AMD Cayman info (or rumor)

[Sn0wm@n]

6950 is 1536sp @ 890 Mhz apparently.
1gb vram

how much did the 5870 had ?????

[slaveondope]

how much did the 5870 had ?????

1600sp 850/1200 1gb

[Jowy Atreides]

how much did the 5870 had ?????

* 2.15 billion 40nm transistors
* TeraScale 2 Unified Processing Architecture
o 1600 Stream Processing Units
o 80 Texture Units
o 128 Z/Stencil ROP Units
o 32 Color ROP Units
* GDDR5 interface with 153.6 GB/sec of memory bandwidth
* Engine clock speed: 850 MHz
* Maximum board power: 188 Watt

[generics_user]

* 2.15 billion 40nm transistors
* TeraScale 2 Unified Processing Architecture
o 1600 Stream Processing Units
o 80 Texture Units
o 128 Z/Stencil ROP Units
o 32 Color ROP Units
* GDDR5 interface with 153.6 GB/sec of memory bandwidth
* Engine clock speed: 850 MHz
* Maximum board power: 188 Watt

so according to current rumors 6950s raw processing power (1536 SPs) is 10% higher than 5870; together witht he supposed to be more efficient shader setup this thing should be able to beat the 480 and 6970 should be on par with the 580 (if we consider the gap between 50 and 70 cards of previous series)

[Lightman]

so according to current rumors 6950s raw processing power (1536 SPs) is 10% higher than 5870; together witht he supposed to be more efficient shader setup this thing should be able to beat the 480 and 6970 should be on par with the 580 (if we consider the gap between 50 and 70 cards of previous series)

Current rumor is 6970 has 1536SP and 96TMU.

[zalbard]

Current rumor is 6970 has 1536SP and 96TMU.

Hope that's not true... I have my 1600sp 5870 for way too long, lol. Would feel like a downgrade...

[saaya]

Current rumor is 6970 has 1536SP and 96TMU.

weird sp to tmu ratio, no?
and if thats all, then wow... it almost doesnt deserve the 6000 name if you ask me :/

[RaZz!]

weird sp to tmu ratio, no?
and if thats all, then wow... it almost doesnt deserve the 6000 name if you ask me :/

we're in a pretty strange situation atm.

amd went with 2-architectures (vliw5 and vliw4) for their 6000 series so it's pretty hard to derive the performance of cayman from the already released barts.
then there are rumors cayman will have a huge die - if we now consider that barts is smaller than cypress, amd needs to put a lot more stuff into cayman to reach "a huge die".

on the other side of the gpu-river we have nvidia with their gtx580 - "a fixed fermi"? nobody really knows, but i really doubt that nvidia had enough time to really improve fermi that much since its release.
so what does the gtx580 offer to deserve being part of a 500 series? there must be more to it as well.

when the first tangible 6000 series rumors hit the web a lot of people asked why barts/cayman deserves to be a new series. but if you now compare what we know about 6900 and gtx580, i really think that the 6000 series deserves its name more than the gtx580 does.

i really hope all these questions will be answered at the end of november, after both companies presented/released their new high-end. it just sux to stumble in the dark like this :F

[Mechanical Man]

Muropaketti said that AMD sent ~1600sp cutdowns to partners.

It might very well be, that other partners got other sized gpus's so, that any leak
a) could be traced
b) in case of more than one leak, would contradict themselves.

[generics_user]

Muropaketti said that AMD sent ~1600sp cutdowns to partners.

It might very well be, that other partners got other sized gpus's so, that any leak
a) could be traced
b) in case of more than one leak, would contradict themselves.

quite possible; they could send these cut down chips for board validation, fully equipped ones for production (without a working BIOS) and the final BIOS just in time to flash the completed cards and ship them as fast as possible, partners may not like that but it's an explanation for the lack of information

the other possibility is that AMD has some problems with the cards and can't ship in time...

[Macadamia]

Muropaketti said that AMD sent ~1600sp cutdowns to partners.

It might very well be, that other partners got other sized gpus's so, that any leak
a) could be traced
b) in case of more than one leak, would contradict themselves.

Well they sent 800SP Barts.. reason why XFX had 800 on their spec sheets.