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The first "proper" Kepler news Fri 17th Feb?
- Thread starter dave_beast
- Start date
Dunno, it came from here;
http://wccftech.com/nvidia-geforce-kepler-roadmap-leaked-technical-specs-release-dates-detailed/
Caporegime
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This is another post from the HC reviewer on XS:
http://www.xtremesystems.org/forums...orce-GTX-780&p=5069322&viewfull=1#post5069322
So,maybe the 25% improvement in games performance over an HD7970 3GB mentioned earlier in that thread is true?? He seems to be hinting this.
It would make the GTX680 around 36% faster(as I suggested earlier if HC review figures are used) than a GTX580.
Edit!!
He mentions the following:
"AMD is currently grappling with the heat, power consumption and die space (albeit at on a more efficient process technology) restrictions that NVIDIA went through with Fermi. "
I wonder if he has considered the HD7800 series against the HD7900 series though as the former seems more efficient relative to its performance:
http://tpucdn.com/reviews/AMD/HD_7850_HD_7870/images/perfwatt_1920.gif
http://www.techpowerup.com/reviews/AMD/HD_7850_HD_7870/27.html
http://www.xtremesystems.org/forums...orce-GTX-780&p=5069322&viewfull=1#post5069322
So,maybe the 25% improvement in games performance over an HD7970 3GB mentioned earlier in that thread is true?? He seems to be hinting this.
It would make the GTX680 around 36% faster(as I suggested earlier if HC review figures are used) than a GTX580.
Edit!!
He mentions the following:
"AMD is currently grappling with the heat, power consumption and die space (albeit at on a more efficient process technology) restrictions that NVIDIA went through with Fermi. "
I wonder if he has considered the HD7800 series against the HD7900 series though as the former seems more efficient relative to its performance:
http://tpucdn.com/reviews/AMD/HD_7850_HD_7870/images/perfwatt_1920.gif
http://www.techpowerup.com/reviews/AMD/HD_7850_HD_7870/27.html
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Soldato
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If it really does sell for the same price as the 7900 series then AMD won't be able to keep their pricing the same that's for sure.
It's all well and good saying it's faster but what applications are they using? What games and what settings also what resolutions.
If they do have a stonker of a card that beats the 7970 by 25% they would price accordingly or is price matching they're way of winning this quarter?
If they do have a stonker of a card that beats the 7970 by 25% they would price accordingly or is price matching they're way of winning this quarter?
Soldato
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Can wait for the card to be released. Only to see how many change their views on pricing.
I'd be suprised if its 25% faster than a 7970 from what I can see they've essentially clockbooster what would have been the upper mid-range part by 25% which at best would put it around 15% faster on average (also means your probably looking at about 5-7% realworld gains from overclocking tops ( not the MHz % overclock)).
This is also a factor to be considered. The 7970/50 clock very well and can't remember the boost it gives from stock? (maybe 15% but dont quote me).
Anyways, if the 680 has been pushed on stock, it will be interesting to see if the OC on this is any good, or just negligible. This for me holds the key.
I dont mind if it is on par with the 7970 and clocks like the 7970 and they charge the same as the 7970 (Gibbo hinted at this).
Purely for my laziness I will get one. (saves me having to swap out drivers etc etc)
Caporegime
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It's all well and good saying it's faster but what applications are they using? What games and what settings also what resolutions.
If they do have a stonker of a card that beats the 7970 by 25% they would price accordingly or is price matching they're way of winning this quarter?
What I find strange is the chap from HC says AMD as a whole is struggling with power consumption and heat this generation??
The HD7870 is 25% more efficient than an HD7970 at 1920X1080 and twice as efficient as the HD6970. Is the GTX660TI going to have HD7870 or HD7950 level performance using a single PCI-E power connector or something along those lines??
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Yeah I didn't get that either.
For a brand new architecture it's doing a lot better than Fermi did when it reared it's ugly head.
So when they come up with a revised version of GCN, it will be (as he says) 2nd generation and rather good.
The 7870 is a really good looking card, I didn't expect it to perform that well.
Edit - If the 660Ti is as efficient as the 7870 it would be great competition and much much cheaper than their flagships and earn both companies a lot of sales.
For a brand new architecture it's doing a lot better than Fermi did when it reared it's ugly head.
So when they come up with a revised version of GCN, it will be (as he says) 2nd generation and rather good.
The 7870 is a really good looking card, I didn't expect it to perform that well.
Edit - If the 660Ti is as efficient as the 7870 it would be great competition and much much cheaper than their flagships and earn both companies a lot of sales.
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I would wait for a while though and see what pans out. Well, at least for the overclocks as they may not have left any room in the tank.
Price to performance though it will be about right, they always are. So I guess it just depends on whether you need that much power or think it's good value
I have every confidence that you won't be one of those who buys it and then whines about it being a rip off or a con like some others
Caporegime
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True,but also consider the relative performance of the HD7870 when compared to the HD7970 and HD7950 at 1920X1080,considering that Tahiti has 54% more transistors than Pitcairn and has a 72% larger surface area for the GPU die.Even though it seems the GK104 will be much faster it will be interesting to compare these two GPU too and not only the GK104 and Tahiti.
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Don't quote me but I believe the 7870 is a 7970 with the GPGPU capabilities stripped down.
I think anandtech covered that and I'm just repeating them.
Edit - If the 7870 does truly come out at $350 then GK104 won't just be competing with the 7950/70, they'll be fighting against the 7870 as you say. It really shines at 1920x1080 and I was very very surprised to see it perform as well as the 7950.
A bit of an over-simplification, but not too far away from the truth really... Pitcairn also has quite a few less shaders (1280 vs 2048). Given the huge difference in size, Pitcairn is really quite impressive in terms of performance. Tahiti has 60% more shaders, but rarely performs close to 60% faster than a 7870. The 6870 -> 7870 performance jump is certainly more in line with what I was expecting to see from 28nm...
When you look at the transistor densities for Pitcairn vs Tahiti (13.2M vs 11.8M) it suggests that it's the GPU compute features which take up the majority of the die size (or at least, which require the larger spacing between transistors). Perhaps we will see the same from Nvidia; a significantly poorer transistor density from GK110, with only a modest performance increase (compared to the 50% increase in shader count; 2304 vs 1536). That would be something of a shame, but not entirely surprising.
