. . . . . . . . "Le mythe du m\u00E9gahertz est une croyance selon laquelle la fr\u00E9quence d'horloge permet de comparer les performances des microprocesseurs. Bien que la fr\u00E9quence d'horloge soit un bon outil pour comparer les performances d'un m\u00EAme type de processeur, d'autres facteurs changent grandement la donne quand il s'agit de processeurs diff\u00E9rents. Cette id\u00E9e a commenc\u00E9 \u00E0 se r\u00E9pandre en 1984, dans des comparaisons entre l'Apple II et l'IBM PC. L'argument \u00E9tait que le PC \u00E9tait 5 fois plus rapide que l'Apple II, vu que son processeur Intel 8086 avait une fr\u00E9quence d'horloge 5 fois sup\u00E9rieure \u00E0 celle du Rockwell 6502 utilis\u00E9 dans l'Apple II. Les autres facteurs qui influencent la performance sont l'architecture interne des processeurs, la taille et le nombre de registres, la taille et l'organisation des diff\u00E9rents niveaux de cache, etc."@fr . . . . "Megahertzmyten \u00E4r ett folkligt namn p\u00E5 missuppfattningen att en processors prestanda enbart beror p\u00E5 dess klockfrekvens (som n\u00E4r myten b\u00F6rjade f\u00E5 spridning oftast m\u00E4ttes i megahertz). Stora elektronikf\u00F6retag, d\u00E4ribland Intel, har anklagats f\u00F6r att uppr\u00E4tth\u00E5lla myten genom att ganska ensidigt betona klockfrekvensen i sin marknadsf\u00F6ring, trots att \u00E5tskilliga andra tekniska faktorer p\u00E5verkar en processors prestanda; detta g\u00E4llde till exempel tidiga versioner av Pentium 4 (Willamette) som var \"snabbare p\u00E5 pappret\" \u00E4n Pentium III, trots att de i praktiken gav l\u00E4gre prestanda f\u00F6r merparten till\u00E4mpningar."@sv . . . . . "Megahertz myth"@en . . . . . "11472"^^ . . . . . "1095911596"^^ . . . . . . . . . . . . . . . . . . . . "Megahertzmyten \u00E4r ett folkligt namn p\u00E5 missuppfattningen att en processors prestanda enbart beror p\u00E5 dess klockfrekvens (som n\u00E4r myten b\u00F6rjade f\u00E5 spridning oftast m\u00E4ttes i megahertz). Stora elektronikf\u00F6retag, d\u00E4ribland Intel, har anklagats f\u00F6r att uppr\u00E4tth\u00E5lla myten genom att ganska ensidigt betona klockfrekvensen i sin marknadsf\u00F6ring, trots att \u00E5tskilliga andra tekniska faktorer p\u00E5verkar en processors prestanda; detta g\u00E4llde till exempel tidiga versioner av Pentium 4 (Willamette) som var \"snabbare p\u00E5 pappret\" \u00E4n Pentium III, trots att de i praktiken gav l\u00E4gre prestanda f\u00F6r merparten till\u00E4mpningar. Uttrycket anv\u00E4ndes ursprungligen vid j\u00E4mf\u00F6relser mellan PC-datorer, som byggdes kring Intels x86-processorserie, och Apples Macintosh, som byggde p\u00E5 Motorolas 68 K-processorserie. PC-datorerna hade genomg\u00E5ende h\u00F6gre klockfrekvens, men presterade s\u00E4llan b\u00E4ttre \u00E4n Apples datorer. P\u00E5 senare \u00E5r har uttrycket kommit att anv\u00E4ndas vid j\u00E4mf\u00F6relser mellan Intels och AMD:s x86-kompatibla processorer. Detta ska ha varit anledningen till att AMD en period \u00F6vergick till att namnge sina processorer efter vilken klockfrekvens som f\u00F6retaget menade att Pentium 4 skulle kr\u00E4va f\u00F6r att uppn\u00E5 samma prestanda."