BogoMips
System Rating Index
Intel 8088 clock × 0.004 0.02
Intel/AMD 386SX clock × 0.14 0.8
Intel/AMD 386DX clock × 0.18 1 ( definition )
Motorola 68030 clock × 0.25 1.4
Cyrix / IBM 486 clock × 0.34 1.8
Intel Pentium clock × 0.40 2.2
Intel 486 clock × 0.50 2.8
AMD 5x86 clock × 0.50 2.8
MIPS R4000/R4400 clock × 0.50 2.8
ARM9 clock × 0.50 2.8
Motorola 68040 clock × 0.67 3.7
PowerPC 603 clock × 0.67 3.7
Intel StrongARM clock × 0.66 3.7
NexGen Nx586 clock × 0.75 4.2
PowerPC 601 clock × 0.84 4.7
Alpha 21064 /21064A clock × 0.99 5.5
Alpha 21066 /21066A clock × 0.99 5.5
Alpha 21164 /21164A clock × 0.99 5.5
Intel Pentium Pro clock × 0.99 5.5
Cyrix 5x86 / 6x86 clock × 1.00 5.6
Proper BogoMips ratings
As a very approximate guide , the BogoMips can be pre-calculated by the following table . The given rating is typical for that CPU with the then current and applicable Linux version . The index is the ratio of `` BogoMips per clock speed '' for any CPU to the same for an Intel 386DX CPU , for comparison purposes . [ 6 ] [ 7 ]
BogoMips (from bogus and MIPS) is an unscientific measurement of CPU speed made by the Linux kernel when it boots to calibrate an internal busy-loop. An often-quoted definition of the term is the number of million times per second a processor can do absolutely nothing. BogoMips is a value that can be used to verify whether the processor in question is in the proper range of similar processors, i.e. BogoMips represents a processor's clock frequency as well as the potentially present CPU cache. It is not usable for performance comparisons among different CPUs.