Gddr4

[rwolf]

Anyone know when we are going to see GDDR4?

http://www.xbitlabs.com/news/memory/display/20060214062714.html

It should be going production this month.

 

[CJ]

On graphicscards we'll probably see it first on RV560 or RV570. So within 6 months.

 

[Dave Baumann]

I'd be surprised if you saw it there first, given that this level of board lands very much in the "cost consious" range and brand new, high speed memories don't exactly yell "cheap"!

 

[maaoouud]

G80 rumours

R590 - Will we see this beast?

My guess is this summer and on either a quick board refresh of R580 just replacing the memory chips or together with the rumoured R590 shrink. If ATI don't seize the opportunity then it'll be on the G80 and probably launched in time to give them an edge in the back to school sales.

I think Hynix is already in massproduction of GDDR4.

 

[ANova]

ATI doesn't need the R590.

 

[no-X]

Yes, ATi doesn't need "faster R580", but R590 would be also cheaper and smaller.

 

[kemosabe]

I thought the consensus was that R590 = X1900XL (80nm?) in which case ATI would certainly need it to better compete with 7900GT.

 

[ANova]

I thought the consensus was that R590 = X1900XL (80nm?) in which case ATI would certainly need it to better compete with 7900GT.

Not if they have a large supply of R520s.

 

[Geo]

I can't entirely decide if I'm taking the 256-bit rumor re RV570 seriously, but if I did you'd think one thing it'd mean is more mid-rangy speed memory rather than tippy-top memory.

 

[kemosabe]

Not if they have a large supply of R520s.

Possibly, but then it won't be called X1900XL if it's not based on R580. They might just go with X1800XT 256MB at $300, but you'd think that X1800GTO is going to sell more than well enough to eat through those R520 cores.

 

[no-X]

I can't entirely decide if I'm taking the 256-bit rumor re RV570 seriously, but if I did you'd think one thing it'd mean is more mid-rangy speed memory rather than tippy-top memory.

RV560 = 8-1-3-1/2 @128bit?
RV570 = 8-1-3-1/2 @256bit? or 12-1-3-1/2@256bit?

 

[Geo]

RV560 = 8-1-3-1/2 @128bit?
RV570 = 8-1-3-1/2 @256bit? or 12-1-3-1/2@256bit?

Ellifino. If there's a substantive difference like 256-bit between RV560 & RV570, I'd lean more towards RV560 being a straight shrink of RV530. For a midrange part at reasonable prices <$200, would you want to put the speed of memory on it that it'd take to feed your RV560 config?

They've talked about 4 segments. Could be the old "midrange" is being broken into lower/upper range to make that happen and thus RV560/RV570. But that is purely speculative --hasn't firmed up enuf in the hintage for me to stand by it yet. Let's see what ATI's lineup and associated price points look like around July. Hopefully they'll have worked R520 parts out of the system by then and we'll get a relatively "pure" look at the lineup without the "odds & sods" parts muddying the picture.

 

[Jawed]

Hmm, I thought this was straightened out now:

• RV515-90nm + RV505/506 80nm 4-1-1-1 64/128-bit (I think 64-bit is an option)
• RV530-90nm + RV535 80nm 4-1-3-2 128-bit
• RV560 80nm 8-1-3-2 128-bit
• RV570 80nm 12-1-3-2 256-bit
• R520 90nm 16-1-1-1 256-bit
• R580 90nm + R590 80nm 16-1-3-1 256-bit

ATI will eventually have a 5-die range, everything above listed as 80nm will be concurrent.

Well, that's my understanding.

Jawed

 

[Geo]

12-1-3-2? For a separate asic? Where did you get that?

 

[Jawed]

B3D forums, where else?

http://www.beyond3d.com/forum/showpost.php?p=715886&postcount=145http://www.beyond3d.com/forum/showpost.php?p=715890&postcount=145
http://www.beyond3d.com/forum/showpost.php?p=715890&postcount=146

Jawed

 

[CJ]

I'd be surprised if you saw it there first, given that this level of board lands very much in the "cost consious" range and brand new, high speed memories don't exactly yell "cheap"!

I agree. At the time of posting I wasn't sure wether or not the RV570 would have a 128-bit or 256-bit memory interface. All signs currently point to a 256-bit memory interface, so there's no need to use expensive high speed GDDR4 since it will have a massive amount of bandwidth anyway even if it uses the 'cheaper' GDDR3.

 

[trumphsiao]

Hmm, I thought this was straightened out now:

• RV515-90nm + RV505/506 80nm 4-1-1-1 64/128-bit (I think 64-bit is an option)
• RV530-90nm + RV535 80nm 4-1-3-2 128-bit
• RV560 80nm 8-1-3-2 128-bit
• RV570 80nm 12-1-3-2 256-bit
• R520 90nm 16-1-1-1 256-bit
• R580 90nm + R590 80nm 16-1-3-1 256-bit

ATI will eventually have a 5-die range, everything above listed as 80nm will be concurrent.

Well, that's my understanding.

Jawed

In a forseeable future, with a huge number of 5 different Dies stockpiled in ATI inventory .I think the previous history will happen again, which is what I'm worrying for.

PS: I heard numerous X800/X850s for now is far cheaper than you ever imagine

 

[trumphsiao]

Is there anyone make a try for X1900XT/XL/XTX using Rivaturner with 3 Quad PS disabled ?

 

[trumphsiao]

I agree. At the time of posting I wasn't sure wether or not the RV570 would have a 128-bit or 256-bit memory interface. All signs currently point to a 256-bit memory interface, so there's no need to use expensive high speed GDDR4 since it will have a massive amount of bandwidth anyway even if it uses the 'cheaper' GDDR3.

512Mb GDDR4
Pro:
Faster and better transfer bit rate
Con :
Expensive and hard to have better availability

512Mb GDDR3
Pro :Better price premium due to either X360 or PS3 required configuration
Con: just a memory speed concern