Sapphire to release 7970 clocked at 1325, also a 6gb variant.

Page 3 - Seeking answers? Join the AnandTech community: where nearly half-a-million members share solutions and discuss the latest tech.

3DVagabond

Lifer
Aug 10, 2009
11,951
204
106
lol, lets try this again. MOST of the reviews could hit 1125 which was the most allowed in the CCC. some reviews could not even hit 1100 though. that makes me wonder just how much voltage it would take to get to a whopping 1325.

I would imagine that 1.3GHz chips would be rare, highly binned, cherry picked, golden samples. You know, like the detractors were claiming all of the review samples were.

As far as voltage goes, maybe (likely?) they can handle voltage like Cayman can. I've seen reviewers dump 1.3v into them and 1.2v used for 24/7 operation. No factory cards at those voltages though. Might be because it's not really worth it with Cayman performance wise.

Of course, this could all be FUD too.
 

Kippa

Senior member
Dec 12, 2011
392
1
81
Doom 4 is supposed to be based on megatexture tech and is supposed to be more advanced than RAGE. At a guess I would infer that it would use more textures. Doom 4 might push the envelope and actually make use of a 6gb video card. Of course this is just a guess, but if it is more advanced and megatexture games take of then having a 6gb gfx card does seem valid and not overkill.
 
Last edited:

Joseph F

Diamond Member
Jul 12, 2010
3,523
2
0
I heard that Doom 4 was supposed to have something like >1TB of textures if they were uncrompressed.
 

Kippa

Senior member
Dec 12, 2011
392
1
81
Are the 6gb rumoured to be released on Jan 9th? Or will they come much later on?
 

Grooveriding

Diamond Member
Dec 25, 2008
9,108
1,260
126
Are the 6gb rumoured to be released on Jan 9th? Or will they come much later on?

I can't see what possible use 6GB is going to be, it's just a massive amount of VRAM. It will probably come in at a really expensive price as well with the 6 mini-DP and all that VRAM.

AFAIK currently you cannot use 6 30" panels with eyefinity, if that has changed I could see the use for the 6GB. I believe the max resolution with 6 panels and eyefinity currently is 5760x2400. If that is bumped to 7680x3200 there might be a need for that much memory.
 

Kippa

Senior member
Dec 12, 2011
392
1
81
Actually a 6gb video card could come in handy with 3d applications packages where you have huge models with shitloads of high resolution textures. This is one of the reasons why I am contemplating getting a 6gb card. Also the huge video memory might possibly be used to advantage with gpu rendering. Another reason would be that you it could host large data sets for data processing in math apps for gpu processing.

And for gaming as I have mentioned Doom 4 will more than likely be using a modified and updated megatexturing which will eat video memory like a geek would eat free pizza.
 

Grooveriding

Diamond Member
Dec 25, 2008
9,108
1,260
126
Actually a 6gb video card could come in handy with 3d applications packages where you have huge models with shitloads of high resolution textures. This is one of the reasons why I am contemplating getting a 6gb card. Also the huge video memory might possibly be used to advantage with gpu rendering. Another reason would be that you it could host large data sets for data processing in math apps for gpu processing.

And for gaming as I have mentioned Doom 4 will more than likely be using a modified and updated megatexturing which will eat video memory like a geek would eat free pizza.

I had no idea about the compute/3d stuff, I just game. Wouldn't someone looking to use a Tahiti for that go for a Firepro card based on Tahiti ? I guess the 7970 would be a much cheaper way to do that though :ninja:
 

frostedflakes

Diamond Member
Mar 1, 2005
7,925
1
81
Could have clocked it 2MHz higher and sold it as the 1337 edition. Seems Sapphire missed a golden marketing opportunity.
 

Magic Carpet

Diamond Member
Oct 2, 2011
3,477
232
106
Average consumer wanting the best... not necessarily familiar with leet language will buy it ;-p
 

96Firebird

Diamond Member
Nov 8, 2010
5,712
316
126
Any chance this will come with a waterblock attached, and not have an air cooler?

Thats probably what the WC is on the second line, but what could RX be on the first one?

Edit - Should have read the second page, looks like it was already discussed...

And I think the 2304 was the original intent by AMD, but they had to settle for 2048 to get it to market. Hence why it is crossed out, and have lower BIOS numbers...
 
Last edited:

Smartazz

Diamond Member
Dec 29, 2005
6,128
0
76
I wonder how GCN's double precision performance will compare to Kepler and Fermi. Is AMD planning to artificially limit double precision performance to sell higher end cards? If not, nVIDIA is going to be seriously undercut by a 6GB 7970 with serious double precision performance.
 

VulgarDisplay

Diamond Member
Apr 3, 2009
6,193
2
76
Any chance this will come with a waterblock attached, and not have an air cooler?

Thats probably what the WC is on the second line, but what could RX be on the first one?

Edit - Should have read the second page, looks like it was already discussed...

And I think the 2304 was the original intent by AMD, but they had to settle for 2048 to get it to market. Hence why it is crossed out, and have lower BIOS numbers...

I was wondering if RX was for some type of phase change cooling.
 

