The best solution to upgrade video card performance is to purchase a new video card. However, sometimes this is not possible. If that is the case, it is often possible to overclock your current video card using software with the ability to modify the clock speed of the card's GPU. In the case of the ECS GeForce 6100, there are a number of applications that may be used.
RivaTuner
RivaTuner is a tweaking program originally designed with Nvidia graphics cards in mind. RivaTuner offers support for the full range of Nvidia hardware. In addition to overclocking, RivaTuner also provides the user with the ability to tweak driver settings to maximize performance. RivaTuner is a robust program, with the developer claiming that it offers users a wide array of tuning options, from custom application-based settings to real-time hardware monitoring. As of November 2010, the program is still being actively developed.
Coolbits 2.0
Coolbits 2.0 is a tool that allows users more functionality within the Nvidia control panel. It is a registry tweak that unlocks formerly hidden functions within the control panel that are normally considered for expert use only and are therefore hidden by default. Included in these functions is the ability to overclock the card from within the Nvidia control panel. Coolbits 2.0 is compatible with Nvidia ForceWare drivers of version 55.xx and up. It is available freely for download.
ATITool
Despite its name, ATITool is also capable of overclocking Nvidia cards such as the ECS GeForce 6100. The developers of ATITool state that it is a lightweight tool designed for enthusiasts, meaning that it does not alter the user's registry in order to make the changes. ATITool is capable of adjusting both GPU and memory voltages, locating maximum overclocks, and scanning for artifacts to test for stability. It also provides users with hardware monitoring functionality and built in safeguards such as video card BIOS backup.
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