Discussion: Nvidia Pascal

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The 780 ti ran significantly cooler and used significantly less power. Reference vs reference.



 
The 780Ti has a TDP of 250W. The reference reached just about 300W under stress. That is nowhere near "significantly" less. As a maytter of fact, Tomshardware testing shows it consuming less power than the 780Ti. Here is proof:

04-Power-Consumption-Gaming.png

04-Power-Consumption-05-Gaming.png

05-Power-Consumption-Torture.png

04-Power-Consumption-06-Peak.png


You can find this info here http://www.tomshardware.com/reviews/geforce-gtx-780-ti-review-benchmarks,3663-17.html and here http://www.tomshardware.com/reviews/radeon-r9-290x-hawaii-review,3650-29.html
 
I'm talking about reference like you said, comparing it to a factory overclocked card is not fair. The above graphs are comparing the reference 780Ti to the reference 290X and the 780Ti uses more power.

Even a 980Ti can draw 380W.
 



I suggest you read the article because the reference cards are mentioned.

I don't want to go into a technical explanation however basically 780 ti is more power efficient Than the 290 X...


 
I think you're confusing total system consumption and GpU Power consumption when you mentioned that the 980 ti uses 380 watts.

I suggest you read the info.

The 780 ti, 980 ti & Titan X use similar amounts of power under load depending on the ASIC quality however the maxwell cards deliver much more performance per watt...

According to the charts below the 980 ti uses 20% less power Than the 290x.
The 780 ti uses a similar amount of power as the 980 ti.

The numbers are consistent with my testing. I owned a 780 ti in the past and tested the 290x.


http://www.pcper.com/reviews/Graphics-Cards/NVIDIA-GeForce-GTX-980-Ti-6GB-Review-Matching-TITAN-X-650/Overclocking-Power-
 
No I am not. Tomshardware measures GPU consumption. I cannot find the review with the 980Ti drawing 370W for a short duration, but it was an overclocked card for sure.

I trust Tomshardware reviews more than any other site. Your 780Ti and 290X were probably non-reference designs, which makes a difference, so they are not comparable. The graphs I posted above strictly compare reference cards and are card power only, not whole system power.
 
Also I believe it is fair to compare the non reference design on both of them...

Also the 980Ti has a TDP of 250W so it must be a really OC'd edition. Even the KingPin evga edition has a TDP of 300w....
 


Uh, that's a link to a 970 and 980 review, not a 780Ti review. My charts above still remain intact.
 


In 2013 the 290x challenged and beat both the 780 and original Titan in some games...
The 780 ti was released after the 290x and beat the 290x in most games...

Upon the release of the 980 " Maxwell" more focus was placed on the new architecture for games and drivers were tailored for Maxwell.

More games started using more than 3 GB of vram which was the 780 ti's major disadvantage.


The 970 Does beat the 780 ti in some but not all games and the 290x beats the 970 in some but not all games.
For 1080p I would get the 970 without a doubt however for higher resolutions i would consider the 290x.

AMD is still challenging Nvidia however they have been struggling since the release of the 980 and 970...
Hopefully at the AMD event today Polaris will challenge Nvidia and strong innovation and advancement in the graphics industry will continue.



The reference 780, 780 ti Titan, Titan Black all have a TDP of 250 watts... Technically the 8 pin provides 150 watts, the 6 pin provides 75 watts and the pci express port provides 125 watts for a Total of 300 watts...

Basically the max TDP for the above reference Nvidia cards is aproximately 300 watts. When overclocking The Titan X my sample used aproximately 280 watts because the Titan X has an option to use 110% of the power and the Titan x.
In my testing the Titan x used a max of 114% of the power usage..

The 780 ti you can increase the power limit to 106% and my sample only used about 265 watts when overclocked.

Technically if you install a custom bios on a 780 ti in theory the card could use 300 watts if overclocked.

The Kingpin 780 ti uses 2 8 pins and a 6 pin and in theory can uses up to 500 watts with a custom bios.

 


The page i linked was the power consumption portion and included the most recent power readings for many cards.

The article also had a Edit/disclosure stating that simulation was done to get reference gtx 970 power consumption...
 

That's what I read too.
Nvidia said that the GameWorks 3.1 SDK is available worldwide as of today. The company has also released the source code for Nvidia Volumetric Lighting and the Nvidia FaceWorks demo onto GitHub. Nvidia said that the HairWorks, HBAO+ and WaveWorks source code will be released in the near future.
Click to expand...
 
Realistically i think it is more to counter AMD Gpuopen initiatives. Things that nvidia really excels were support. In the past amd try to sway people from Physx using Bullet physic but in the end developer not picking it up because no one 'sponsoring' them to use the feature in their games. all these extra feature a nice but game developer usually did not bother to implement this pc exclusive asset unless they have the 'reason'. If anything they want their games to be experienced the same regardless of plaform including that 'cinematic' 30fps.
 
To get better performance both nvidia and amd need die shrink. They already reach the limit with 28nm. Gm200 600mm2 is the biggest nvidia gpu in their entire history. Amd for their part usually use small die strategy in the end have to adopt ncidia big die strategy to make fiji possible. To top it of both amd and nvidia have to sacrifice their double precision performance. That's how critical the situation are with 28nm.

Btw the spec above could be smoke screen.
 
It depends on what nvidia want to reveal in GTC. if the card still far from launching then we will not going to get much info. Remember GK110? Nvidia actually talk about some of it's spec in may 2012. But actual hardware only available in Q4 that year in the form of tesla only. We don't know about it's gaming performance until feb 2013 when nvidia first coming up with the original titan.
 
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