It's all relative! A combination of both would be just fine though. With some smith machines having a slight angle that might buffer off the value of some of the weight, but don't let the numbers get to you so much, just go on the rep range.
There are benefits and drawbacks to both freeweights and machine weights. With machine weights you get good isolation on the muscle and more weight, so more overload, but you don't work out other muscles. With free weights you work out more muscles but at a usually lower weight. Its not something to worry about too much though, a healthy combination of both is the best option for bodybuilding.
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