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Instructions per second (IPS) is a measure of a computer 's processor speed. For complex instruction set computers (CISCs), different instructions take different amounts of time, so the value measured depends on the instruction mix; even for comparing processors in the same family the IPS measurement can be problematic.
Instructions per cycle. In computer architecture, instructions per cycle (IPC), commonly called instructions per clock, is one aspect of a processor 's performance: the average number of instructions executed for each clock cycle. It is the multiplicative inverse of cycles per instruction. [1][2][3]
In October 2010, China unveiled the Tianhe-1, a supercomputer that operates at a peak computing rate of 2.5 petaFLOPS. [ 49 ] [ 50 ] As of 2010 [update] the fastest PC processor reached 109 gigaFLOPS ( Intel Core i7 980 XE ) [ 51 ] in double precision calculations.
In early processors, the TSC was a cycle counter, incrementing by 1 for each clock cycle (which could cause its rate to vary on processors that could change clock speed at runtime) – in later processors, it increments at a fixed rate that doesn't necessarily match the CPU clock speed. [m] Usually 3 [n] Intel Pentium, AMD K5, Cyrix 6x86MX ...
The latest badge promoting the Intel Core branding. The following is a list of Intel Core processors.This includes Intel's original Core (Solo/Duo) mobile series based on the Enhanced Pentium M microarchitecture, as well as its Core 2- (Solo/Duo/Quad/Extreme), Core i3-, Core i5-, Core i7-, Core i9-, Core M- (m3/m5/m7), Core 3-, Core 5-, and Core 7-branded processors.
CPU multiplier. In computing, the clock multiplier (or CPU multiplier or bus/core ratio) sets the ratio of an internal CPU clock rate to the externally supplied clock. This may be implemented with phase-locked loop (PLL) frequency multiplier circuitry. A CPU with a 10x multiplier will thus see 10 internal cycles for every external clock cycle.
This is the architectural behavior for all later Intel processors. AMD processors up to the K8 core always incremented the time-stamp counter every clock cycle. [6] Thus, power management features were able to change the number of increments per second, and the values could get out of sync between different cores or processors in the same system.
Enhanced SpeedStep is a series of dynamic frequency scaling technologies (codenamed Geyserville[2] and including SpeedStep, SpeedStep II, and SpeedStep III) built into some Intel 's microprocessors that allow the clock speed of the processor to be dynamically changed (to different P-states) by software. This allows the processor to meet the ...