I have EVGA 780 Classified ACX and my memory is OC very bad. It's only good thing because card boost over 1130MHz. Disapointed too with different batches. I never both something in life where best possible card series have different memory inside. Yes I know many manufacturer install in cheaper and stock models some kind of hardware and memory and in expensive models something other, better. That's OK, but one group in highest class to get one and other group something other, I never saw that in life before this and for me that is disgusting move even if 2-3 weeks no shipment until new memory arrived.