Overclocking, in simple terms, allows computer hardware to run at speeds faster than the manufacturer intended. While overclocked, a computer'sCPUorcentral processing unit(the electronic circuitry that executes computer program instructions), can do more tasks at once, render media faster or display video games at higher frame rates. However, the practice comes with the downsides of greater power consumption and heat buildup, and may be discouraged by manufacturers.
Everycomputer processor, be it a CPU orGPU(graphics processing unit) comes with a factoryspeed rating. This rating is a multiple of the clock speed, measured as a frequency in hertz. The clock speed of any given CPU is managed by its controller software, calledBIOS. The clock speed measures the number of cycles a CPU can execute per second, measured in gigahertz, or billions of cycles per second. In 2021, consumer processors can commonly be found running between 2 and 5 gigahertz speeds. Older CPUs measured in megahertz, or millions of cycles per second.
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Speed ratings are usually set conservatively by these companies because silicon production still does not allow two examples of the same processor to be 100 percent identical to each other.Imperfections on the microscopic水平意味着每个产品一个流水线上will have slightly different capabilities. These variations also exist among each core in a multi-core CPU. As a result, chipmakers will lowball performance figures to keep uniformity among product lines. The true performance threshold of these processors is locked away in the BIOS, but it can be accessed through the process of overclocking.
Overclocking a computer's processor or CPU allows it to exceed factory speed limitations and complete tasks faster than normally possible. Other types of hardware, like GPUs andRAM, can similarly be overclocked for even greater boosts in performance.
While forcing your old or low-budget computer to run as fast as the more expensive stuff can sound like a fantastic proposition, for inexperienced users, overclocking may lead to its own issues. It's not a cure-all technique and works best in PCs with upgraded hardware.
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