AMD Cayman info (or rumor)

**hurrdurr** · 12-09-2010, 07:55 AM

Originally Posted by saaya

so a gtx570 is more than 20% faster than a gtx480?

epic!

On Vantage it is. also, on meth it is. :P

**Zoran** · 12-09-2010, 08:13 AM

I honestly do not believe that 1536SP is right, as we know it's going to be larger in size than Cypress and we also know that Cypress has 1600SP. Unless, they quadrupled everything else... and that does not make any sense to me either...

**Dezmen** · 12-09-2010, 08:21 AM

Originally Posted by Zoran

I honestly do not believe that 1536SP is right, as we know it's going to be larger in size than Cypress and we also know that Cypress has 1600SP. Unless, they quadrupled everything else... and that does not make any sense to me either...

6950 have 1536SP, not 6970! Stop read FUD

.

**zalbard** · 12-09-2010, 08:44 AM

Originally Posted by generics_user

looks slightly disappointing and contradicts with leaked prices which suggest performance on par with 580 but maybe these prices were exaggerated

I really hope the price/performance ratio is great. Otherwise we will be stuck with overpriced GTX570 and GTX580 (and 69x0 cards, obviously) for a while.

Originally Posted by Dezmen

6950 have 1536SP, not 6970! Stop read FUD

.

Hopefully you're correct. 1536 does look very disappointing, indeed. Still less than Radeon 5870 has. Hard to believe that...

**Zoran** · 12-09-2010, 08:45 AM

...where did I mention that I believe it????

**Manicdan** · 12-09-2010, 08:46 AM

if the 6970 is 1536, how many would the 6950 have? and how much performance per SP is needed for it to have a 15-20% gain over 6870 with about 20% lower clocks?

**Iconyu** · 12-09-2010, 08:51 AM

Maybe that switch unlocks it's turbo mode, allowing it to clock itself as it wishes on a higher TDP?

**Olivon** · 12-09-2010, 08:56 AM

Originally Posted by Olivon

GTX 580 In stock : 469€

GTX 570 In stock : 350€

edit : Seems more that HD6950 will be on par with GTX 570 in term of prices and the same for the HD6970/GTX580 couple

Correct : 302€ for GTX 570 In stock

and 295€ but not in stock

**Gilgamesh** · 12-09-2010, 08:57 AM

DIGITIMES

As Nvidia has launched its latest GeForce GTX 570 GPU as well as reduced the price of its 400 series GPUs, AMD is set to launch its new Radeon HD 6970 and 6950 GPUs in the third week of December, according to sources from graphics card makers.

However, initial shipment volumes are expected to be limited, the sources noted.

The sources cited its testing figures and pointed out that the GeForce GTX 580 has better performance than AMD's new Radeon HD 6970, therefore AMD is expected to price the GPU US$50-70 less than the GTX 580 to cover the disadvantage.

**iMacmatician** · 12-09-2010, 09:31 AM

Originally Posted by Manicdan

if the 6970 is 1536, how many would the 6950 have? and how much performance per SP is needed for it to have a 15-20% gain over 6870 with about 20% lower clocks?

If I do some simple calculations:

Assuming 1 NI SP = 0.95x 1 EG SP,

Barts Pro: 775 MHz x 192 SP (960 SPU) = 148800
Barts XT: 900 MHz x 224 SP (1120 SPU) = 201600
Cayman XT: 880 MHz x .95 x 384 SP (1536 SPU) [rumored] = 321024 = 1.59x Barts XT

Taking around 20% lower clocks from 6870/6970,
Cayman Pro: 725 MHz x .95 x 352 SP (1408 SPU) [speculation] = 242440 = 1.20x Barts XT
(that also gives Cayman XT = 1.32x Cayman Pro)

**Manicdan** · 12-09-2010, 09:56 AM

Originally Posted by iMacmatician

If I do some simple calculations:

Assuming 1 NI SP = 0.95x 1 EG SP,

Barts Pro: 775 MHz x 192 SP (960 SPU) = 148800
Barts XT: 900 MHz x 224 SP (1120 SPU) = 201600
Cayman XT: 880 MHz x .95 x 384 SP (1536 SPU) [rumored] = 321024 = 1.59x Barts XT

Taking around 20% lower clocks from 6870/6970,
Cayman Pro: 725 MHz x .95 x 352 SP (1408 SPU) [speculation] = 242440 = 1.20x Barts XT
(that also gives Cayman XT = 1.32x Cayman Pro)

lol i should have known you would do the calculations.
the issue is that perf per $ for barts pro and xt show the xt as being much better, but simply does not seem to be that way in real tests (too much memory limitation keeping them quite close)

the barts xt is 35% higher in SP perf, but the price is only 26% higher, so its really tough to speculate on real life just with SP perf.

