AMD: R7xx Speculation

[Apocros]

Hmm, well, I'm well out of my depth, but, actually that sounds like an interesting idea. Instead of offset-stacking them, would it make sense to build two "chips" -- a compute chip, and an interconnect one, and then stagger/stack them:

...........===.........===
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this isn't such a crazy idea (minus the staggering):

http://www.research.ibm.com/journal/rd/494/knickerbocker.pdf​

of course, it's not the sort of thing that's likely to show up in volume production any time soon...

 

[Megadrive1988]

seems there had to have been a fairly heafty overhaul of R600 to get R700 competitive with G92.
good thing R600 has huge bandwidth for R700 to grow into.

 

[Shtal]

http://www.fudzilla.com/index.php?option=com_content&task=view&id=1028&Itemid=1

(fudzilla.com)We got confirmation that the R700, a chip that is scheduled for the 1H of 2008: Our knowledgeable sources also confirmed that R700 is a multi core design and DAAMIT calls it Multi Core Unified Architecture.

The name R700 was not mentioned anywhere, but has support for DirectX 10.1 API and second-generation UVD on one of the slides. AMD does not want to confirm the actual specs at the moment, but it is certain that this will not be a R600/700 design, but rather something new.

Fusion is set for arrival in 2009, at an unspecified time. We're quite certain this will be summer at the latest, or the end of Q1. µ http://www.the-inquirer.com/?article=42282

Hhmmm....

Where is the truth!

 

[vertex_shader]

Inqurier reporting (or Fud'ing ) r700-r800-r900 development closed already and ATi engineers working on r1000.

 

[Blazkowicz]

What's an RBE?

 

[vertex_shader]

What's an RBE?

Render Back End, otherwise known as a ROP.

 

[turtle]

Inqurier reporting (or Fud'ing ) r700-r800-r900 development closed already and ATi engineers working on r1000.

Just the specs, which isn't really that surprising. R600 was specced out incredibly long before it actually can to fruition, something on the magnitude of 5 years.

It also isn't surprising because R700-R900 are probably incremental improvements on the R600 architecture, be it more of something, double execution of something, high clocks, or just the support for latest spec, which I imagine won't need a drastic change until the next version of windows (and next drastic change to DX).

 

[Shtal]

Just the specs, which isn't really that surprising. R600 was specced out incredibly long before it actually can to fruition, something on the magnitude of 5 years.

It also isn't surprising because R700-R900 are probably incremental improvements on the R600 architecture, be it more of something, double execution of something, high clocks, or just the support for latest spec, which I imagine won't need a drastic change until the next version of windows (and next drastic change to DX).

Somebody correct me if I'm wrong about R600/R700/R800/R900. Is it resembles R300/R420/R520/R580 steps.

And R1000 will resemble ATI R200 into R300.

 

[AlexV]

Somebody correct me if I'm wrong about R600/R700/R800/R900. Is it resembles R300/R420/R520/R580 steps.

And R1000 will resemble ATI R200 into R300.

If you imagine someone actually knows what'll happen that far into the future, you have some imagination. The ammount of growth available to the R6xx platform is yet an unknown, we'll have to wait and see how it scales into the future with the addition of different elements like RBEs and foundry process evolution in order to assess wheter or not it can be a base-platform with as much life in it as the R300 had.

 

[turtle]

If you imagine someone actually knows what'll happen that far into the future, you have some imagination. The ammount of growth available to the R6xx platform is yet an unknown, we'll have to wait and see how it scales into the future with the addition of different elements like RBEs and foundry process evolution in order to assess wheter or not it can be a base-platform with as much life in it as the R300 had.

True enough, just speculation on my part.

 

[vertex_shader]

Some rumor come from Asia (don't forget Geo GPU rule #1, every GPU 6+ months away looks supergreat )

R750XT: 8-core, 64 ROP 256US 1024BIT, 20MB eRAM, using GDDR5 0.5ns 1GB/2GB
R750GT: 6-core, 48 ROP 192US 768BIT, 20MB eRAM, using GDDR5 0.5ns 768MB/1.5GB
R700XT: 4-core, 32 ROP 128US 512BIT, 10MB eRAM, using GDDR4 0.7ns 512MB/1GB
R700GT: 2-core, 16 ROP 64US 256BIT, 10MB eRAM, using GDDR4 0.7ns 256MB/512MB
R700LE: 1-core, 8 ROP 32US 128BIT, using GDDR3 1.2NS 256MB/512MB

