Processor speed (GHz) is important because it determines how fast or slow the computer runs. The processor is the brain of the computer. It handles all the numerical calculations; therefore, if the calculation time is slow, the entire system's its overall performance gets affected. A 3.0 GHz processor has 3 billion opportunities per second to do something, while a 3.6 GHz processor has 3.6 billion chances -- making it roughly 20 percent faster. Processor have multiple cores (Dual-Core) meaning that a single chip actually has more than one CPU chip inside of it. While one chip running at 5 GHz will usually be faster than two chips running at 2.5 GHz, it gets harder to compare a quad-core chip at 3.6 GHZ with a six-core chip at 3.2 GHz. Generally speaking, if your employees are running multiple programs at once or are running software that is written specifically to take advantage of multi-core processors, a processor with more cores will be slower than a faster processor with fewer cores, but not always. Graphics Card is a piece of computer hardware that produces the image you see on a monitor. The Graphics Card is responsible for rendering an image to your monitor, it does this by converting data into a signal your monitor can understand. GTX is NVIDIA's top tier cards. Its a visual indication of power. It doesnt stand for anything. Ram DDR stands for double data rate, DDR ram does two transfers per clock cycle. And 1 MHz is one million cycles per second. DDR3 ram running at 1600MHz doesup to 3.2 billion transfers per second, which translates to about 13 billion bytes per second. DDR3 ram running at 2400MHz does up to 4.8 billion transfers per second, which translates to about 20 billion bytes per second. Hard disk drive (sometimes abbreviated as Hard drive, HD, or HDD) is a non-volatile memory hardware device that permanently stores and retrieves data on a computer. A hard drive consists of one or more platters to which data is written using a magnetic head, all inside of an air-sealed casing.
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