It's mainly the very high temperatures that are responsible. Tortilla chips tend to have less than fries or potato chips.
Acrylamide in Foods: Micrograms per Serving
Water, 8 oz., EPA limit 0.12
Boiled Potatoes, 4 oz. < 3
Old El Paso Taco Shells, 3, 1.1oz. 1
Ore Ida French Fries (from package), 3 oz. 5
Ore Ida French Fries (baked), 3 oz. 28
Honey Nut Cheerios, 1 oz. 6
Cheerios, 1 oz. 7
Tostitos Tortilla Chips, 1 oz. 3
Fritos Corn Chips, 1 oz. 11
Pringles Potato Crisps, 1 oz. 25
Wendy’s French Fries, Biggie, 5.5 oz. 39
KFC Potato Wedges, Jumbo, 6.2 oz. (est.) 52
Burger King French Fries, large, 5.5 oz. 57
McDonald’s French Fries, large, 6 oz. 72