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For example, an IBM PC with an Intel 80486 CPU running at 50 MHz will be about twice as fast (internally only) as one with the same CPU and memory running at 25 MHz, while the same will not be true for MIPS R4000 running at the same clock rate as the two are different processors that implement different architectures and microarchitectures ...
By using SpeedStep, users can select the balance of power conservation and performance that best suits them, or even change the clock speed dynamically as the processor burden changes. The power consumed by a CPU with a capacitance C, running at frequency f and voltage V is approximately: [5] = For a given processor, C is a fixed value. However ...
The purpose of overclocking is to increase the operating speed of a given component. [3] Normally, on modern systems, the target of overclocking is increasing the performance of a major chip or subsystem, such as the main processor or graphics controller, but other components, such as system memory or system buses (generally on the motherboard), are commonly involved.
Intel A80386DX-20 CPU die image. The Intel 386, originally released as the 80386 and later renamed i386, was the first x86 32-bit microprocessor designed by Intel.Pre-production samples of the 386 were released to select developers in 1985, while mass production commenced in 1986.
The performance increase of the 80286 over the 8086 (or 8088) could be more than 100% per clock cycle in many programs (i.e., a doubled performance at the same clock speed). This was a large increase, fully comparable to the speed improvements seven years later when the i486 (1989) or the original Pentium (1993) were introduced.
Virtualized interrupt to speed up virtual 8086 mode. Branch prediction; Other features: Enhanced debug features with the introduction of the Processor-based debug port (see Pentium Processor Debugging in the Developers Manual, Vol 1). Enhanced self-test features like the L1 cache parity check (see Cache Structure in the Developers Manual, Vol 1).