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MSI Afterburner is a graphics card overclocking (OC) and monitoring utility that allows users to monitor and adjust various settings of their graphics card. [2] Developed by MSI (Micro-Star International) and previously Alexey Nicolaychuk, developer of RivaTuner, it is widely used for enhancing the performance of graphics cards, especially in gaming and high-performance tasks.
It has since been licensed by computer hardware vendors and integrated into various overclocking utilities, including MSI Afterburner, EVGA Precision X (prior to version 16), and ASUS GPU Tweak. In 2014, EVGA terminated its contract with Alexey and was subsequently discovered to have engaged in source code theft after releasing a clone of ...
The purpose of overclocking is to increase the operating speed of a given component. [3] Normally, on modern systems, the target of overclocking is increasing the performance of a major chip or subsystem, such as the main processor or graphics controller, but other components, such as system memory or system buses (generally on the motherboard), are commonly involved.
Dynamic voltage scaling to increase voltage is known as overvolting; dynamic voltage scaling to decrease voltage is known as undervolting. Undervolting is done in order to conserve power , particularly in laptops and other mobile devices , where energy comes from a battery and thus is limited, or in rare cases, to increase reliability.
Underclocking can also be performed on graphics card processor's GPUs, usually with the aim of reducing heat output. For instance, it is possible to set a GPU to run at lower clock rates when performing everyday tasks (e.g. internet browsing and word processing), thus allowing the card to operate at lower temperature and thus lower, quieter fan speeds.
The dynamic power (switching power) dissipated by a chip is C·V 2 ·A·f, where C is the capacitance being switched per clock cycle, V is voltage, A is the activity factor [1] indicating the average number of switching events per clock cycle by the transistors in the chip (as a unitless quantity) and f is the clock frequency.
This page was last edited on 16 July 2008, at 18:49 (UTC).; Text is available under the Creative Commons Attribution-ShareAlike 4.0 License; additional terms may ...
CPU-Z is more comprehensive in virtually all areas compared to the tools provided in Windows to identify various hardware components, and thus assists in identifying certain components without the need of opening the case; particularly the core revision and RAM clock rate.