Just got my Classified 780 in today. I've been benching for almost 5 hours straight. Still working up to my max OC's but I'm tired so I'm going to bed and will resume in the morning. Just thought I would say hello and share where I am.
My card arrived with the 3A BIOS so it likely has Elpida memory based on what I've read but I haven't made an effort to remove the stock TIM or heatplate to see what memory modules are under there. I will say I was pretty bummed about it since I've heard all these rumors about how bad the Elipda memory was compared to Samsung, but I can report that so far my memory OC's are 100% stable at 7200MHz through the following benches, 3DMark13, 3DMark11, 3DMark Vantage, Crysis Warhead benchmark, Heaven and Valley, GRID 2 benchmark, Metro 2033 and Metro Last Light benchmarks. All of these were run at 2560x1600 4xAA except Metro Last Light which is using the default AA since SSAA is a slideshow. My core boost clock was 1150MHz stock at 1.162v. Using the Classy GTX Overclocking Tool at 1.20v, my current 100% stable boost clock is 1241MHz using all of the same benchmarks I listed above.
I really don't understand why so many people are hung up on running the Valley benchmark since its clearly not very demanding and will allow some pretty unstable clock speeds in comparison to the other benches I listed. Is it for bragging rights? Because to me, claiming that my core boost overclock is stable at 1300MHz+ in Valley which mine will do at 1.20v but will only do 1241MHz in other benchmarks isn't really what I would call 100% stable at 1300MHz. I've read damn near every page of this thread on my smart phone while running all these benches today and it seems everyone keeps talking about their Valley benchmark numbers and I just don't see the value in it. I'm not trying to start a flame war but I can't really compare my stable OC's to most others in this thread because apparently I do much more exhaustive testing when checking for stability than many others do.
I will follow-up in the morning with more numbers and hopefully my final 100% stable OC numbers, but I thought some would be excited to know that if I'm actually using Elpida memory, then its not nearly as bad as some made it out to be, or maybe I just got lucky. Time will tell.
Edited by Blkout2k1 - 8/15/13 at 8:45pm