A ported barrel is a barrel that has been cut in such a way as to expose the inside of the barrel to the air. This allows some of the gas that is expelled from the barrel to escape and cool down faster. A compensator is a device that is screwed onto the end of the barrel that redirects some of the gas upwards, which counteracts some of the natural recoils of the firearm.
Compensators are generally considered to be more effective than ported barrels because they reduce muzzle rise and felt recoil more effectively. However, ported barrels are also becoming increasingly popular, because they offer several advantages over compensators. For example, ported barrels are typically cheaper than compensators, and they do not require special tools or training to install.
If you are looking for a way to reduce muzzle rise and felt recoil, then either a compensator or a ported barrel may be a good option for you. Ultimately, the decision of which to choose will come down to personal preference and your budget.