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Sunday, 07 November 2010 13:14

Some Cayman Radeon HD6970 specs

Written by Fuad Abazovic
radeon_logo_new

1536 stream processors
We managed to get some specs of the soon-to-launch, well at least on paper, AMD Radeon HD 6970 card.

What we can share with you is that Cayman packs 1536 stream processors, 32ROPs, 96 Texture units and 2GB of GDDR5 memory.

We, the hard working people of Fudzilla, also have learned that the card comes with two DVI ports, 2 mini Display ports and HDMI, which is much better than what Nvidia's GTX 580 can offer.

TDP looks to be slightly lower than GTX 580’s but in worst case it looks to go up to the sky, something that we’ve seen with GTX 480 and almost 300W TDP in Furmark. Stay tuned, more specs will follow as soon as we can confirm them.
Last modified on Sunday, 07 November 2010 18:42
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Comments  

 
+39 #1 guideX 2010-11-07 13:50
It looks to me as if ATi is going to make this there tessellation/GPU-Compute beast whilst keeping Barts as the gaming range.... I don't see any other reason why they would increase the size of the chip when Barts, a chip smaller than the 5850, performed better.
 
 
-146 #2 HiTechpro 2010-11-07 13:51
....
I'm a big AMD fan but
It looks bad for amd this time
Uses much power
gets very hot
slightly slower than GTX580
and their drivers are getting worse and worser
 
 
+24 #3 comfynumb 2010-11-07 14:07
Hmm 6970 has 64 less stream processors, 16 more texture units then the 5870 and they all are going to come with 2GB of ddr5? How much bigger is it suppose to be? I would guess these changes were made to get better performance at higher rez... ( eyefinity ) and also improved tessellation.. Why less stream proc.? did they switch from vec 5? Amd drivers are fine to me... I think this card will on all fronts perform better then the 580!!
 
 
-113 #4 HiTechpro 2010-11-07 14:13
is Fud payed by AMD??
"We, the hard working people of Fudzilla, also have learned that the card comes with two DVI ports, 2 mini Display ports and HDMI, which is much better than what Nvidia's GTX 580 can offer."
 
 
+59 #5 MichaelTurbo 2010-11-07 14:15
Quoting HiTechpro:
....
slightly slower than GTX580
and their drivers are getting worse and worser

I don't understand why people slam AMD's drivers. They're flawless for me (reasonable exception was Eyefinity, a headache for months in Xfire, albeit generally superb now), with every game I play a monthly beneficiary of significant performance improvements. Now, a separate Crossfire application executable (often updated several times in a months' span) plugged the largest user-gripe; suffering between driver updates to acquire XFire profiles for new titles.

I have an Intel & AMD machine separately running Crossfire & drivers are perfect, in functionality terms.
 
 
+19 #6 Nerdmaster 2010-11-07 14:22
So Cayman will be only 40% faster than 6870 (1536 / 1120 = 1.37) on shading power (or 20% better than 5870). I thought It had 1920 sps...
 
 
+8 #7 AndromedaB 2010-11-07 14:28
anybody know what ports the 580 offers?
 
 
+20 #8 comfynumb 2010-11-07 14:29
Quoting Nerdmaster:
So Cayman will be only 40% faster than 6870 (1536 / 1120 = 1.37) on shading power (or 20% better than 5870). I thought It had 1920 sps...


Dont forget the texture unit differences....

6970:96
5870:80
5850:72
6870:56
6850:48

All have 32 rops... Maybe amd thinks the texture units were a bottle neck...
 
 
+47 #9 Wibowit 2010-11-07 14:30
Looks like they went 4way VLIW. It's very good - previous 5d design with 4 weak and 1 fat unit wasn't the smartest decision - weak units provided low IPC and fat unit wasn't utilized most of the time. It's easy to use float4 or vec4 or something like that, but 5 isn't a power of two.

Cypress:
1600 / 5 = 320 5d units

Cayman:
1536 / 4 = 384 4d units

I hope new processing units provides much better IPC.

If they still want to use 256-bit memory bus then I think they will use some crazy fast GDDR5 memories.
 
 
+45 #10 Sodomy 2010-11-07 14:38
Quoting HiTechpro:
is Fud payed by AMD??
"We, the hard working people of Fudzilla, also have learned that the card comes with two DVI ports, 2 mini Display ports and HDMI, which is much better than what Nvidia's GTX 580 can offer."


Are you retarded? he is simply saying the ports on the back of the 6970 are better then 580's offering. which... guess what? they are. go look at the wiki for HDMI, Display port and DVI. you will agree with me. Also This sit isn't really AMD friendly so it is kind of ironic to suggest them getting paid by AMD.
 

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