This detailed iPad chip list covers what A or M-series chip Apple has put in each iPad model from the newest to the original iPad.
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iPad - Wikipedia
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Apple's 2022 lineup reportedly includes a rugged Watch and iPad
RAVPower Wireless Chargers for 2022 iPad Pro
iPad - Wikipedia
3nm chip to faster 5G: What analysts expect from Apple iPhone 16
2021 iPad Pro will need iPadOS 15 to unleash its full potential
New iPad, iPad Air, and iPad mini reportedly to launch in the next