Power Limit
A configurable cap on how many watts a GPU is allowed to draw, used to trade a small amount of hashrate for significant power savings.
A power limit is a percentage- or watt-based cap you set on a GPU through software such as MSI Afterburner or the AMD driver, restricting the maximum power the card is allowed to pull. For Malairte mining, setting a power limit between 70 and 80 percent of the card's stock value typically reduces electricity draw substantially while only marginally lowering hashrate. The net result is better efficiency, lower temperatures, less fan noise, and longer hardware life. Power limiting is one of the single most useful tuning steps a home miner can do, and unlike core or memory overclocks, it carries effectively no risk of crashes or data corruption.