This document provides information on the options offered by Radeon™ WattMan, which allows you to customize the performance of the graphics card (GPU).

Radeon WattMan overview

Radeon WattMan was first introduced in Radeon™ Software Crimson Edition 16.6.2. This utility allows you to tune the performance and monitor the behavior of the GPU, and thus adjust your gaming experience for different applications.

This document walks you through each step of tuning your GPU using by Radeon Wattman. It is important to note that GPU tuning requires an advanced level of technical knowledge. For the majority of users, the default GPU and graphics memory hardware settings provide the best performance for most applications.

Note When manually overclocking, it is advised to overclock in small increments, then test stability after each tweak. For this, you just need to run your games and applications in 3D as you normally would for a few hours. If the system becomes unstable (for example, if you experience crashes, freezes, and/or graphical corruption), you will need to revert to the last stable settings.

Radeon WattMan Requirements

Radeon WattMan is supported by AMD Radeon R7 260 and above series graphics products. It is recommended to always use the latest compatible driver for your GPU when configuring Radeon WattMan on a Windows® system.

Note

1. Radeon WattMan is not supported neither on APU graphics cards nor on AMD graphics cards pre-installed in OEM systems.
2. Availability of specific Radeon WattMan features depends on the GPU used.

Radeon WattMan Setup

To access Radeon WattMan, open Radeon Settings by right-clicking on your desktop and selecting AMD Radeon Settings.

Click on the Gaming tab.

Click Global Settings.

Click on the Global WattMan tab and read the terms of use. If you agree to these terms, click Accept to continue.

Note THE AMD PRODUCT WARRANTY DOES NOT COVER DAMAGES CAUSED BY OVERCLOCKING, EVEN WHEN IT IS IS MADE POSSIBLE BY AMD HARDWARE AND/OR SOFTWARE.

After accepting the Terms of Use, you can begin customizing Radeon WattMan settings.

Note In AMD CrossFire™ configurations, Radeon WattMan settings must be applied to each GPU in the system. You can select each GPU by clicking on the GPU tabs highlighted below.

Note If , after configuring the main GPU, the options for the remaining GPUs tabs are disabled (grayed out), you may need to wake up the GPUs. To do this, navigate between the tabs.

The following section describes the options available in Radeon WattMan that allow you to tune and monitor the performance of your GPU. This includes:

• Performance/Watt Profiles
• Settings Control
• Clock Frequency Control
• Control memory frequency
• Memory synchronization
• Voltage control
• Fan and temperature
• Zero RPM

< li>Minimum Acoustic Limit

• Power Limit
• Histogram

Note Global WattMan changes will apply to all 3D applications. If you would like to create an individual Radeon WattMan profile for one or more specific 3D applications, refer to: How to Configure AMD Radeon Settings for Optimal Gaming Experience (URL: https://www.amd.com/ en/support/kb/faq/dh-012). Note Changes made under Global WattMan or an application profile will take effect immediately. Changes to Radeon WattMan settings are only saved by clicking the Apply button, located in the upper right corner of the Radeon WattMan interface.

Performance/Watt Profiles

Radeon WattMan provides four Performance/Watt Profiles that allow you to customize GPU performance and power consumption. This feature is currently supported on Radeon™ RX Vega series graphics cards.

The four performance/Watt profiles are:

• Power Save ( Power Savings
• Balanced
• Turbo
• Custom

Select a power profile Performance/Watt using the slider and click Apply.

Note Performance/Watt profiles are only supported on Radeon™ RX Vega graphics cards.

Settings Control

Settings Control is available when using the Custom Performance/Watt Profile and offers the following options:

• Manual
• Auto Undervolt GPU
• Auto Overclock GPU
• Auto Overclock Memory

Select a settings control profile, read the warning message, click Continue to apply the profile or Cancel to return to the previous menu.

Note Adjustment control is only t supported on Radeon™ RX Vega series graphics cards.

Clock Rate Control

Radeon WattMan allows you to customize seven GPU performance clock states, which are defined by clock speeds and unique voltages. Using Clock Frequency Control, you can configure each of these seven states to your personal preference.

• Clock State 0 is the power state the lowest and cannot be changed.
• Clock state 7 is the highest GPU clock state and provides the highest performance.



The clock frequency control can be adjusted in various ways. This includes:

1. Simple Frequency Curve Control – Default mode allows changes to be made to all clock states simultaneously. Move the frequency slider right or left to increase or decrease the GPU frequency. This slider will adjust the clock frequency in 0.5% increments.

   

2. Dynamic frequency curve control – The dynamic mode can be adjusted by changing the Frequency option to Dynamic. Dynamic Clock Control allows you to customize each clock state for better performance control.

   Set the desired frequency and click Apply. In this example, the State 7 default base clock for this GPU is 1340 Mhz and has been increased to 1350 Mhz.

   

   Note Increasing the clock frequency may impact stability and require an increase in voltage to stabilize the system. Tension control is covered in the next section of this document.

Memory Frequency Control

Memory Frequency Control uses only one state (State 2). In default mode, adjust the memory frequency in 5Mhz increments using the slider.

Set the desired frequency and click Apply.



Dynamic clock control allows you to manually enter the desired frequency. In this example, the State 1 default base clock for this GPU is 2000 Mhz and has been increased to 2005 Mhz.



Note The Memory Frequency Control is not supported on AMD Radeon Pro Duo, Radeon R9 Fury Series, and Radeon R9 Nano series graphics cards.

Memory synchronization

Memory synchronization reduces memory latency based on the selected level. A lower memory latency level can improve the performance of some applications.



