My idea is generally opposite. 100F's SOC4 combines NP6xlite and CP9xlite. More integration generally means higher performance. But the number on the datasheets are about the same. So I would trust those numbers.
Then I wouldn't consider changing from FG200E now as long as it's working fine or no major org changse in sight since it still has long life, maybe until "G" series hardware comes out.
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