System Add or Remove "Processor performance boost mode" in Power Options on Windows 11

• Disabled = Don't select target frequencies above maximum frequency. In this mode, processor boosting is effectively turned off. The CPU will avoid entering turbo or boost frequencies and instead operate closer to its base frequency ceiling. This can significantly reduce power consumption and heat output, but at the cost of reduced burst performance and responsiveness in short workloads.
• Enabled = Select target frequencies above maximum frequency. This is the standard behavior where boost functionality is allowed under normal conditions. The processor can opportunistically increase frequency when workload demands it, balancing performance gains with power and thermal constraints as managed by the system.
• Aggressive (Default) = Always select the highest possible target frequency above nominal frequency. Aggressive mode favors performance more heavily, allowing the CPU to enter higher boost states more readily and sustain them longer. This should in theory improve responsiveness under bursty or heavy workloads but increases power draw and thermal output compared to the default enabled behavior.
• Efficient Enabled = Select target frequencies above maximum frequency if hardware supports doing so efficiently. This mode still allows boosting, but with a stronger bias toward energy efficiency. The system attempts to use boost more selectively, avoiding unnecessary frequency spikes when the performance gain is marginal.
• Efficient Aggressive = Always select the highest possible target frequency above nominal frequency if hardware supports doing so efficiently. This is a hybrid approach where boost is still performance-responsive, but the system continuously weighs efficiency more heavily than in Aggressive mode. It aims to deliver noticeable performance improvements while reducing wasted power in less demanding scenarios.
• Aggressive At Guaranteed = Always select the highest possible target frequency above guaranteed frequency.
• Efficient Aggressive AT Guaranteed = Always select the highest possible target frequency above guaranteed frequency if hardware supports doing so efficiently.

PERFBOOSTMODE

PERFBOOSTMODE determines how processors select a performance level when current operating conditions allow for boosting performance above the nominal level.

learn.microsoft.com

Overview about power and performance tuning for the Windows Server

Overview about Processor Power Management (PPM) tuning for the Windows Server.

learn.microsoft.com

You must me signed in as an administrator to add or remove "Processor performance boost mode" in Power Options.

This is the default setting.