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Pumpkin seeds have many health benefits, some of which include a good source of protein, zinc, and other vitamins, and are even said to lower cholesterol. One gram of pumpkin seed protein contains as much tryptophan as a full glass of milk. Cool aint it. Also pumpkin seeds are a good source of magnesium, manganese, phosphorus, and phytosterols.
Cashew nuts, like all nuts, are an excellent source of protein and fiber. They are rich in mono-unsaturated fat which may help protect the heart. Cashew nuts are also a good source of potassium, B vitamins and folate. They contain useful amounts of magnesium, phosphorous, selenium and copper.
In all they both are on par in terms of nutritional value