Does four of a kind beat two pair?
Yes. Four of a kind beats two pair in poker — every time. In the ranking of 10 hand categories, four of a kind is #3 and two pair is #8. Categories are compared first: even quad deuces beats aces and kings — the category always decides first.
Four cards of the same rank ("quads").
Two different pairs.
How rare is each hand?
Rarity is exactly why the order is what it is. Out of 2,598,960 possible five-card hands, four of a kind shows up in 0.024% of them (624 combinations), while two pair appears in 4.75% (123,552 combinations). The harder a hand is to make, the higher it ranks.
Does two pair ever beat four of a kind?
No — never. The category comparison is absolute: the highest possible two pair still loses to the lowest possible four of a kind. Ranks inside a category only matter when both players hold the same category.
Prove it to yourself
Which hand wins? Tap it.