maybe AMD wants to skip DDR2

[oqy77]

Info on complete report: http://www.cooltechzone.com/index.php?option=content&task=view&id=1196


...
The source revealed that AMD could move to the DDR3 standard, assuming it skips DDR2, sometime within the next 12 months. And until AMD stays with DDR, there’s no drop in market share in this area. It will continue to lead as a strong standard.
...


But if it skips DDR2, I prefer AMD go with XDR.
Check its capabilty :

http://www.devhardware.com/c/a/Memory/Hardware-news-XDR/2/

This is where XDR will shine. Currently, the most extreme overclockers combining the top of the line computer parts can push the memory bandwidth to 9.0 GB/sec. Most people won’t be seeing this kind of performance until the end of DDR2 or later. XDR will start at 9.6GB/sec, and the current highest is 16GB/sec with higher on the horizon.

The biggest complaint made about DDR2 is their latency. Latency plays a role in the overall bandwidth. DDR has a latency of roughly 10 ns, while DDR2’s latency is closer to 15ns. This is why DDR beats DDR2 at the same speed. XDR's latency will be lower than that of DDR. It will be available in latencies of 1.25/3.0/2.5/3.33 ns. This will provide an additional advantage over DDR2. The clocks should remain on par with DDR2, but when XDR is clocked to higher speeds the gap will grow further.

damn... XDR is that fast.

[Sentential]

It all depends what the yeilds are like. Intel might go the rambus way again if it proves successful

[[XC] leviathan18]

and the price of the xdr???? i think you didnt have a p4 rambus based system it was nice OK but damn expensive

[oqy77]

i know the price of RDRAM. I have one old system in my office. My rig is a lot faster though..

my main point is, AMD loves low latency memories. And XDR proves it haves high (very high tho') bandwidth but with latencies lower than the current DDR1 . Not like the DDR2, which haves high latency.

[Quanticles]

intel uses ddr2 so amd will

[[XC] leviathan18]

intel used rambus and amd didnt... but i think this time you are right

[madgamer]

quan is right. quoted from anandtech today.

"The other interesting comment from Barry was that he stated AMD will be using DDR2 in a future processor. We had asked if they might simply skip DDR2 altogether and head straight to DDR3, and he said they would not be doing so. His explanation was that DDR2-400 didn't make any sense at all, and while DDR2-533 has some advantages, it's really only at DDR2-667 that performance benefits become useful. How useful? He stated that a 10% performance increase was likely. Whether this was just a guess or if AMD already has DDR2 prototype processors - remember that with the integrated memory controller, AMD will have to create a new version of their chips to support a new memory type like DDR2 - we don't know. We were actually surprised at his response, as we thought DDR3 was close enough that AMD would simply skip a generation. Then again, they might like the idea of allowing Intel users the ability to convert to AMD with the only required purchases being the motherboard and processor. Having a common memory platform certainly isn't bad for consumers."

Barry Crume being AMD's director of product planning for the server/workstation segment

[STEvil]

i've heard as few good things on XDR.. i'm not one to like rambus really, but i'm watching carefully...:D

[[XC] leviathan18]

i think is the best path.... to adopt ddr2... if amd does it i think we will see more enthusiast memories

[Fairydust]

The chances of AMD using XDR are very slim to non existent imho. Rambus is not AMD's Christmas card list. Why would they go with a non Jedec standard, that was designed by Intel's bastard stepchild.

[oqy77]

well.. lets just wait then. but I hate the AMD64 X2 .. damn expensive. Or AMD haves another solution in their sleeves for a low cost X2. according to anandtech, the cheapest one can be found @500 bux... :(

[ozzimark]

The chances of AMD using XDR are very slim to non existent imho.
agreed. amd will never make a risky move like that.. not until they have a lot more market share at least :toast:

[JNav89GT]

lol, damm my avatar was jacked! :O

[[XC] leviathan18]

rambus said that they didnt expect xdr will be adopted in the pc market due to high price and the problems they had

[BLHealthy4life]

isn't XDR being used in one of the consoles? PS3 or xbox360?

XDR is licensed to Samsung and they are producing large quantities of these If i remmeber right....it seems pretty mature.

[[XC] leviathan18]

ps3 and thei said it wont appear in the pc market

[ferrari_freak]

i was wondering, does athlon 64 x2 still use ddr1 only?

[IvanAndreevich]

Yes, since it uses the same socket.

My vote goes to XDR or DDR3. DDR2 - higher latencies, not much higher clocks. DDR3 - higher latencies, but much higher clocks as well.

[[XC] leviathan18]

xdr i doubt appears in the computer market them self said that it would be very rare

[Quanticles]

AMD will have to change sockets to go to DDR2 *cough*

[Napoleonic]

I vote for XDR, maybe they can lower the price? also consider that Sony won't use XDR if they want their PS3 remain cheap, who wants to buy a $1000 console?

[TMM]

intel uses ddr2 so amd will
Thats the stupidest thing i've ever heard :rolleyes:

infact, remember when RAMBUS was around. More people were buying AMD systems with DDR ram, and P4 chipsets that supported DDR were produced, so intel moved to DDR and dumped rambus.
And also, BTX.. that never took off either (it is supposed to right?.. well i don't see any!).

