Sunday December 15 2019

Best free CPU Overclocking applications for Windows


Overclocking is the process of forcing a computer to run at a higher frequency than that designed by the manufacturer and is performed by those who want to increase the performance of their computer to achieve higher levels of performance beyond the factory default settings.
Overclocking users' motivation is mainly focused on their efforts for processors, video cards, motherboards, and RAM. This can be done by operating the processor multiplier and the motherboard by raising the FSB to its maximum constant operating speed. While the idea is simple, the variation of the electrical and physical characteristics of computer systems complicates the process. CPU multipliers, FSB dividers, voltages, thermal loads, cooling techniques and various other factors can affect the effectiveness of Overclocking.

The first issue is to ensure that the system is supplied with sufficient power to operate at the new speed. All electronic circuits produce heat generated by the motion of electrons. Due to the increased heat generated by the overclocked an efficient cooling system is necessary to avoid deterioration and damage to the material.

In addition, digital circuits slow down at high temperatures due to changes in the metal-oxide-semiconductor field of power transistors (MOSFET amplifier) ​​features of the device. The resistance also increases slightly at higher temperatures, which contributes to the reduced efficiency of the circuit. Because stock refrigeration systems are designed for the amount of energy generated during non-overclocked use, overclockers typically turn to more efficient cooling solutions, such as powerful fans or even water-cooled. Size, shape, and material affect the ability of a brush to distribute heat. 

Efficient heat sinks are often made entirely of copper, which has a high thermal conductivity. Aluminum is more widely used has lower thermal conductivity, but is significantly cheaper than copper. Iron and steel are not often used in cold storage due to poor thermal conductivity. Silver is used in some designs, its thermal conductivity is higher than copper, but it is prohibitively expensive for most applications.

Many coolers combine two or more materials to achieve a balance between performance and cost. Thermoelectric cooling systems, also known as Peltier appliances, are popular with the appearance of high Thermal Design Power (TDP) in processors from Intel and AMD. and creates temperature differences between the two plates by the operation of electricity through the plates.

This method is very effective in cooling, but has the disadvantage that it leads to unnecessary heat. Another danger is the various errors that are initially unnoticed. 

In general, the claim that testing can ensure that an overclocked system is stable and functioning properly is true. Although there are software tools available to test the stability of the hardware, it is generally impossible for anyone to examine in depth the functionality of a processor and what this action might cause in the future.

Therefore, for those who like sports, it is good to read a lot about this topic and then go ahead and apply the most basic principle. We never do Overclocking by jumping directly to the highest operating frequency we want, but gradually step by step thoroughly checking each time not only the speed of our computer but also for any other stability problems that may occur. 

Applications for overcloking

Nowadays there are many motherboards that have overclocking tools from their manufacturer so that users do not have to look for third party solutions to increase the performance of their computer. However, this does not mean that every computer has the right tools for this purpose. So, depending on the processor you have, we present you the most common programs.


Intel Extreme Tuning Utility is a powerful overclocking tool for PCs with processors Intel. The program opens a page with information about your system where there is plenty of details about your computer processor, graphics card, memory, BIOS, motherboard and more.

It also shows a graph of CPU usage, temperature and frequency of your processor that changes over time, so you can see how your processor temperature rises as you run an application and at the same time gives you possibility to change some settings in your processor, such as voltage and memory (if your system allows it) if not some of the features in the sliders will appear grayed out.

The program also includes an endurance test for your CPU, memory and graphics card to determine if the overclocking you have done keeps the computer running consistently. Of course it includes profile options that allow you to easily save your settings or revoke a specific setting. However, you should be aware that overclocking can be potentially dangerous. So do not use the Intel Extreme Tuning Utility if you do not know exactly what you are doing or are not willing to accept the potential risks.


This program is mainly intended for EVGA graphics cards but it performs its tasks very well with graphics cards from other manufacturers and supports graphics cards Nvidia and will help us to make overclocked graphics cards. We can control the fan speed, the kernel clock, the shader clock, the clock memory and it also allows us to monitor the temperature which is very important.

