AMD 7970m vs GTX 680m

I want a brand brand brand new 256-bit mental recall bus.

 

That was a lolworthy translation for shure. brand brand brand new loool

 

hahahahaha...brutal, just brutal.

 

hey guys know this is off topick but thought you would like it

Powercolor Radeon HD 7970 X2 på bild - Grafikkort - SweClockers.com

 

Well its "offical" now. Our GTX 680M is one of these three, most likely the GTX 660 since its GK104 despite the GK106 rumors that floated around earlier and it too will be announced at Computex in a few days. I don`t get that 192bit bus to fit with 4GB GDDR5 that the 680M is suppose to have though. But it does make sense since 660M have 128bit instead of 192bit, but have greater memory bandwidth than the 192bit since the memory clock is boosted up.
Anyhow, GTX 660 is suppose to fight against 7950, not 7870, so this is looking pretty bright

NordicHardware

 

if that's the case then it should be pretty cheap right? right?

 

Yeah it looks pretty cheap. But I think Nvidia will price it based on performance instead with the notebook GPU. And I`m still not fully convinced about the 4GB, since I think it will be 192bit 3GB with high clocked GDDR5.
Well, if they don`t go allin and introduce a 256bit 4GB based on GTX 670. Thats always a possibility

 

Nothing stopping a 1152 shader core with a 256bit bus, they just dont disable one of the memory buses.

 

True, but have Nvidia ever mixed memory bus from one desktop model with the cores from another one? I don`t think I`ve ever seen that happend before.

It gotta be a 256bit bus. There is not way 680M will feature a 192bit bus when I look at what we already know. It have 8 memory chips, so either 256MBx8 = 2048MB or 512MBx8 = 4096MB , 32bitx8 = 256bit.

 

This round could be different. These models are all from the same GK104 chip. Wasn't the 560 a different chip?

dd_wizard

 

The gt 555m has two types of memory band 128bit and 192bit, noting strange
Doubt they will use 192bit even if it was just for the sake of publicity

 

GTX 580M, exactly the same as GTX 560 ti. same core count, same memory bus

GTX 480M, exactly the same as GTX 465, same core count, same memory bus

GTX 280M, exactly the same as 9800 GTX+, same core count, same memory bus

All of these based on ONE desktop model, not a mixture of two

 

So most probably the 680M will be a downclocked 660 or 670?

 

I think a downclocked GTX 670 looks very promising. Same core count and same memory bus. Only downclocked
It draws 7W less than GTX 560 TI which Nvidia made the GTX 580M out of

But then again, GTX 660 is also announced at the same time as 680M...

 

Wait so is the 7970m still on recall for clevo models? How come i can still order one on xoticpc?

 

GTS450 = 128bit mem bus
GTX460M = 192bit mem bus

Both based on the same core.

Also I doubt they will but Nvidia do have the tech to put odd amounts of memory on a bus.

 

You won`t find the top models with a mixture of two desktop GPUs. The two Fermi matched one desktop model, 200 series did too. Based on history, I think they will stick to that this round too. We will see.

 

how come you don't follow the clevo 7970m threads? how come this question is asked and answered 10 times a day?

 

I'd argue the 470m (480m could be slower) was that to be honest, considering nvidia have a limited chip pool of defective units they may have to split them any way they can. It certainly no harder to do and its feasable with some history of them doing so.

 

can we at least wait till a real member of this forum has a gtx680m before jumping on the "smash and dash" train?
because as you can clearly see...the 7970m is no where near what the original project numbers are...they are quite a bit higher than expected. that will be true for the 680...but that depends on whos hands it sits in....

 

Let me put it this way, we know the 680 is backend limited (rops) because the 670 is so close. Now you have to clock it down, so even though you are down to 11xx shaders cutting the clocks and rops may cripple performance. However you are using all your 13xx parts in your 670 series. So you save those chips with 11xx shaders and all mem buses intact.

Is this all how it is? Could very well not be, but its not too far fetched either so basically you cant say anything for certain and i would argue even for either being true due to lack of evidence. I felt safe with the 7970m as amd was just going round like before. This time nvidia have never been in this situation before.

You are just going to have to WAIT.

Johnksss my predictions were spot on TYVM.

 

Fascinating. I don't see the 680m being a downclocked gtx670, if it was, it should at least equal the 7970m if not exceed it. The gtx670 is around 25% faster than a gtx580, so if we cut the clocks, we would end up around gtx580 perfomance, which the 7970m only gets when overclocked.

This leads me to believe the 680m will be a downclocked 660 or 660ti. There will be "Ti" model I hear due to the lines immense popularity. Perhaps the 660 will be 192bit and the 660ti will be 256bit. Then a 256bit 660ti/680m would be likely candidate. It is possible since the gtx460 has 192bit and 256bit versions.

So, of we keep the 256bit bus, go from 1344 shaders to 1152, we loose 15% perfomance. Figure another 10-20% loss from downclocking, we get a card with 68-77% of gtx670 performance. If a 670 gets a 3dmark11 GPU score of 9000ish, we can expect this hypothetical 680m to do 6100-6900.

Pure speculation on my part.

 

predictions at what?

 

Core, clocks (ish) and performance.

