There are three OptiFine versions: · OptiFine Ultra · OptiFIne Standard · OptiFIne Light Ultra has the most options for optimization, while Standard is the middle ground. Light is better for laptops with lower hardware specs but has fewer features and doesn’t work with Forge or Modloader. For most situations, Ultra is the way to go due to its many advanced settings. It works with all computers, and you can run it alongside other mods. Standard is a decent choice if you only want a smaller boost than what Ultra can offer.