- Forum: Current Mac Hardware
What most people seem to miss regarding built-in RAM, is this. When all the available memory is used, the operating system starts paging out. With a common spinning hard drive, this causes a significant slowdown of the system. But with today's SSD in the MBA, the impact on system responsiveness is limited and likely to go unnoticed by the average user. Apple knows this very well, this is why they offer the minimum they can in system memory.