@sv . "Megahertzmyten"@sv . . . . . . . . . "\u041C\u0438\u0444 \u043E \u043C\u0435\u0433\u0430\u0433\u0435\u0440\u0446\u0430\u0445"@ru . . . "Le mythe du m\u00E9gahertz est une croyance selon laquelle la fr\u00E9quence d'horloge permet de comparer les performances des microprocesseurs. Bien que la fr\u00E9quence d'horloge soit un bon outil pour comparer les performances d'un m\u00EAme type de processeur, d'autres facteurs changent grandement la donne quand il s'agit de processeurs diff\u00E9rents. Les autres facteurs qui influencent la performance sont l'architecture interne des processeurs, la taille et le nombre de registres, la taille et l'organisation des diff\u00E9rents niveaux de cache, etc."@fr . . . . . . . . . . . . "The megahertz myth, or in more recent cases the gigahertz myth, refers to the misconception of only using clock rate (for example measured in megahertz or gigahertz) to compare the performance of different microprocessors. While clock rates are a valid way of comparing the performance of different speeds of the same model and type of processor, other factors such as an amount of execution units, pipeline depth, cache hierarchy, branch prediction, and instruction sets can greatly affect the performance when considering different processors. For example, one processor may take two clock cycles to add two numbers and another clock cycle to multiply by a third number, whereas another processor may do the same calculation in two clock cycles. Comparisons between different types of processors ar"@en . . . . . "\u00AB\u041C\u0438\u0444 \u043E \u043C\u0435\u0433\u0430\u0433\u0435\u0440\u0446\u0430\u0445\u00BB (\u0438\u043D\u043E\u0433\u0434\u0430 \u00AB\u041C\u0438\u0444 \u043E \u0433\u0438\u0433\u0430\u0433\u0435\u0440\u0446\u0430\u0445\u00BB) \u2014 \u0432\u044B\u0440\u0430\u0436\u0435\u043D\u0438\u0435 \u0438 \u043E\u043F\u0438\u0441\u044B\u0432\u0430\u0435\u043C\u043E\u0435 \u0438\u043C \u0437\u0430\u0431\u043B\u0443\u0436\u0434\u0435\u043D\u0438\u0435, \u0447\u0442\u043E \u043F\u0440\u043E\u0446\u0435\u0441\u0441\u043E\u0440\u044B \u0441 \u0431\u043E\u043B\u0435\u0435 \u0432\u044B\u0441\u043E\u043A\u043E\u0439 \u0442\u0430\u043A\u0442\u043E\u0432\u043E\u0439 \u0447\u0430\u0441\u0442\u043E\u0442\u043E\u0439 \u0432\u0441\u0435\u0433\u0434\u0430 \u0438\u043C\u0435\u044E\u0442 \u0431\u043E\u043B\u0435\u0435 \u0432\u044B\u0441\u043E\u043A\u0443\u044E \u043F\u0440\u043E\u0438\u0437\u0432\u043E\u0434\u0438\u0442\u0435\u043B\u044C\u043D\u043E\u0441\u0442\u044C, \u0447\u0435\u043C \u043F\u0440\u043E\u0446\u0435\u0441\u0441\u043E\u0440\u044B \u0441 \u0431\u043E\u043B\u0435\u0435 \u043D\u0438\u0437\u043A\u043E\u0439 \u0442\u0430\u043A\u0442\u043E\u0432\u043E\u0439 \u0447\u0430\u0441\u0442\u043E\u0442\u043E\u0439. \u041E\u043D\u043E \u043F\u043E\u043B\u0443\u0447\u0438\u043B\u043E \u043F\u043E\u043F\u0443\u043B\u044F\u0440\u043D\u043E\u0441\u0442\u044C \u0431\u043B\u0430\u0433\u043E\u0434\u0430\u0440\u044F \u043C\u0430\u0440\u043A\u0435\u0442\u0438\u043D\u0433\u043E\u0432\u043E\u0439 \u043A\u043E\u043C\u043F\u0430\u043D\u0438\u0438 Apple, \u0438\u0441\u043F\u043E\u043B\u044C\u0437\u043E\u0432\u0430\u0432\u0448\u0435\u0439 \u0432 \u043A\u043E\u043C\u043F\u044C\u044E\u0442\u0435\u0440\u0430\u0445 Macintosh \u043F\u0440\u043E\u0446\u0435\u0441\u0441\u043E\u0440\u044B PowerPC, \u0440\u0430\u0431\u043E\u0442\u0430\u0432\u0448\u0438\u0435 \u043D\u0430 \u0447\u0430\u0441\u0442\u043E\u0442\u0435, \u0437\u043D\u0430\u0447\u0438\u0442\u0435\u043B\u044C\u043D\u043E \u043C\u0435\u043D\u044C\u0448\u0435\u0439, \u0447\u0435\u043C \u043A\u043E\u043D\u043A\u0443\u0440\u0438\u0440\u0443\u044E\u0449\u0438\u0435 \u043F\u0440\u043E\u0446\u0435\u0441\u0441\u043E\u0440\u044B Intel Pentium 4."