What is ghz

Hertz Hz refers to the number of cycles per second with periodic 1-second intervals. One megahertz MHz equals 1,, Hz. One gigahertz is equal to 1, megahertz MHz or 1,,, Hz.

Gigahertz is often used to measure central processing unit CPU clock speed. In general, higher CPU clock speeds indicate faster computers. One gigahertz equals 1,,, Hz or 1, MHz and has a frequency measurement with periodic 1-second cycles. A nanosecond is one-billionth of a second or one-thousandth of a microsecond. Hertz is based on total rotations per second, that is, one full second rotation equals 1 Hz.

One kilohertz represents 1, rotations per second. One megahertz represents 1 million rotations per second. One gigahertz represents 1 billion cycles per second. Clock speed, which is also measured in hertz, refers to synchronous circuit clock frequency, for example, a CPU.

One clock cycle lasts only 1 nanosecond and toggles between 0 and 1. Finally, processors with more efficient instruction sets that can do more work in fewer clock cycles run more quickly than those that need more cycles to finish an instruction. Once you've made all of those factors equal, compare processors to see which is faster by looking at the internal clock speed's gigahertz rating. Steve Lander has been a writer since , with experience in the fields of financial services, real estate and technology.

By Steve Lander. System Clocks Processors work according to a clock that beats a set number of times per second, usually measured in gigahertz. Internal vs. External The clock that usually gets included in marketing materials is the internal clock, but a processor also has an external clock that determines how quickly the processor can communicate with the outside world.

Clocks and Instructions The difference between a processor's internal and external clock speeds is one limitation on its performance. Putting It All Together The three factors identified here work together to determine how fast a given processor will operate. References PCMag. Devices transmitting at or near the same band can interfere with each other. This is caused by the wave-like nature of radio waves; peaks in one wave can be offset by lows in the other wave, thereby nullifying both waves.

The closer in frequency the two signals, the more pronounced the effect. The use of GHz frequencies for communications was made possible by advances in semiconductor technologies. Prior to the widespread use of transistors and high-speed electronics, it was not practical to generate such high frequencies.