By load i mean how many grams of carbs, not it's glycemic rating. Their glycemic rationg is almost identical. However, the amount of carbs varies depending on where i look. I read one source theat says sweet potatoes pack 35 grams per 3 oz, and yams 19 per 3 oz.
I have read other places that it's 15g for 2 ounces of yam.
On the label of the microwavable sweet potatoe it says 33g per 4 ounces. So this means they are the about the same.
Of course, then it also depends how you cook them.
I boil my yams, and microwave the sweet potatoes.
It's just a bit confusing whe trying to calculate my carb intake.