Does bore size and stroke size are important when comparing bike? Inte

Does bore size and stroke size are important when comparing bike?
Interceptor 650 has 78 mm bore and 67.8 mm stoke
Duke 390 has 89 mm bore and 64 mm stroke
Aprilia Rs457 has 69 mm bore and 61.1 mm stroke

Can you tell me what does it mean and does having a bigger bore and stroke makes more powerful?

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