 

Why is it so hard to believe that the 680M might exceed the 7970Ms performance? 670 draws LESS than the 560 TI which the 580M was based on. They should be able to make a 680M out of it. The yields will certainly improve the longer they wait. Last time I checked, the 670 is still plentyful available in the market anyways right now, so it doesn`t seem they are struggling with getting this amount of cores. But then again, GTX 660 bin is probably much bigger than the 670 bin. And who knows, they might lose less than the calculation under if they go the 660 >>> 680M route.


560TI 3DMark Vantage : 16527 in GPU score
580M 3DMark Vantage: 13296 in GPU score
Loss performance: 19.5%

560TI 3DMark 11: 4640 in GPU score
580M 3DMark 11: 3131 in GPU score
Loss performance: 32.5%

670 3DMark Vantage: 31989 in GPU score
680M 3DMark Vantage: 31989 * 0.805 = 25751 in GPU score
7970M 3DMark Vantage: 21661 in GPU score
GTX 580 3DMark Vantage: 24838 in GPU score

670M 3DMark 11: 8664 in GPU score
680M 3DMark 11: 8664 * 0.675 = 5848 in GPU score
7970M 3DMark 11: 5480 in GPU score
GTX 580 3DMark 11: 5724 in GPU score

680M would score 19% more in 3DMark Vantage and 7% better in 3DMark 11 than 7970M. Average around 13% better than 7970M. Maybe even more since Nvidia have to sacrifice less to make the 680M.

 

we can only hope for it
then the scores would be just around where i wanted them/for me to buy these cards sli setup
minus scaling around 12k+ in 11 and ca45k+ in vantage
this scores would be if they scaled at 90%
and around 10k+ in 11 and ca41k+ in vantage @ 80% scaling

 

I added the desktop GTX 580 just for the lulz. Damn, two of these theoretical 680Ms in SLI would be so sick. Total overkill since that power would be way too big for games that play on our little 1080p screens lol

 

Isn't computex in like 10 days ?

 

Only 6 days until it begins

 

Heaven is near

 

Pitcairn do the good job on laptop platform

 

answers are near

Sent from my GT-I9001 using Tapatalk 2

 

And finally we can put the whole speculation to rest

 

question is, which will overclock higher. just like desktop 7970 vs gtx 680, stock clocks 680 wins most of the time, but both at max overclocks? 7970 takes the crown

 

yes, but as the 7970m has the potencial to perfome like the 7870 overclocked the gtx 680m should have the potencial to perfome like is desktop counterpart overclocked, just like the 6990m and 580m.
if it is based on the gtx670 the amd has no chance.

 

in that case yes, cause a gtx 670 beats the 7870. Ill be pretty impressed if Nvidia can pull this off. AMD would need to counter with a 7990

 

670 doesn`t beat 7870, it completely destroys it

But you are right. God knows how good/bad the 680M will overclock. I personally want a good GPU from the scratch since I don`t plan on overclocking it anyways

 

Hopefully I can use it on my P170HM

 

and in my p150hm

 

Unless 7950M comes out soon or that Nvidia announce a new 80W GPU at Computex, I think I will just say screw it and buy the 680M as well

 

where nvidia fails is price though, if the 675m is alot more than the 7970m, i cant imagine what they will charge for the 680m.

 

I believe that's an Alienware exclusive. Clevo/Sager resellers are typically charging $100 more for the 7970m than the 675m.

I'm sure the 680m will be considerably more expensive though, whether it performs better or not.

 

Today I found a post on PCSpecialist.co.uk forums about their plan to stock the 4GB GTX 680M. This is what they had to say.

 

Today I found a post on PCSpecialist.co.uk forum here about their plan to stock the 4GB GTX 680M. This is what they had to say.

This is what I had to say:

 

The way I see it there are plenty of people dumb enough to get a 675m over a 7970m so they could well sell it for £180 more lol.

 

^ 170£ is quite the price.. but nVIDIA has the privilege to go premium.. even considering the absurd price tag they plan on giving.

Sadly the amount of fanboys this is a must buy and 10% is quite a lot giving you buy two of these. Imagine.

Oh well.. lets see what really happens

Dumb? Are you actually familiar with the differences between the nVIDIA and AMD gaming cards? There's quite the difference if you do specialized work and you cant afford Quadro/x1 x00 cards.

Seriously.. I have no more to comment

 

I don`t know what reseller PCSpecialist is, but our own Sager resellers is quoting July/August for 680M.

The Turkish reseller Monster Notebooks is taking $180/£116 more for the 680M vs the 7970M. UK/European prices have always been LOLworthy to the point of robbery anyways so who knows what the price for 680M over 7970M will be in the US.

And that whole post from PCSpecialist is totally unprofessional if you ask me, telling/hinting to customers what to buy.

I calculated that the 680M will be 13% over 7970M few pages back btw. Awesome to see it confirmed from a reseller. I still think 680M will be anything from 15-20% faster than 7970M btw. Totally worth the $180

 

What I am trying to say is if people are buying a 675m over a 7970m now then people will get 680m over a 7970m even if it costs over £100 more.

 

Agree if built correctly, overclocking is going to be fun

Ahhh exactly, I must have misunderstood you, nVIDIA fanboys or not, they've got quite a reputation

 

There are actually people who just bought a notebook with 675M because of the delay with 7970M and plan to upgrade later. Money is not a problem for some people

I won`t stress my poor new GPU with extra clocks loool. But you brave people have fun