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Related to numeric representation is the size and precision of integer numbers that a CPU can represent. In the case of a binary CPU, this is measured by the number of bits (significant digits of a binary encoded integer) that the CPU can process in one operation, which is commonly called word size , bit width , data path width , integer ...
IBM Waternoose Xbox 360 Processor – 2005; IBM–Sony–Toshiba Cell processor – 2005; Intel Pentium 4 Prescott – 2004-02; Intel Celeron D Prescott-256 – 2004-05; Intel Pentium M Dothan – 2004-05; Intel Celeron M Dothan-1024 – 2004-08; Intel Xeon Nocona, Irwindale, Cranford, Potomac, Paxville – 2004-06; Intel Pentium D Smithfield ...
The byte, 8 bits, 2 nibbles, is possibly the most commonly known and used base unit to describe data size. The word is a size that varies by and has a special importance for a particular hardware context. On modern hardware, a word is typically 2, 4 or 8 bytes, but the size varies dramatically on older hardware.
The transistor count is the number of transistors in an electronic device (typically on a single substrate or silicon die).It is the most common measure of integrated circuit complexity (although the majority of transistors in modern microprocessors are contained in cache memories, which consist mostly of the same memory cell circuits replicated many times).
Holders for memory addresses must be of a size capable of expressing the needed range of values but not be excessively large, so often the size used is the word though it can also be a multiple or fraction of the word size. Registers Processor registers are designed with a size appropriate for the type of data they hold, e.g. integers, floating ...
Further, a "cumulative clock rate" measure is sometimes assumed by taking the total cores and multiplying by the total clock rate (e.g. a dual-core 2.8 GHz processor running at a cumulative 5.6 GHz). There are many other factors to consider when comparing the performance of CPUs, like the width of the CPU's data bus , the latency of the memory ...
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The size of data objects became larger; allowing more transistors on a chip allowed word sizes to increase from 4-and 8-bit words up to today's 64-bit words. Additional features were added to the processor architecture; more on-chip registers sped up programs, and complex instructions could be used to make more compact programs.