**kadozer** · 12-09-2010, 10:03 AM

Chuck Norris mode switch?

**Calmatory** · 12-09-2010, 10:04 AM

Number of SPs is completely irrelevant because of the changes in the architecture. It's like trying to compare CPUs by their clockspeeds alone without being clear about the IPC. Sure, it can give some indication but it's far off at best.

**Biker** · 12-09-2010, 10:18 AM

MSI HD6970 listed.

Part number R6970-2PM2D2GD5

MSI HD 6950 listed

Part Number R6950-2PM2D2G5

http://www.neox.fr/Composant-Informa...D5/A28105.html

€496 for a HD6970.... ouch!

**cold2010** · 12-09-2010, 10:29 AM

http://we.pcinlife.com/forum.php?mod...=1#pid29161501

**bill_d** · 12-09-2010, 10:30 AM

Originally Posted by kadozer

Chuck Norris mode switch?

hmm

The -20 to 20 slider is a %, you can adjust the power of your card in the overdrive tab by 20% up or down.
the 250W is the maximum board consumption, but the non-OC power consumption is 190/200W.
Cayman can actually clock almost as flexible as any modern CPU, so it can run at 650 MHz or 800 MHz during benchmarking if you enable Powertune

http://forum.beyond3d.com/showpost.p...postcount=5720

**zalbard** · 12-09-2010, 10:31 AM

Originally Posted by cold2010

http://we.pcinlife.com/forum.php?mod...=1#pid29161501

I sure hope 6970 doesn't have disabled units like GTX480. Now that would be a major fail in my book.

**Biker** · 12-09-2010, 10:39 AM

In case you guys missed it I just found the MSI version of the HD6970 listed on a french website for just under 500 Euros...

The HD6950 is also there for 396 Euros.....

I am NOT liking those prices....

**MrMojoZ** · 12-09-2010, 10:40 AM

Originally Posted by Biker

In case you guys missed it I just found the MSI version of the HD6970 listed on a french website for just under 500 Euros...

The HD6950 is also there for 385 Euros.....

I am NOT liking those prices....

You probably want to avoid websites displaying made up prices then.

**TheBreezyBB** · 12-09-2010, 10:40 AM

Looks like a Sinking Ship with no one on the Rescue!

**kadozer** · 12-09-2010, 10:41 AM

Originally Posted by Biker

In case you guys missed it I just found the MSI version of the HD6970 listed on a french website for just under 500 Euros...

The HD6950 is also there for 385 Euros.....

I am NOT liking those prices....

How much is that French website selling the GTX 580 for?

**eXceeded** · 12-09-2010, 10:42 AM

Yeah think it's at this point definitely a case of there was something wrong, but from what OCUK is saying (thank god someone is saying something!!!) it's not all bad!! Also bit late for people to get for Christmas.

**zalbard** · 12-09-2010, 10:43 AM

Originally Posted by Biker

In case you guys missed it I just found the MSI version of the HD6970 listed on a french website for just under 500 Euros...

The HD6950 is also there for 385 Euros.....

I am NOT liking those prices....

In case you missed it, and you did miss it, it was posted and discussed 2 pages ago.

Originally Posted by onethreehill

MSI Radeon HD 6950 & HD 6970 listed in France
http://www.tcmagazine.com/tcm/news/h...-listed-france

http://forum.beyond3d.com/showpost.p...postcount=5673

I do not think these prices are final. Plus, it's France. I am sure the prices will be much lower on Dec, 15th, once decent availability is there.

**Biker** · 12-09-2010, 10:46 AM

Originally Posted by zalbard

In case you missed it, and you did miss it, it was posted and discussed 2 pages ago.

I do not think these prices are final. Plus, it's France. I am sure the prices will be much lower on Dec, 15th, once decent availability is there.

You are right .. i did miss that

I could not find a 580 on the same site for comparison so I am hoping for BS

**MrMojoZ** · 12-09-2010, 10:49 AM

Originally Posted by TheBreezyBB

Looks like a Sinking Ship with no one on the Rescue!

Better than the trollboat. Hows that working out for yah?

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