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[TH] Micron Announces its First DDR4 Module, Production in Q4 - Page 3  

post #21 of 30
Quote:
Originally Posted by Homeles View Post

What's the benefit of going point-to-point? Is this going to better support stacked ICs?
I was thinking Broadwell could be DDR4 only. It'll likely be a new socket/new motherboard design because of the system on a package design.
450mm wafer, 14nm and DDR4 would be a lot of state of the art tech on one platform. Maybe I'm just dreaming.

DDR4 ditches away channel thing from previous DDR family and uses point to point connection. That is every RAM stick represents a channel. So four RAM sticks = quad channel memory.

Boradwell is confirmed to use LGA1150 as well. Now it may break backward compatibility since Broadwell is supposed to have SoC design for desktop, though doubtful at this point. Intel could include DDR4 controller in addition to DDR3 controller at Broadwell (like AM3).
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post #22 of 30
Quote:
Originally Posted by i7Stealth1366 View Post

Like we need DDR4

The GPU's inside APU would greatly appreciate the extra bandwidth wink.gif
post #23 of 30
Quote:
Originally Posted by Homeles View Post

What's the benefit of going point-to-point? Is this going to better support stacked ICs?
Note that point-to-point has not been finalized in specs as of yet.


Point-to-point means dedicated links and less inter-dependencies associated with a bus. This allows for higher clock speeds by reducing the sources of skew/noise.


PCI bus -> PCIe point-to-point
IDE bus -> SATA point-to-point
USB 2.0 bus -> USB 3.0 point-to-point

Quote:
Originally Posted by trumpet-205 View Post

That is every RAM stick represents a channel. So four RAM sticks = quad channel memory.
Yes, 4 DIMMS = 4 channels.... however, it may not mean quad-channel which represents a 256-bit memory word. That depends on what the controller does with the 4 channels... does it aggregate them?
Edited by DuckieHo - 5/8/12 at 10:27am
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post #24 of 30
The Haswell extreme socket and Broadwell will probably have this; if not that would be kinda weird since Samsung and now Micron are pushing DDR4 to come out in 2013.
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post #25 of 30
Quote:
Originally Posted by DoktorCreepy View Post

The Haswell extreme socket and Broadwell will probably have this; if not that would be kinda weird since Samsung and now Micron are pushing DDR4 to come out in 2013.

They are pushing it because they are not making profits from DDR3.
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post #26 of 30
On a related note, I'm interested in what kind of performance increase we can see from this... also, how much APUs would benefit.
post #27 of 30
Quote:
Originally Posted by crust_cheese View Post

On a related note, I'm interested in what kind of performance increase we can see from this... also, how much APUs would benefit.


It will make good gains for servers.
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post #28 of 30
And here I am still using DDR2 tongue.gif
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post #29 of 30
mooooooooooooar DDR3 pricedrops !!!!! please? biggrin.gif
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post #30 of 30
Quote:
Originally Posted by trumpet-205 View Post

Curious though, what CPU will be using it? Haswell and Broadwell will be using DDR3, same as Piledriver.

That leaves Skylake (2015) and Streamroller (2014).

You WILL see it on the server market first. Probably with broadwell on a special type of chip and socket.
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