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[VC] NVIDIA GeForce GTX 780 OpenCL Performance Unveiled - Page 3

post #21 of 38
The SP and DP compute of GK110 is actually decent, so its down to optimizations fro OpenCL.

GTX Titan pushes 4.5 GFlops SP and about 1 TFlop DP

HD7970GE 4.3 TFLOPS Single Precision compute power , 1.01 TFLOPS Double Precision compute power

The GTX 780 should be more towards 255K-265K on that benchmark though, if the rumored specs of 80-85% of TITAN's SP/TMUs/ROPs is true and that 4TFlops slide is also true.

Right now numbers on that charts suggest it it is ~70% of TITAN...

let's say it's currently rumored 4TFlops is true, taking into account the 3% increase in clock speed (863/876 or 902/876 for Boost) then :
GTX 780/ (TITAN OCed to GTX 780) = 4Tflop/(1.03*4.5Tflop) = 86% of TITAN
Edited by AlphaC - 5/18/13 at 6:00pm
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post #22 of 38
That is why 780 will be significant less expensive than a Titan. If the 780 has almost the same of Titan computer power, then it will be $800+.
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post #23 of 38
Quote:
Originally Posted by jomama22 View Post

"For those of you who have kept an eye on Titan, these are the same specs as the GPUs Titan, and though NVIDIA would not name it at the time we can now confirm that Titan is in fact composed of K20X GPUs and not K20."

http://www.anandtech.com/show/6446/nvidia-launches-tesla-k20-k20x-gk110-arrives-at-last

I forgot the x, my bad. It is the same chip as titan with 1 less smx and 3 less memory controllers. Seriously, this is the second time someone has corrected you.
You are still wrong. Look at the price of the K20X on there.

The Titan is a GK110, it is not the same gpu as the K20 anything, there are a few omitted features.

The K20 is what they used in the big super computer, the K20X has the same core count as the GK110 (the one in the Titan that is), but it is a full on compute card. The GK110 is a K20X with most of the non-gaming stuff chopped out.

And that is the second time I have corrected you.
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post #24 of 38
Quote:
Originally Posted by jincuteguy View Post

That is why 780 will be significant less expensive than a Titan. If the 780 has almost the same of Titan computer power, then it will be $800+.

if we were basing value on compute power, the 7970 should cost more. Unless you are operating with cuda, gtx 6xx and up are not worth it compared to amd's offerings.
     
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post #25 of 38
Quote:
Originally Posted by Masta Squidge View Post

You are still wrong. Look at the price of the K20X on there.

The Titan is a GK110, it is not the same gpu as the K20 anything, there are a few omitted features.

The K20 is what they used in the big super computer, the K20X has the same core count as the GK110 (the one in the Titan that is), but it is a full on compute card. The GK110 is a K20X with most of the non-gaming stuff chopped out.

And that is the second time I have corrected you.

Right. so its a k20x with things cut off....like i just said and said before (because i forgot the x). So....what? That's like trying to call the 3820 not the same chip as a 3930k because it has 2 core cut out and less l2 cache.

2 names, 1 chip, binned for different products.
     
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post #26 of 38
And technically, the GK110 at its base level is the full version of that chip, with all its compute and gaming features intact. The K20 whatever version is what they are sticking in the compute cards, and the Titan's GPU retains the GK110 moniker, albeit with several features missing.
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post #27 of 38
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post #28 of 38
Quote:
Originally Posted by jomama22 View Post

Right. so its a k20x with things cut off....like i just said and said before (because i forgot the x). So....what? That's like trying to call the 3820 not the same chip as a 3930k because it has 2 core cut out and less l2 cache.

2 names, 1 chip, binned for different products.
It has nothing to do with whether or not you forgot the X, the application and features are different.

"Same thing, but different". Right.

They have a different name because they have ENTIRELY different applications. The chip in the Titan is not a K20 anything whatsoever because the features that make it what it is, are not present.
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post #29 of 38
Quote:
Originally Posted by jincuteguy View Post

That is why 780 will be significant less expensive than a Titan. If the 780 has almost the same of Titan computer power, then it will be $800+.

Great point. I was thinking the same thing myself. for those that aren't interested much in compute performance and are mostly concentrating on the lowest price possible, this may be a good sign. I know that there are times when it helps in games, but if this cripple means it costs $400 less than Titan, I think they'll deal with it.
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post #30 of 38
Quote:
Originally Posted by Masta Squidge View Post

It has nothing to do with whether or not you forgot the X, the application and features are different.

"Same thing, but different". Right.

They have a different name because they have ENTIRELY different applications. The chip in the Titan is not a K20 anything whatsoever because the features that make it what it is, are not present.

OK....and as i said, its the same piece of silicon no? Just answer me that. Does it come from the same platter as "k20x" or not. If it does, it is the same chip, different name...as i said before.
     
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