AMD OverDrive gives you complete control over your system. Personalize your real-time experience with easy-to-use screens designed for both beginners and advanced users. Allows the user to tune parameters to help system stability, optimize performance, and control cooling characteristics.

AMD OverDrive technology lets you track all performance settings, such as clock memory, voltage, and memory. It also performs advanced stability tests to ensure overall system stability so you can focus on your game. Hardware parameters can be manually controlled or allow AMD OverDrive to automatically tune the system.

Stability tests can be performed as soon as a system is modified to verify the system and perform a performance test to measure the impact of the modification. Designed and tested to work with platforms and components AMD, but may not be supported on all chipsets and processors developed by other manufacturers.


MSI Afterburner is a free software that undertakes to accomplish this difficult task of overclocking our graphics card. It is basically an overcloking application with the help of which we can tamper with the graphics card. Which in particular allows us to change the voltage, the operating frequency of the GPU, the memory on our graphics card and the speed of its fans.

I must point out, however, that such interventions may involve some risks in terms of system stability and of course there is always the possibility of damage to our graphics card. Therefore the installation is at your own risk .

In general, the rationale is the following, we tease little by little the settings we want, we apply the changes and if all goes well we try to push our card more. Of course, this does not mean that you have to exhaust all the margins and finish it. A small change in the GPU kernel timing and graphics card memory, I think is enough to see the difference especially if your card is not so ΄΄possible΄΄ I also recommend if you are not an experienced user not to bother settings on voltage and fans and focus only on changing the GPU frequency and memory.

Try raising the core frequency a bit and pressing Aplly. If all goes well, tweak the memory frequency a bit and press Apply to save the settings, repeat the process by increasing the frequency step by step, but be careful not to overdo it. A range between 50-100 MHz for the kernel and 50 MHz for the memory I think is enough, although it depends a lot on the graphics card you have.

Another feature of the application is the profiles. You can save each setting in a different profile and restore it by pressing the key you have set for each of them. In this way you can save for example in the first profile the normal operation of your graphics card and in the next to create profiles with different operating frequencies and depending on the case to activate the specific one each time.

Also another function of the application is the possibility that allows us to save in snapshots in photos or videos from the application or the game that we run by pressing the keys that we have predefined in these settings, you will find it by pressing Settings and then selecting Screen Capture and then Video Capture. To determine which key to use, click the Screen Capture field with your mouse and then press the key with which you want it to start, then do the same with Video Capture.

Of course the key you specify should not be the same but different for each function, for example F10 for Screen Capture and F12 for Video Capture. Finally, if you want to change the appearance of the application, click Settings- User Interface and select one of the available skins of the application. TechPowerUp GPU-Z

The application is suitable for all graphics cards and for use even on laptops. It is known that in laptops we can not do many things at the hardware level to increase their performance since it does not fit "hand". 

A laptop should be characterized in addition to its good overall performance depending on the processor, memory, and graphics card it has, mainly by stability, something that the application provides us if we use it wisely.

Applications for checking the stability of the computer

OCCT is a free tool for measuring the performance and stability of your computer. It has 4 built-in test panels aimed at CPU, GPU and power supply. It also monitors temperatures, trends, fan speed, as well as memory usage and frame rate (FPS) (3D test). It has the most accurate error detection algorithm for CPU and GPU.


Program for stability testing, SuperPi open source multi-platform clone and comes with GUI and CLI. Can be used for CPU and RAM, with benchmarking.
The time of truth

After we have exhausted our tests and we have stabilized our computer, it is time to visualize the results of our tests. For this purpose we used PassMark PerformanceTest which will help us for the speed of testing and benchmarking. PerformanceTest PassMark lets you get objective benchmarks on one computer using a variety of different speed tests and compare results on other computers.

Compare the performance of your machine with similar machines and measure the effect of the changes. The program after performing a complete check on all the Hardware of your computer and after making a complete analysis will give you its rating. 

Before you start the changes it will be good to do a test before the changes and one after to see the differences in its performance. The only downside of the application is that it is not free, however you can use the full version of the product for free for 30 days.
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