VulgarDisplay

Diamond Member
Apr 3, 2009
6,193
2
76
Ah, I wonder if it's a triple slot cooler or something. Either way I would wager that there will be a limited amount of these 1335mhz cards because they have to be absolutely superb chips.
 

ddarko

Senior member
Jun 18, 2006
264
3
81
Latest rumors indicate that some CUs on the tahiti pro chip are disabled, in order to get it to market faster. This also means that AMD will be ready for nvidias next offering, as AMD is very likely (99% chance) of releasing a tahiti pro refresh with higher clockspeeds and lower TDP. This is the same thing nvidia did with Fermi and GTX 480, part of the die was disabled until the 580 was released.

Its basically looking like AMD is ready to fight nvidia using nvidias strategy. Much like nvidia did with the Fermi 5xx refresh.

AMD has officially denied that there are disabled cores:

http://www.brightsideofnews.com/new...dden-cores-in-radeon-hd-7970-(tahiti-xt).aspx

Late last week, we started hearing a rumor considering recently launched Radeon HD 7970. The rumor was based on leaked Sapphire documents that were mentioning insanely high clocks for their upcoming parts, but also specified parts featuring the Tahiti GPU with 2304 cores.

Given that AMD did not deliver die shots of Southern Islands GPU architecture, it wasn’t too hard to see the tech media and consumers spreading like wildfire. AMD did not help the matter by not returning the early calls but in all fairness, it was New Year weekend.

We contacted AMD's representatives such as Mr. Chris Hook and Eric Demers and received a straight answer from the company, represented by Mr. Hook, Senior PR exec:

"There are no hidden cores…"

There you go - unlike Intel that had serious issues with power consumption and heat dissipation on their Sandy Bridge-Extreme processors and had to disable two processing cores and 5MB of L3 cache, or NVIDIA that had 512-cores inside their GF100 (GeForce GTX 480) chip and had to disable 32 processing cores in order to get acceptable yields - AMD has 4.3 billion transistors which pack a 384-bit interface, 2048 processing cores in 32 Compute Units (CU0-CU31) and there is no room for couple of hundred million additional transistors "doing nothing."
 
Last edited:

tech97

Junior Member
Dec 27, 2011
5
0
0
can AMD put more transistors on those chips ??
i think nvidia chips is bigger than amd one's

sorry for bad English
 

Arzachel

Senior member
Apr 7, 2011
903
76
91
I wonder how GCN's double precision performance will compare to Kepler and Fermi. Is AMD planning to artificially limit double precision performance to sell higher end cards? If not, nVIDIA is going to be seriously undercut by a 6GB 7970 with serious double precision performance.

1/4 dp rate for the 7970, 1/2 for Firepro products.

The problem is that people/businesses use Teslas because CUDA is much more prominently used for compute apps than OpenCL. AMD needs to push their software before they can get a piece of that GPGPU pie.
 
sale-70-410-exam    | Exam-200-125-pdf    | we-sale-70-410-exam    | hot-sale-70-410-exam    | Latest-exam-700-603-Dumps    | Dumps-98-363-exams-date    | Certs-200-125-date    | Dumps-300-075-exams-date    | hot-sale-book-C8010-726-book    | Hot-Sale-200-310-Exam    | Exam-Description-200-310-dumps?    | hot-sale-book-200-125-book    | Latest-Updated-300-209-Exam    | Dumps-210-260-exams-date    | Download-200-125-Exam-PDF    | Exam-Description-300-101-dumps    | Certs-300-101-date    | Hot-Sale-300-075-Exam    | Latest-exam-200-125-Dumps    | Exam-Description-200-125-dumps    | Latest-Updated-300-075-Exam    | hot-sale-book-210-260-book    | Dumps-200-901-exams-date    | Certs-200-901-date    | Latest-exam-1Z0-062-Dumps    | Hot-Sale-1Z0-062-Exam    | Certs-CSSLP-date    | 100%-Pass-70-383-Exams    | Latest-JN0-360-real-exam-questions    | 100%-Pass-4A0-100-Real-Exam-Questions    | Dumps-300-135-exams-date    | Passed-200-105-Tech-Exams    | Latest-Updated-200-310-Exam    | Download-300-070-Exam-PDF    | Hot-Sale-JN0-360-Exam    | 100%-Pass-JN0-360-Exams    | 100%-Pass-JN0-360-Real-Exam-Questions    | Dumps-JN0-360-exams-date    | Exam-Description-1Z0-876-dumps    | Latest-exam-1Z0-876-Dumps    | Dumps-HPE0-Y53-exams-date    | 2017-Latest-HPE0-Y53-Exam    | 100%-Pass-HPE0-Y53-Real-Exam-Questions    | Pass-4A0-100-Exam    | Latest-4A0-100-Questions    | Dumps-98-365-exams-date    | 2017-Latest-98-365-Exam    | 100%-Pass-VCS-254-Exams    | 2017-Latest-VCS-273-Exam    | Dumps-200-355-exams-date    | 2017-Latest-300-320-Exam    | Pass-300-101-Exam    | 100%-Pass-300-115-Exams    |
http://www.portvapes.co.uk/    | http://www.portvapes.co.uk/    |