CPU Speed
First, I’d like to inform you all that CPU speed is different from the actual CPU’s performance. While the CPU’s speed does play a large role in the general perfomance of the CPU, it isn’t directly responsible for the other things that play a role in the CPU’s performance. Moving on…
The speed of a CPU is measured in MHz nowadays. For example, if a computer had an operating speed of 1 MHz, that would mean that it can complete one million cycles in one second. I comparison with today’s type of processors, Intel’s Pentium 4 model could perform at 3 GHz. There has been a significant jump in CPU speeds over past few years, as technology rapidly advances.
One clock cycle is where the CPU toggles between a logical 1 and a logical zero, which in binary computing is either an open or closed gate. Technically, a logical zero is known to be open for slightly longer than a logical one due to electrical restraints based on the specifications.
CPU manufacturers charge much higher rates the the CPUs that operate at higher rates. These CPU manufacturers test the CPU speeds during the final steps of the manufacturing process. After they compare the CPU’s to a certain set on standards, the CPU will either be placed into a lower operating bracket which naturally sells for lower, or a higher one, which prices seem to increment in large intervals.
As previosuly mentioned, the CPU clock cycle speed doesn’t actually determine what makes how “fast” a computer runs. There are several other instances to be considered:
- Cache - The computer’s cache determines much of how fast recently used information is accessed. The larger the cache, the better the general speed or navigating around and opening files.
- Memory - A system’s RAM (random access memory) plays a role in how fast data may b accessed as well. his not only makes the system generally faster but also allows for more programs to be open with less of a noticeable slowdown.
- Front Side Bus - Also known as the FSB, this is the connection between the CPU and the system’s memory itself. This helps determine how fast the data may be transferred between the two. So if you have a faster front side bus, then you should also have a faster system. The FSB usually operates at a certain percentage of how fast the CPU operates.
If interested in higher CPU speeds, also consider overclocking. First research the possible problems it could present, though.
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1DSL Anbieter on Jul 23, 2009 :
Thanks for the explanation on CPU speed and performance of a computer and functions of the memory units. I understood clearly that CPU speed is not a reliable indicator of CPU performance.