DX10.1A, HDMI 1.3, Displayport, UVD+, TSMC 45nm (i don't think so), fastest card come with 350Watt TDP (impossible).
Link

 

[nutball]

Some rumor come from Asia (don't forget Geo GPU rule #1, every GPU 6+ months away looks supergreat )

R750XT: 8-core, 64 ROP 256US 1024BIT, 20MB eRAM, using GDDR5 0.5ns 1GB/2GB
R750GT: 6-core, 48 ROP 192US 768BIT, 20MB eRAM, using GDDR5 0.5ns 768MB/1.5GB
R700XT: 4-core, 32 ROP 128US 512BIT, 10MB eRAM, using GDDR4 0.7ns 512MB/1GB
R700GT: 2-core, 16 ROP 64US 256BIT, 10MB eRAM, using GDDR4 0.7ns 256MB/512MB
R700LE: 1-core, 8 ROP 32US 128BIT, using GDDR3 1.2NS 256MB/512MB

*yawn*

eRAM? Hello, eRAM? Haven't we seen rumours of eRAM in the last two or three generations?

Yes, those look like a rehash of the bog-standard made-up specs we see for the next generation about this far out. You know, standard procedure, kid makes up a fantasy in his bedroom (usually by taking the current generation spec and doubling everything, adding a few buzzwords like "multi-core" and "eDRAM") and posts it to a forum. Three links later it's a "firm rumour".

 

[Geeforcer]

Because you know, ATI always codemanes their chips Rxxx XT/LE/etc.

Remember R360LE? Or R450XT?

Me neither...

 

[ShaidarHaran]

Some rumor come from Asia (don't forget Geo GPU rule #1, every GPU 6+ months away looks supergreat )

R750XT: 8-core, 64 ROP 256US 1024BIT, 20MB eRAM, using GDDR5 0.5ns 1GB/2GB
R750GT: 6-core, 48 ROP 192US 768BIT, 20MB eRAM, using GDDR5 0.5ns 768MB/1.5GB
R700XT: 4-core, 32 ROP 128US 512BIT, 10MB eRAM, using GDDR4 0.7ns 512MB/1GB
R700GT: 2-core, 16 ROP 64US 256BIT, 10MB eRAM, using GDDR4 0.7ns 256MB/512MB
R700LE: 1-core, 8 ROP 32US 128BIT, using GDDR3 1.2NS 256MB/512MB

DX10.1A, HDMI 1.3, Displayport, UVD+, TSMC 45nm (i don't think so), fastest card come with 350Watt TDP (impossible).
Link

Also linked in the RV670 thread. B.S. specs all-around.

 

[_xxx_]

ROTFLMAO @ 1024 bit Someone's really, really stupid beyond reason.

 

[INKster]

Does 0.5ns GDDR4 even exist yet in mass production, let alone GDDR5 ?

BTW, i love the "DX10.1A" detail. :smile:

 

[Blazkowicz]

ROTFLMAO @ 1024 bit Someone's really, really stupid beyond reason.

well we could say a voodoo5 6000 or 7950GX2 is 512bit and a Quantum3D single card voodoo2 SLI is 384bit, or by that metric the 8 VSA-100 monster card is 1024bit.
likewise there could be four 256bit dies on the highest end card.
though the aforementionned rumors smell like bullshit off course.

 

[_xxx_]

well we could say a voodoo5 6000 or 7950GX2 is 512bit and a Quantum3D single card voodoo2 SLI is 384bit, or by that metric the 8 VSA-100 monster card is 1024bit.

No, you can't say that. GX2 is not 512 bit but two 256 bit cards. That is a big difference in technical terms and saying that on the box would be an outright lie/deception.

 

[Silent_Buddha]

No, you can't say that. GX2 is not 512 bit but two 256 bit cards. That is a big difference in technical terms and saying that on the box would be an outright lie/deception.

True, however, it wasn't uncommon to see the GX2 sold as a "512 bit" card. I know some casual/hardcore gamers that still insist their card is a "512 bit" card because that's what their OEM computer salesman told them.

Regards,
SB

 

[Ailuros]

ROTFLMAO @ 1024 bit Someone's really, really stupid beyond reason.

What's the buswidth of the Xenos eDRAM daughter die? It's true that anything concerning eDRAM for the PC space can be considered as a joke, yet that buswidth would be possible if eDRAM would be involved.