Royal Flush
A-K-Q-J-10 of the same suit. It is a straight flush by definition, but as the highest-ranking straight flush possible, it has earned its own name. The royal flush beats all other hands in Poker without wild cards.

Straight Flush
Five cards in sequence in the same suit. A straight flush beats four of a kind or any lower hand. If two straight flushes compete, the hand with the highest-ranking cards in the flush sequence wins. For example, 6-5-4-3-2 beats 5-4-3-2-A, and Q-J-10-9-8 beats J-10-9-8-7.

Four of a Kind
Any four cards of the same rank. If two players have four of a kind, the hand with the four higher cards wins. Four of a kind beats a full house or any lower hand.

Full House
Three of a kind and one pair. The full house with the highest-ranking three of a kind wins against another full house. Full house beats a flush or any lower hand.

Flush
A hand of any five cards all of the same suit. If two flushes compete, the flush with the highest-ranking card wins. If the highest cards from each player’s hand tie, the next-highest-ranking card determines the winner, and so on. A flush beats a straight or any lower hand.

Straight
A hand of any five cards in sequence, but not of the same suit. The straight with the highest-ranking cards at the head of the sequence wins against another straight hand. The highest possible straight is A-K-Q-J-10. The lowest possible straight is 5-4-3-2-A. A straight beats three of a kind or any lower hand.

Three of a Kind
Three cards of the same rank, such as three 8s. The highest-ranking three cards wins against another three of a kind hand. Three aces are the highest; three 2s the lowest. Three of a kind beats two pair or any lower hand.

Two Pair
Two cards of the same rank, and two matching cards of any other rank. The hand with the highest-ranking pair wins against another hand of two pair. If the highest-ranking pair ties, the hand with the second highest-ranking pair wins. If the pairs in both hands tie, the hand with the highest-ranking fifth card wins. Two pair beats any hand with one pair, or no pair (high card).

One Pair
Any two cards of the same rank. The hand with the highest-ranking pair wins against another hand of one pair. If both hands have the same pair, the highest-ranking unmatched card in the hand determines the winner. If the highest-ranking unmatched cards tie, the next highest-ranking unmatched cards are compared, and so on. One pair beats any hand with no pair (high card).

High Card
A hand with no matched cards. With two competing high card hands, the hand with the highest-ranking card wins. If the highest-ranking unmatched cards tie, the next highest-ranking unmatched cards are compared, and so on.

Handrank Graphics courtesy Of PartyPoker.com