AMD: Southern Islands (7*** series) Speculation/ Rumour Thread

[Davros]

yes, 69% ..

31% of your gpu doesnt work ?

 

[AlphaWolf]

31% of your gpu doesnt work ?

this was posted when GPU-Z 0.5.8 was released.

The next new feature is ASIC quality, designed for NVIDIA Fermi (GF10x and GF11x GPUs) and AMD Southern Islands (HD 7800 series and above), aimed at advanced users, hardware manufacturers, and the likes. We've found the ways in which AMD and NVIDIA segregate their freshly-made GPU ASICs based on the electrical leakages the chips produce (to increase yield by allotting them in different SKUs and performance bins), and we've found ways in which ASIC quality can be quantified and displayed. Find this feature in the context menu of GPU-Z. We're working on implementing this feature on older AMD Radeon GPUs.

 

[gkar1]

Your £290 card costs £420 here. Even with 20% VAT, that's still an £80 disparity, no wonder you are so blasé

Ouch.

 

[AnarchX]

7970M leaked by Dell?
1280SPs 850/1200MHz 100W

via: http://forum.notebookreview.com/8454342-post285.html

The information could be not final (like the GK107 cards with wrong core-clock).
But this would be a solid step over HD 6990M (1120SPs VLIW5@715MHz).

 

[AlphaWolf]

PItcairn at 850 Mhz. It might not be final, but I don't think you should expect much more than that as full pitcairn hits much closer to 150W.

Interesting they've chosen to brand it as the 7970m rather than the 7990.

 

[lanek]

Hard to know clock on laptop parts, they offtly change them for meet their tdp specifications

 

[UniversalTruth]

Interesting they've chosen to brand it as the 7970m rather than the 7990.

Yup, they leave the door opened for a faster version.
Although these names are so misleading that sometimes it leaves the impression that the court should decide whether they are legal.

 

[ECH]

Will we see another version of this chip before the next gen hits the market or will the 7970 be it? The 7970 OC Edition is a good start but was looking for the stock cooler that exhaust air out of the case.

 

[lanek]

Look like AMD have choose the Computex for launch the 7990. Well need to be confirmed.


http://www.techpowerup.com/164746/AMD-Chooses-Computex-2012-as-Radeon-HD-7990-Launchpad.html

http://www.techpowerup.com/164746/AMD-Chooses-Computex-2012-as-Radeon-HD-7990-Launchpad.html

Even as NVIDIA is on the verge of unveiling its GeForce GTX 690 dual-GPU graphics card, at GeForce LAN Shanghai, AMD is in no hurry. Its competitive graphics card to the GTX 690, the Radeon HD 7990 "New Zealand", will be kept under the wraps till Computex 2012 (early June), DonanimHaber learned. Radeon HD 7990 will pack two completely unlocked 28 nm "Tahiti" GPUs, a total of 4,096 Graphics CoreNext stream processors, 6 GB of GDDR5 memory, and the ability to drive 6-monitor Eyefinity, out of the box.

 

[Psycho]

Seems this hasn't been posted:
http://www.anandtech.com/show/5778/amd-launches-radeon-7700m-7800m-and-7900m-mobile-gpus

   			Radeon HD 7900M Radeon HD 7800M Radeon HD 7700M
Core Name 		Wimbledon 	Heathrow 	Chelsea
Stream Processors	1280 		640 		512
Texture Units		80 		40 		32
ROPs 			32 		16 		16
Z/Stencil 		128 		64 		64
L2 Cache 		512KB 		512KB 		512KB
Core Clock 		850MHz 		800MHz 		675MHz
Memory Clock 		4.8GHz 		4.0GHz 		4.0GHz
Memory Type		2GB GDDR5 	2GB GDDR5 	2GB GDDR5
Memory Bus Width 	256-bit 	128-bit 	128-bit
Memory Bandwidth 	153.6GB/s 	64GB/s 		64GB/s
PCI Express 		3.0 		3.0 		2.1

No power numbers yet though.

 

[lanek]

 

[Pressure]

Seems this hasn't been posted:
http://www.anandtech.com/show/5778/amd-launches-radeon-7700m-7800m-and-7900m-mobile-gpus

   			Radeon HD 7900M Radeon HD 7800M Radeon HD 7700M
Core Name 		Wimbledon 	Heathrow 	Chelsea
Stream Processors	1280 		640 		512
Texture Units		80 		40 		32
ROPs 			32 		16 		16
Z/Stencil 		128 		64 		64
L2 Cache 		512KB 		512KB 		512KB
Core Clock 		850MHz 		800MHz 		675MHz
Memory Clock 		4.8GHz 		4.0GHz 		4.0GHz
Memory Type		2GB GDDR5 	2GB GDDR5 	2GB GDDR5
Memory Bus Width 	256-bit 	128-bit 	128-bit
Memory Bandwidth 	153.6GB/s 	64GB/s 		64GB/s
PCI Express 		3.0 		3.0 		2.1

No power numbers yet though.

Still find it slightly annoying that they up the naming convention on their mobile counterparts.

Just name Pitcairn the Radeon HD 7800M series and the Cape Verde the radeon 7700M series.

 

[lanek]

I agree with you, but nothing new sadly, this make at least 10 years ATI /AMD and Nvidia do it. ( well i dont remember the last time a mobile chip was named differently ).

( I still see some peoples really think they own a 6970 Cayman based mobile gpu in their laptop or a GTX580 ( on iMac too specially, as it seems some dont even know this is a 6970M inside, not a 6970 desktop . I remember a friend who was show me his Imac 27" saying me the card is the best can offer AMD in gpu ( at this time ), i dont tell you the head he was made when i have explain him the difference between a 6970M and 6970.).

 

[Dave Baumann]

As mentioned before, the naming is going roughly by segmentation, however the segmentation is different between Desktop and Notebook due to the TDP limitations (and their overall run-rates). What is considered "performance" on desktop is "enthusiast" in notebook.

 

[Man from Atlantis]

interesting chelsea is pcie 2.1, is it to save power ?

 

[Davros]

I cant imagine an interface saving power

 

[Albuquerque]

interesting chelsea is pcie 2.1, is it to save power ?

On my Socket 2011 (SNB-E) system, my Sapphire 7970 OC board (when idle) moves to a PCI-E 1.1 interface speed, or at least that's what GPU-Z indicates. When under load, it moves up to a PCIE 3.0 interface speed. Thus, I agree withi Davros in that I do not see how it would be a tangible power savings in any circumstance.

 

[Davros]

It probably allows mboard makers to keep design and implementation costs down.

 

[Man from Atlantis]

It probably allows mboard makers to keep design and implementation costs down.

But you dont need to do that, just slap it on pcie 2 mobo, done.. Did AMD do similar thing like laser cutting CUs and so.. I have no idea is such a thing even possible?

 

[Davros]

bugger
maybe it saves amd money ?