What surprised me was that this entire walk is fully hardware-driven -- no microcode involvement at all. The state machine reads the page directory entry, reads the page table entry, checks permissions, and writes back the Accessed and Dirty bits, all autonomously. Since it's hardware-driven, it runs in parallel with the microcode and needs its own memory bus arbitration -- the paging unit must share the bus with both data accesses from the microcode and prefetch requests from the instruction queue.
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Unsurprisingly, charging speeds and battery life also differ. The 17E supports MagSafe charging with Qi2 support, allowing for wireless charging at up to 15W, while the iPhone 17, iPhone Air, and both Pro models support faster 25W wireless charging. Apple says the 17E can charge up to 50 percent in 30 minutes, compared to about 20 minutes for the higher-end models. Battery life increases as you move up the lineup, with the 17E rated for up to 26 hours of video playback, while the iPhone Air and the larger Pro Max models last longer (up to 39 hours, in some instances).