> >>You're missing my point... >> >>The original table shows that a card that is capable of >write >>speeds faster than the camera can handle will still be >written >>to faster than a slower card would. You can't exceed the >>camera's maximum write speed with either, but the >>"over-specced" card will probably get you >closer. >> >>You won't get a simple answer to your question unless >someone >>tests every type of card with each type of camera. > >I guess I'm still lost then. > >Let's say, for the sake of the discussion, the D600 can write >at 50Mbps. A card that is capable of 45Mbps input should slow >the camera down to 45. But using a 60, 80, 95, 115, or even a >mythical 20,000,000 Mbps card would still slog along at >50Mbps. > >Or did I miss something in math class? >
The thing is though that I/O chip is rated at 50 we still don't know how its clocked (over/under), what the firmware is telling it to do, and if there's other factors limiting its performance. I personally went with a Lexar 400x since I figured the Extreme Pro was overkill at 95. See the card ratings are so misleading too, they do not normally publish the write speeds and when they do sometimes they do not represent real word data. I'd say get a card slightly over the 50mb rating just to be on the safe side that the card is not the limiting factor.