intel turbo boost technology monitor utility

#Intel turbo boost technology monitor utility portable

For instance if your max CPU frequency is 4.3 GHz, your clock speed won't go above 2.0 GHz. For example by setting minimum performance to value 9 (0.9 GHz) and maximum performance to value 20 (2.0 GHz) you are telling the processor that you would like to keep your CPU clock frequencies between 0.9 GHz and 2.0 GHz, depending on the workload. The settings described above will tell the processor which performance level you prefer to maintain.

Range of values from 0 (performance preference) to 255 (energy efficiency preference).

Energy performance preference: Energy efficiency preference to influence the rate of performance increase /decrease and the result of the hardware's energy efficiency and performance optimizations.

When set to a non-zero value specifies an explicit performance request hint to the hardware. When set to zero, hardware authomatically determines the performance target.

Desired performance: Will specify desired performance level.

Maximum Allowed performance: Will specify maximum clock frequency that CPU can utilize.

(Minimum possible clock ratio supported by the CPU can be found on CPU information tab)

Minimum allowed performance: Will specify minimum allowed clock frequency for the CPU.

Slider controls described below can be used to specify performance hints for Speed Shift related performance settings: The fact that Performance control indicator is set to Speed Shift will show that performance requirements need to be adjusted using the Speed Shift tab on Advanced CPU settings form, while Legacy setting indicates that performance can still be controlled on the main form by modifying Turbo boost and Frequency scaling sliders.

If Speed Shift performance control is active, by clicking on SpeedShift link you'll be taken to Speed Shift control tab on Advanced CPU settings form. On the main application form you can observe Performance control indicator which will show two states Speed Shift or Legacy. While Speed Shift is relying on the CPU hardware, it still takes performance hints (performance settings) which includes minimum, maximum and desired performance limits from the operating system or the user in order to maintain specific level of system responsiveness. However, if it's not enabled by the OS or the BIOS and still supported by the CPU itself, the application can manually enable Speed Shift feature which will be disabled again on system restart or deep sleep.

If Speed Shift is enabled by default on the BIOS or OS kernel level it cannot be turned off by the application. NOTE: Currently user defined Speed Shift settings will be reset back to the default on system restart or deep sleep. With Speed Shift enabled, CPU takes over the responsibility of frequency control, which will be done on a hardware level by the CPU itself, this’ll allow much faster p-state transitions and can drastically reduce latency during the process of p-state selection. Starting with CPU codename Skylake, the problem with performance control adjustment was addressed with Speed Shift (Hardware Controlled Performance) also known as Intel HWP (Hardware p-states).

#Intel turbo boost technology monitor utility portable

However, this will can reduce the battery life for portable devices, increase power consumption, and thermal output. One can certainly avoid this problem altogether by selecting for instance, maximum performance. The problem with this approach is the level of latency that is added to the performance adjustment process, which slightly reduces overall performance as a result. In order to receive performance hints (p-states) and adjust performance according to the operating system, application or user needs, processors prior to Skylake model are relying on the operating system. Intel Speed Shift technology also known as HWP (Hardware p-state) or Hardware Controlled Performance delivers quicker responsiveness with short duration performance shifts, by allowing the processor to more quickly select its best operating frequency and voltage for optimal performance and power efficiency.įor performance, efficiency and power consumption reasons, modern processors are constantly changing clock frequency and voltage based on the workload.