Can I ask if anybody can explain why a brand new iPad mini 128Gb Retina and a 3 year old iPad 3 64Gb Retina, memories should be so different? On both I have an App called Memory+Manager which when you press 'start' completes a diagnostic, it breaks down the diagnostic to: Free Memory, wired, active, inactive. Both devices are running iOS 8 and start with 1024 Mb. Here is the comparisons: Mini. IPad 3 Free 346.6 Mb 38%. 624.6Mb 75.6% Wired 158.8 Mb 17.4%. 115.3Mb 13.9% Active 410.1Mb 47%. 70.7Mb 8.6% Inactive 0 0%. 15.9Mb 1.9% I would have thought with a faster insides it would be more efficient - or am I reading this wrongly?