dissipate most of the heat when the transistor is in the transition between off and on. Higher clock rates ensure that the transistors are in analog mode for a greater duty cycle of time, because the on and off states are proportionally shorter.

However, a smaller transistor will be able to switch faster, will be able to attain completely on and completely off, meaning that the "analog" mode time is proportionally shorter. Smaller transistors will also require less power to be injected into the gate, meaning lower power, and hence, lower heat development within the device.

Smaller transistors have lead to much less case dissipation - even though they have been placing many, many more circuits onto a device - from multiple cores, to large caches, to large 64 and 80 bit registers, and so on. Each iteration of device development has brought about less power, while adding "more". Like a Athlon II, that will dissipate 65 W in the current generation, 95 W in the previous generation - compared to older Athlons that were more like 120-140 W devices but without multiple cores, and lacking all of the cache that the most modern iteration features.

Eh, still doesn't change the fact that 100c on an older 45nm chip will be fine(though pushing the limit), while it would fry a 18nm chip in quick fashion most likely. That was what I was saying, I know those smaller chips will not put out near as much heat, but if we OC them enough and put the juice required to get that high into them, it will fry them even if the temps are what we would consider fine today. Heat is still going to be a big issue is all I was trying to get across.
post #23 of 104
Hexa-channel DDR4 cool.gif
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post #24 of 104
I love it, clock speeds go up, voltages go down. I'd like to see low voltage models that are around 1-1.1v :3 Time to read up on DDR4! smile.gif
    
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post #25 of 104
Quote:
Originally Posted by staryoshi;11886509 
I love it, clock speeds go up, voltages go down. I'd like to see low voltage models that are around 1-1.1v :3 Time to read up on DDR4! smile.gif

Thats going to be fun to condition... having done power supplies for about 2 years now, the ripple restrictions on the power needed and the voltage level will be hard. if it gets that low, you will be seeing a lot more board space being taken up for power conditioning.

Memory might even need its own power circuit like some of the crazy MSI Lightning GPU's have... a 4+1 or 6+1 type of power for just the memory...
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post #26 of 104
Anybody saw the timings on that module? Says 13-11-12. Very bad but i'm sure they improve timings in time. I remember first DDR3 800Mhz also had ridiculous timings but now we have 2133MHz modules with 9-9-9-27 timings.
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post #27 of 104
Nice. DDR4 is coming and it's shaping up to be slightly green and slightly more power efficient when it comes to voltages. Still a long way to go, but by then technology has progress farther than we expected.
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post #28 of 104
Quote:
Originally Posted by Open1Your1Eyes0;11885528 
Source
lol well...only 4 years ahead of schedule. Go Samsung...now get the JEDEC to say we can have DDR4 before 2015.
Edited by KamuiRSX - 1/4/11 at 9:25am
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post #29 of 104
Quote:
Originally Posted by Diabolical999;11886499 
Hexa-channel DDR4 cool.gif
Which would provide very little benefit....
Quote:
Originally Posted by Magus2727;11886552 
Thats going to be fun to condition... having done power supplies for about 2 years now, the ripple restrictions on the power needed and the voltage level will be hard. if it gets that low, you will be seeing a lot more board space being taken up for power conditioning.

Memory might even need its own power circuit like some of the crazy MSI Lightning GPU's have... a 4+1 or 6+1 type of power for just the memory...
Memory will be needing less than 3w per GB and it is a steady voltage. You don't need adaptive voltage for power savings.

Therefore, you don't need that advance PWM for RAM.
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post #30 of 104
I wonder what platform and CPU they're using to test, plug in these modules... Certainly no motherboard or chipset supports DDR4 today. Maybe Intel supplied ES board and CPU for Samsung?
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