With Apple’s A7 chip support 64-bit architecture having come to the iPhone 5s, it had to come to the iPad Air too. This leads to a significant improvement in performance. The iPad Air is superfast even when it has high resolutions to handle. It rendered heavy graphic games and HD video playback without any lag. I hated the iOS 7 on my iPhone 4 and third generation iPad. But with the A7 chip it works beautifully.