Kindly refer to the documents which portrays exactly the difference between the Arm architecture Armv7 to Armv8.
At least the overview of the changes in terms of advantages and disadvantages
Can you please upload the actual slides ?
I answered the same question in other thread, https://community.arm.com/cn/f/discussions/2471/armv7-armv8
The pictures are clear if you click them.
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