Memory synchronization has three options:

1. Automatic (Automatic) – Default BIOS Timing
2. Memory Timing Level 1
3. Memory Timing Level 2

Click on Memory Timing to move between levels. Click Apply to save changes.



Note Memory synchronization is only available on RX400 series graphics products , RX500 and RX Vega

Voltage control

Voltage control refers to the amount of voltage applied to the GPU at each clock state.

The Voltage control can help stabilize the GPU when increasing clock frequency. This will draw more power and produce more heat, resulting in increased fan speed and noise.

The GPU frequency voltage can be adjusted by selecting the Voltage Control option. voltage) and changing it to Manual. Manual voltage control allows the voltage to be customized for each state of the GPU clock.

Note In manual mode, the best practice is to increase the voltage in small increments, then to test the stability. This is best done by running your usual 3D games and applications at your preferred settings. Note If the adjustments made above cause stability issues, you You can restore the default settings by clicking the Reset button located in the upper right corner. Note The voltages are not shared between the GPU and memory clocks, the two are set independently.

Set the desired voltage and click Apply. In this example, the default voltage for State 7 is 1150 and has been increased to 1175.



Memory voltage control only uses only one state (State 2).

The memory frequency voltage can be adjusted by selecting the Voltage Control option and changing it to Manual. Manual voltage control allows customization of the voltage for Clock State 2.

Set the desired voltage and click Apply. In this example, the default voltage for State 2 is 950 and has been increased to 1000.



Fan and temperature

The speed and fan temperature are automatically managed by your GPU. They will increase or decrease to regulate the temperature depending on the workload.

By default, the Speed/Temperature switch is set to Automatic.



Click the Speed/Temperature switch to enter Manual mode and allow control of fan speed and GPU operating temperatures while running of a 3D application (under load).

Manual mode offers five customizable states along the GPU fan curve. Each state represents the target GPU fan speed and the target GPU temperature. Fan speed is measured in RPM (revolutions per minute). The higher the fan speed, the greater the cooling, which can lead to increased fan noise.

Each point on the curve can be moved up or down to adjust the GPU fan speed, and left or right to set the desired GPU temperature.

Zero RPM

The Zero RPM setting allows quiet operation when the GPU is under light load, and is enabled by default. The GPU fans should spin faster and faster as the GPU is loaded and the temperature increases.

Minimum Acoustic Limit

Minimum Acoustic Limit allows the user to set the base frequency at which the GPU will operate. If the GPU clock frequency (MHz) drops below the value set for the minimum acoustic limit, the fan speed will increase as needed to regulate the GPU temperature so that the base frequency can be maintained.

Power Limit

Power Limit controls the level of power sent to the GPU. Increasing this value can improve GPU performance by allowing it to maintain its highest clock rate (State 7).

The power limit can be increased or decreased by +/- 20-100% and should be set to the maximum value when increasing the GPU or memory clock frequency.

Note The percentage range of the limit of power depends on the GPU you are using.

Histogram

Histogram lets you monitor and capture current, average, and peak data about GPU activity, temperature, fan speed, and power. GPU clock frequency.

Hover the mouse pointer over the graph to view details for a specific time as shown below.



Radeon WattMan Profiles

After achieving an optimal Radeon WattMan configuration, the settings can be saved as a profile.

From Radeon Software Adrenalin Edition, multiple profiles can be created and loaded depending on system usage, for example:

• A profile for high performance gaming with higher power limits and fan speed to maintain higher clock frequencies ed.
• A profile for reducing power consumption and fan speed, to achieve lower temperatures and a quieter system.

Additionally , Radeon WattMan profiles can also be created for each application, offering the same set of customizable options as described above, via Gaming Application Profiles. When a specific application profile is loaded, it overrides global WattMan settings while that application is running.

To load or save a Radeon WattMan profile (global or application specific) , click the Load profile or Save profile buttons. Profiles (saved in XML format) are stored by default in the following location::\Users\\Appdata\Local\AMD\CN



To learn how to create an application profile, please refer to the following knowledgebase:Creating Application Profiles.

Restoring default settings

If you want to revert Radeon WattMan global or individual application settings can be reset to factory defaults by clicking the Reset option located in the top right corner of the Radeon WattMan global or individual menu. /p>



Radeon Chill

Radeon Chill is a power-saving feature that dynamically regulates the frame rate based on your character and in-game camera movement2.

As your movement decreases, Radeon Chill will lower your game’s frame rate, saving power and lowering GPU temperature.

Radeon Chill must first be enabled in the menu Gaming/Global Settings/Global Settings.

Radeon Chill can be toggled on and off during gameplay by pressing an assigned hotkey. The hotkey can be changed by selecting Chill Hotkey and then pressing the desired hotkey.

For more information on Radeon Chill and a list of supported games, please see the Radeon Chill Technology Page.



Once Radeon Chill has been globally enabled, it can be configured for each app, within an app profile:

• Chill – Enable Radeon Chill for the current game
• Chill MIN – The minimum frame rate for cooling to work (minimum is 30 FPS, default is 70)
• Chill MAX – The maximum frame rate for cooling to work (maximum is 300 FPS, default is 144)



To learn how to create an application profile, please see the following knowledge base: Creating Application Profiles (Creating Application Profiles).

1 Overclocking AMD processors, which includes, without limitation, changing clock rates/multipliers or voltage/latency of the memory to operate beyond default specifications will void the AMD product warranty, even if overclocked by AMD hardware or software. It may also void warranties given by the system manufacturer or vendor. Users assume all risk and liability of overclocking AMD processors, which includes without limitation hardware failure or damage, reduced system performance, and/or data loss, corruption, or vulnerability.

2 Learn more at https://www.amd.com/en/technologies/radeon-software-chill

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