03-21-2015, 01:46 PM
(03-19-2015, 03:24 PM)Picao84 Wrote: That is totally not true. I never changed any goal posts. My point was always about DP.
See the following post on the old forums, still available ( I tried to copy the link but did not find it):
I even said it was a very intelligent move on their part, so take back your claims about AMD bla bla bla.
I even said that the rumored performance, 6,07 TFlops was lower than what I was expecting. So no, you cannot say that I expected less Single Precison performance, or that I don't know the difference between them!!
I was correct in my original claims. Looks like you just have poor memory!
My debate with Gstandford IS about the physical limitation on GM200, something that he continues to say its not true! I never said that GK110 on GeForce GTX780Ti was not artificially limited or hardwired (when I said they were fused, I was leading him into a trap.. from the moment he says it is software based he had to understand that if GM200 does not have more than 4 FP64 per SM... he had to understand GM200 is not artificially limited - guess he didn't connect the dots). Of course it is! I even showed the difference between them in active cores (960 vs 90). What you don't seem to understand is that the DP rate is not some internal clock. Its related to the amount of enabled FP64 units (software or otherwise its irrelevant, if the units are not there, there is nothing you can do). Gstanford seems to believe that nVIDIA can, if they want, enable DP rates higher than 1:32 on GM200. They cant! This conversation is all around that. Its silly!
Honestly, I'm out of this forum. There is a pack mentality here that if someone does not share the same vision, they are hunted and accused, directly or indirectly, of being pro AMD. This forum lacks rationality and free thinking. It is even worse than other places you like to bad name. At least on Beyond 3D its possible to have educated discussions and really learn with other people. I have no idea what BTR is, and I certainly started to dislike and distrust Appopin, but you guys... are not any better. Just look at yourselves in the mirror. Your self image might not be who you think you are. Over and out.
There is no reason for you to get so over dramatic. I openly stated I was wrong in my expectations for the DP performance of the GM200. I clearly have no problem admitting that much. But when i challenged you to explain how the GK110 can have a software switch from gk104 like DP ratio to the 1/3rd ratio of the original titan, you get all crazy.
I have no idea what your talking about when you say your being hunted for being pro AMD. Do W-H-A-T-?
That is when i realized maybe you are really are completely irrational.
I could be wrong though. And i wont have an issue admitting it.........I actually hope that i am. I thought you were an alright guy that has strong beliefs and will fight for them. But really, your getting crazy and worked up with a lot of stuff that is 100% all in your head.
For starters, I am not on gstanfords side on this at all. The DP performance of the GM200 is limited. I conceded, I see that.
But that doesnt mean you were correct about the clock rate. Because obviously, the gk110 had some way of switching between the 1/24 rate and the 1/3 rate. This doesnt mean that the gm200 can increase its DP clock/rato. But you originally claimed that DP was a result of the hardware physical FP64 units and there was no such clock or timing. There obviously is a way with the gk110.
My personal feeling is that the special ability to increase the clock/timing on kepler was special and only the gk110 had this ability. That is couldnt be done with the gk104. But that is my guess. But with that, i imagine that the gm200 is missing that ability as well. Perhaps this takes up much needed space in the die.
So it is not that i ever challenged the DP rate of the gm200. I believe it is and always will be 1/32. It is just that you must also see that there is some special way the gk110 can go from 1/24 to 1/3. That perhaps there is something you can learn more about this. Perhaps your assertion that gstanford "doesnt know what he is talking about" is way to harsh. Because obviously there is more to this. And i think that is why you got so angry.
Have no idea why you would go off like that. There was only one person claiming GM200 can do more that 1/32 DP and that was Gstan. No one else here is challenging that. Every body else believes you, they believe that the gm200 is as DP limited as the gm204.
I just wanted you to think further into it. To realize that there is some way of changing the rate with a gk110 and it is no a hardwired/fixed result.
I also dont think you made up that the 780ti had fused off DP in each SM just to lead him into a trap. I think you mistakingly thought that is how it worked and then you try to twist your statement into something else. It is alright, i had no idea how nvidia cut back DP ratios with kepler. There are probably very few people that do know how it works. It is okay if your not 100% right, all of the time. dont get mad.
But i do believe you on the GM200. I believe it is limited to 1/32 and cannot be changed like the gk110 can. But it is obvious there is some sort of clocking/timing/ or multipliers at work in big keplers DP capabilities.