News: AM2 ES to appear in February

So how much later :stick: Thorry if you seem to know everything :stick: What makes you think it wont be later not sooner :stick:

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But 200ns seems a bit high. Would you happen to have some links to exact number?

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200ns approximate number - read it on fcenter.ru. If you know russian this article will be very interesting read. Haven`t seen any correct data. BTW how do you convert cycles to ns ?

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The reason it was delayed is that the bridge chip on the FBdimms had serious heat/power issues that prevented it from being approved by JEDEC until up to this point.

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Very true indeed. Exnibition samples of FB-DIMMs were cooled by fan.

To me DDR2 seems to be the best option to both desktop and server markets - low price, decent performance, widely available - what else do you want ?

You can't, unless you know the exact frequency.

Otaking71,
But we do know the exact frequency. :)
Err... I guess. :hrhr:

What freq would the AMB run at other than the speed memctrl drives the dimms? Otherwise AMB would need a dedicated clock source.

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Originally Posted by largon

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A source among the memory makers said the FB-DIMMs will have 30-40 cycles access time, which is similar to the RDRAM.

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That's about 40-50ns at DDR800 from AMB alone. Add DDR2 latency on top of that you'd be around 120ns.

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Two things wrong in this quote:
1. DDR800? Socket F is DDR667 just like M2.
2. It clearly says FB-DIMM access latency, not AMB access latency.
-> 2x :slapass: for me.

Anyways, 30-40 cycle FB-DIMM access time in nanoseconds:

30 (cycles) * 1 000 000 000 (ns) / 333 000 000 (1/s)
= 90 ns
(40 cycles = 120 ns)

90 - 120 ns DIMM access latency

What do you say we actually wait till we can obtain Socket F and M2 before we fight over what memory it is going to use... no Sense getting Worked over something that we have no control over

i want to know something


ddr2 and ddr3 they are pin compatible?

one guy from a memory maker (good one) told me AM2 is going to use ddr2

Ermmm....I don`t get that calculation :D

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Originally Posted by leviathan18

AM2 is going to use ddr2

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I think, I also heard this. It might have been from the boys at Xbit, not sure

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Originally Posted by leviathan18

i want to know something


ddr2 and ddr3 they are pin compatible?

one guy from a memory maker (good one) told me AM2 is going to use ddr2

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Going to attempt to clear out the confusion once again. AMD's Socket M will use Unbuffered DDR2. This much I can assure you of.

Socket F will use FBDimm-DDR2 and will transition to FBdimm-DDR3 towards christmas/early 2007. The reason why people are confused is that *all* FBdimms are cross compatible. The *UN*buffered versions are not cross compatible whatsoever.

Socket M will use DDR2 and is incapable of DDR3 because it is not an FBdimm archetecture. Socket F can use both DDR1/2/3/4 because FBdimms are fully buffered and are pin compatible.

Thats really where the confusion is occuring as people do not know a great deal about how FBdimms operate and thus are confusing the two sockets with each other.

For AMD to use DDR3 on desktop while using unbuffered non FBdimms it will require a platform refresh. However since Socket F is an FBdimm design it will not need such thing. This is why AMD is making Socket F as overkill as possible because they intend to use Socket F for atleast 3 years while socket M lasting maybe half that.

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Originally Posted by leviathan18

i want to know something


ddr2 and ddr3 they are pin compatible?

one guy from a memory maker (good one) told me AM2 is going to use ddr2

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Absolutely not.. But I Don't believe M2 is going to be DDR2

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The reason why people are confused is that *all* FBdimms are cross compatible. The *UN*buffered versions are not cross compatible whatsoever.

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AHH, Pinnacle sees the light:toast:

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Originally Posted by nn_step

Absolutely not.. But I Don't believe M2 is going to be DDR2

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Please carefully read what I posed....

If you are still confused read this:
http://www.ocforums.com/showthread.php?t=440042

Socket M2 will use unbuffered DDR2....

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Originally Posted by Sentential

Please carefully read what I posed....

If you are still confused read this:
http://www.ocforums.com/showthread.php?t=440042

Socket M2 will use unbuffered DDR2....

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Dude I have already READ IT
But I DISAGREE :fact:

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Originally Posted by nn_step

Dude I have already READ IT
But I DISAGREE :fact:

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GodDamnit. Im trying to put this together, stop confusing me :mad:
All this disagrement :stick:
I need a reliable source, whoever points me to one gets a BREWSKI on me :toast:

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Originally Posted by Pinnacle

GodDamnit. Im trying to put this together, stop confusing me :mad:
All this disagrement :stick:
I need a reliable source, whoever points me to one gets a BREWSKI on me :toast:

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Its really quite simple.. he's making this out to be far more than it should.

Socket F (Opteron): FBDimm-DDR2 ---> FBDimm-DDR3 (2007)
Socket M (Athlon___) : Unbuffered DDR2 ---> New socket + DDR3 (2007)

You can choose to believe what I say or not. I know what I have here is correct.

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Originally Posted by Sentential

....lol Ok sure. And Im sure you know people who designed the memory controller agrees with you too.

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And I am sure your one of those people :rolleyes:
We in the end will have to wait for the final product before we see who is right and who is wrong

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Originally Posted by nn_step

And I am sure your one of those people :rolleyes:
We in the end will have to wait for the final product before we see who is right and who is wrong

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...lol

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Originally Posted by Sentential

Its really quite simple.. he's making this out to be far more than it should.

Socket F (Opteron): FBDimm-DDR2 ---> FBDimm-DDR3 (2007)
Socket M (Athlon___) : Unbuffered DDR2 ---> New socket + DDR3 (2007)

You can choose to believe what I say or not. I know what I have here is correct unless you can quote a different AMD engineer than the ones I know lol

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Ok, cool.

I wouldn't worry about learning everything about M2 before you can actually buy a M2..

Maybe this post by Tony will shed some light.

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Originally Posted by Tony

I think this will be Oskars last DDr1 board for AMD apart from RD580 which im told will perform just like venus. AM2 is the next huge thing and ddr2 will breed a whole new line of DFI boards im sure.

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http://www.xtremesystems.org/forums/...0&postcount=90

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Originally Posted by Sentential

Its really quite simple.. he's making this out to be far more than it should.

Socket F (Opteron): FBDimm-DDR2 ---> FBDimm-DDR3 (2007)
Socket M (Athlon___) : Unbuffered DDR2 ---> New socket + DDR3 (2007)

You can choose to believe what I say or not. I know what I have here is correct.

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This is along the lines of what I've "heard" as well ;)

if the guys @ the memory maker are correct AM2 is going to use DDR2 for sure.

so who wants to bet on this?????

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Originally Posted by leviathan18

if the guys @ the memory maker are correct AM2 is going to use DDR2 for sure.

so who wants to bet on this?????

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Ok...I bet that AM2 will use DDR2 :D How much are we talking leviathan? :p: lol....

dunno im in the same side so you have to bet with nn step he is the only one with ddr3....

i bet the cookie i won from UnG is new or at least he said that

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Originally Posted by leviathan18

dunno im in the same side so you have to bet with nn step he is the only one with ddr3....

i bet the cookie i won from UnG is new or at least he said that

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Where have you seen UnG around?? Was it recently?