Nvidia Lying About Maxwell GTX 980 Specs To Press.

[Katness Everdeen]

It's very funny when you think about it but Nvidia actually sent both of the following images to the press to cover the Maxwell launch.
And the images below have conflicting information.

 

These figures are for the total system power consumption. So they're naturally going to be higher than the GPU's power consumption alone. That's not the issue.
However compare the GTX 980 and the GTX 680. According to Nvidia the GTX 980 consumes 30W less but we clearly see in the graph above that the GTX 980 actually consumes 12 watts more than the GTX 680. Which actually makes it a 207W card not a 165W card.

 

Then Nvidia does some questionable math to arrive at the 2X performance/w improvement headline. Nvidia divides the TFLOPs by the power to get the performance per watt.
So 5 TFLOPS/165W = 30 GFLOPS/W which is twice what the 680 is capable of. Which is simply wrong.

Now if you argue that 165W TDP is actually the heat output for the GTX 980 and not power consumption and that the TDP (Thermal Design Power) actually doesn't have to represent power consumption. Then there is something very clearly wrong here because you can't use a measure of heat to get performance/w. The TDP obviously represents power consumption to Nvidia because they used it to measure performance/w. Again performance/TDP = 5 TFLOPS/165 = performance/w = 30 GFLOPS/W .

http://videocardz.com/52552/nvidia-geforce-gtx-980-and-gtx-970-press-slides-pictures-charts

[LukaP]

TDP =/= Power consumption

 

Edit:

To clarify, TDP is what a card is designed to output as heat. now on similar architectures, this can be used to compare power consumption. 

 

the fact that maxwell has a lower TDP at the sameish power consumtion just means less energy is wasted as heat, and more is used for calculations

[TheSLSAMG]

I am very sure those charts are for entire systems, since it is physically impossible to pull 167W from a PCI-E slot (it would probably go on fire.)

 

Seems I am wrong, but @LukaP makes a good point.

[Nineshadow]

TDP != energy consumption

[WinNut]

Videocardz isn't a reliable source...

[NateGSR117]

Hhhmmmmmmm

[Guest Kloaked]

Nvidia's official spec is what to go off of in the first place and nothing else until we see an official benchmark.

[RelentlessAF]

When did Nvidia release an official spec for the 980?

[Slinkey]

Wait has Nvidia said anything officially about the GTX 980?

[Katness Everdeen]

TDP =/= Power consumption

 

Edit:

To clarify, TDP is what a card is designed to output as heat. now on similar architectures, this can be used to compare power consumption. 

 

the fact that maxwell has a lower TDP at the sameish power consumtion just means less energy is wasted as heat, and more is used for calculations

Sorry but Nvidia CLEARLY states power NOT TDP.

[menendez1293]

TDP != energy consumption

Love the coding reference :lol: 

[toggleguy]

I doubt this is true.. ther'd be no reason for them to lie, as amd's latest cards arnt exactly efficient and don't run very cool

[Nineshadow]

Wait....780Ti consuming more power than an r9 290x? 

[LukaP]

Sorry but Nvidia CLEARLY states power NOT TDP.

TDP = Thermal Design POWER dont you logic and facts me

[simtransporter]

TDP =/= Power consumption

 

Edit:

To clarify, TDP is what a card is designed to output as heat. now on similar architectures, this can be used to compare power consumption. 

 

the fact that maxwell has a lower TDP at the sameish power consumtion just means less energy is wasted as heat, and more is used for calculations

Well said, To add to that TDP and power consumption are somewhat related, but they are not the same like you've mentioned.

[TERAFLOP]

It's ok everyone. Nvidia can lie all they want because people like @LukaP will have you convinced that power isn't power consumption but actually something else. And performance/watt isn't a measure of power efficiency no it's actually a measure of performance/heat everyone. Whatever that is...

[flibberdipper]

TDP and actual power consumption are two different ball games, buddy.

[TheSLSAMG]

Sorry but Nvidia CLEARLY states power NOT TDP.

NVIDIA also states the official TDP of the GTX 680 as 195W, so I am sure by this that they are speaking of TDP.

 

http://www.geforce.com/Active/en_US/en_US/pdf/GeForce-GTX-680-Whitepaper-FINAL.pdf

 

[daemonowner]

I suspect the second table is the system power consumption. Happens all the time.

[LukaP]

It's ok everyone. Nvidia can lie all they want because people like @LukaP will have you convinced that power isn't power consumption but actually something else.

im not saying they are telling the truth. im saying that they arent lying, just using their vocabulary to their advantage... 

[minimoose]

TDP = Thermal Design POWER dont you logic and facts me

When did you break up with @Askew?

[simtransporter]

Sorry but Nvidia CLEARLY states power NOT TDP.

naww, those numbers look a lot like TDP to me.

[LukaP]

When did you break up with @Askew?

when shitposting was taken down. no worries i have my bae travis now :3

[Khvarrioiren]

Sorry to rain on your parade, but that's total system consumption.

[SLOWION]

yeah that second table is definitely for a full system under load