If you have them, why don’t you just weigh them?
Also, they are 1510g (NEW!! CL vs CLX Rapide differences ( Specialized Roval clx Rapide) *Weights!* - YouTube).
Aero wheels are basically always faster. 150g or even 250g on wheels is negligible unless you want a bike to flex on the weight weenies or you are at a point of your physique, where loosing 250g of body weight severely lowers your performance.
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