Overall score includes:

Pureeing, crushing, chopping, green smoothie, blending kale (60%) – regular blenders.
Pureeing, crushing, chopping, green smoothie, blending kale, nut butter, sorbet (60%) – super blenders.
Ease of use (40%)

For our tests we pureed soft frozen fruit (some older models pureed soup), crushed ice and chopped carrots. We made a green smoothie (a combination of English spinach, pear, kiwifruit, cucumber, mint, celery and water) and blended kale. For super blenders we also made nut butter, sorbet from frozen fruit, dough and almond meal, and grated parmesan. In the latest batch of super blenders we made hot soup from raw ingredients. The dough, parmesan, dry milling and soup scores don’t contribute to the overall score. We measured noise blending kale on the highest setting.