AMD will have to change sockets to go to DDR2 *cough*
derr fred!. Thanks for that useless info

They would have to change again if they did go DDR2 and then went DDR3 later, which is why they (probably) arn't going to change to DDR2!

[[XC] leviathan18]

TTM do you have a crystal ball and see future???? i dont think so

so dont say what quanticles is stupid or useless at least for now the roadmaps says DDR2 for the M2 socket

[$a1Ty]

i hope AMD does skip DDR2, because there is no need for it and it would only benefit intel, if they go straight to DDR3 it would sort of hurt intel just like RDram

[TMM]

TTM do you have a crystal ball and see future????
yes! :D

heh just kidding :p. Im saying how it would be stupid to convert their whole lineup to ddr2 if they are just going to move to ddr3 soon after. I'm not saying they won't release a DDR2 socket, but im saying if they did, then it would be a smart idea to make the socket primarily compatible with DDR3, but have it backwards compatible with DDR2 (i don't know the technical specs of DDR2 and 3, so i can't say if that possible - but it seems logical to me).

[MaxxxRacer]

they arnt skipping ddr2... as much as we would all like them to they are not.

they are working on mobos for it right now for testing and whatnot..

[ferrari_freak]

but ddr2 athlon isnt gonna come out for a long time becasue they would need to switch sockets. that seems really far off since their next processor (athlon 64 X2) has same socket 939 and it isnt even out yet. i dont think they're going to switch sockets for a new processor with ddr2 support only a few months after they just released a processor especially knowing that ddr2 doesnt really have that many benefits to it.

[Quanticles]

probably not this year, but there was another thread with a supposed time for M2 to come out

[[XC] leviathan18]

1q or 2q of 2006 i cant remember it should come (socket M2)

[iboomalot]

my Video card has DDR3 would be sweet having that same speed on my system ram

[[XC] leviathan18]

your gfx card has a 1100mhz in example at what timmings?? 5-5-5-10 or more??? i dont think you want that kind of latencies in your sys

[Stewie007]

DDR3 is gonna build on the strengths of DDR1, and DDR2... The best combination of both. So I don't know what yer thinking...

[dippyskoodlez]

DDR3 is gonna build on the strengths of DDR1, and DDR2... The best combination of both. So I don't know what yer thinking...

I think AMD is gonna adopt DDR500 before it will DDRII... :stick:

[Stewie007]

I never said they were gonna. I said that DDR3 will be superior to DDR and DDR II, and thus it will be more likely that AMD will adopt that.

[[XC] leviathan18]

we can place our bets to see what amd adopts xD , no amd insiders can work :D

[STEvil]

my Video card has DDR3 would be sweet having that same speed on my system ram

Your video card uses GDDR3, not DDR3.

[madgamer]

Hehe, no one read my post earlier? There was an article on anandtech where they interviewed AMD's head of product planning and he flat out said that they were going to ddr2 next. i have the quote on the other page http://www.anandtech.com/tradeshows/showdoc.aspx?i=2403&p=9
theres the link to the article.

[LOE]

How come you all speak for amd - "you think they will skip ddr2" and "you don't think so"

Its really AMD's decision and they officially said there will be DDR2 support. DDR2 might have higher latency, but at high clock speed more cycles might take less time than fewer cycles with twice lower clock speed. Amd processor aren't that memory hungry as intels, and that's why they don't rush like intel. Actually intel did it because they want us to think they are :banana::banana::banana::banana::banana::banana::b anana:s :)

However ddr3 price will be too high. XDR I like...but I don't expect amd to support this standart, thou it will be very nice. But if XDR is not expensive why not... This would knock intel down a bit. Amd did good once with jedec DDR when intel did bad with rambus. This time things may turn, and AMD could rock with XDR and intel to suck with ddr2.

The problem is amd has integrated memory controller. This makes the change of memory type hard, it's not like changing a NB, but changing CPU architecture and even the socket.

Once again amd cpu's don't need so much memory speed, so the factor that decides this matter will be price which depends mostly on availability, so in this case this time next year I guess it will be ddr2. Thou ddr2 adoption depends on amd, if they support something else ddr2 will be as rare as hen's teeth (just like rambus was once)

[STEvil]

Actually I wonder if AMD could put multiple memory controllers on one chip.

By this I mean one DDR controller, and one DDR2 controller. They have a lot of unused pins, even with dualcore, so if they had a bit of die space extra they could probably make a DDR/DDR2 compatable 939 dualcore processor.... maybe.

Of course if they put out a desktop processor that beat intel pretty hard then intel would dump out a high end part in a hurry that did the same, and amd might not have another part near enough to ready to counter. Putting your best part forward as soon as you've got it is not good marketing practice with the way the PC industry operates.

[Nubius]

Sorry if this was posted:

http://www.xbitlabs.com/news/cpu/display/20050430084624.html

That says AMD for sure to use DDR2 :( I was hoping they'd skip it as well honestly.