AdSense: Two new bigger sizes 970 x 250 Billboard and 300 x 1050 Portrait, make more money ?

Recently Google introduced two big AD sizes for ADsense, the 970 x 250 Billboard and 300 x 1050 Portrait. Google said "they can show similar-sized image ads when doing so will maximize the performance of your ad unit. " Does not mean you can make more money ?
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