The main difference between Omaha and Hold'em is the number of hole cards each player receives at the beginning of the game. In Texas Holdem, each player receives two cards. There are four in Omaha. That is, getting a good hand in Omaha is much easier. The seniority of the combinations is also the same, Royal Flush is the highest combination in both Omaha and Hold'em. In Omaha, we must use two hole cards. In both Omaha and Hold'em, any hand is a combination of 5 cards. That is, a combination of pocket and community cards. But in Hold'em and Omaha, hole cards are used differently to build a 5-card combination. The betting structure is still one of the reasons why Hold'em is still more popular than Omaha; most people like the no-limit format of the Hold'em game.