I searched and couldn't find any good info about this. I'm going to be upgrading soon, and if the non-reference R9 290/290X's turn out to be poor overclockers I will almost certainly go with a 780. My first question is which 780's are known to have the B1 stepping, and does it really make a difference? I'm hearing mixed things about whether or not it has an impact on overclockability/heat/power. My second question is which 780's are known to have Samsung/Hynix memory? The 780 Classified was my first choice for a 780 until I found out they shipped with Elpida memory. I'm not going pay a >$50 premium for a card built for overclocking with memory that doesn't OC. My third, and most important question is are there any 780's that have BOTH? On a side note, I was thinking of a 780Ti if the 290's don't pan out. I have the money for it, and wouldn't mind paying ~$750 IF the card had more ram. If I spend that kind of dough on a card it would have to last me 2-3+ years. When I got my GTX 670 a year and a half ago everybody was saying how 2GB Vram was enough even for 1440p. It didn't take long for me to regret not getting a 7970 or a 4GB 670. I'm sure 3GB of ram will be plenty in the mean time, but it didn't take long for 2GB to go from plenty to not enough.