@ru . . "Mythe du m\u00E9gahertz"@fr . . . . . . . . . . . . . "The megahertz myth, or in more recent cases the gigahertz myth, refers to the misconception of only using clock rate (for example measured in megahertz or gigahertz) to compare the performance of different microprocessors. While clock rates are a valid way of comparing the performance of different speeds of the same model and type of processor, other factors such as an amount of execution units, pipeline depth, cache hierarchy, branch prediction, and instruction sets can greatly affect the performance when considering different processors. For example, one processor may take two clock cycles to add two numbers and another clock cycle to multiply by a third number, whereas another processor may do the same calculation in two clock cycles. Comparisons between different types of processors are difficult because performance varies depending on the type of task. A benchmark is a more thorough way of measuring and comparing computer performance. The myth started around 1984 when comparing the Apple II with the IBM PC. The argument was that the PC was five times faster than the Apple II, as its Intel 8088 processor had a clock speed roughly 4.7 times the clock speed of the MOS Technology 6502 used in the Apple. However, what really matters is not how finely divided a machine's instructions are, but how long it takes to complete a given task. Consider the LDA # (Load Accumulator Immediate) instruction. On a 6502 that instruction requires two clock cycles, or 2 \u03BCs at 1 MHz. Although the 4.77 MHz 8088's clock cycles are shorter, the LDA # needs at least 4 of them, so it takes 4 / 4.77 MHz = 0.84 \u03BCs at least. So, at best, that instruction runs only a little more than 2 times as fast on the original IBM PC than on the Apple II."@en . . "\u00AB\u041C\u0438\u0444 \u043E \u043C\u0435\u0433\u0430\u0433\u0435\u0440\u0446\u0430\u0445\u00BB (\u0438\u043D\u043E\u0433\u0434\u0430 \u00AB\u041C\u0438\u0444 \u043E \u0433\u0438\u0433\u0430\u0433\u0435\u0440\u0446\u0430\u0445\u00BB) \u2014 \u0432\u044B\u0440\u0430\u0436\u0435\u043D\u0438\u0435 \u0438 \u043E\u043F\u0438\u0441\u044B\u0432\u0430\u0435\u043C\u043E\u0435 \u0438\u043C \u0437\u0430\u0431\u043B\u0443\u0436\u0434\u0435\u043D\u0438\u0435, \u0447\u0442\u043E \u043F\u0440\u043E\u0446\u0435\u0441\u0441\u043E\u0440\u044B \u0441 \u0431\u043E\u043B\u0435\u0435 \u0432\u044B\u0441\u043E\u043A\u043E\u0439 \u0442\u0430\u043A\u0442\u043E\u0432\u043E\u0439 \u0447\u0430\u0441\u0442\u043E\u0442\u043E\u0439 \u0432\u0441\u0435\u0433\u0434\u0430 \u0438\u043C\u0435\u044E\u0442 \u0431\u043E\u043B\u0435\u0435 \u0432\u044B\u0441\u043E\u043A\u0443\u044E \u043F\u0440\u043E\u0438\u0437\u0432\u043E\u0434\u0438\u0442\u0435\u043B\u044C\u043D\u043E\u0441\u0442\u044C, \u0447\u0435\u043C \u043F\u0440\u043E\u0446\u0435\u0441\u0441\u043E\u0440\u044B \u0441 \u0431\u043E\u043B\u0435\u0435 \u043D\u0438\u0437\u043A\u043E\u0439 \u0442\u0430\u043A\u0442\u043E\u0432\u043E\u0439 \u0447\u0430\u0441\u0442\u043E\u0442\u043E\u0439. \u041E\u043D\u043E \u043F\u043E\u043B\u0443\u0447\u0438\u043B\u043E \u043F\u043E\u043F\u0443\u043B\u044F\u0440\u043D\u043E\u0441\u0442\u044C \u0431\u043B\u0430\u0433\u043E\u0434\u0430\u0440\u044F \u043C\u0430\u0440\u043A\u0435\u0442\u0438\u043D\u0433\u043E\u0432\u043E\u0439 \u043A\u043E\u043C\u043F\u0430\u043D\u0438\u0438 Apple, \u0438\u0441\u043F\u043E\u043B\u044C\u0437\u043E\u0432\u0430\u0432\u0448\u0435\u0439 \u0432 \u043A\u043E\u043C\u043F\u044C\u044E\u0442\u0435\u0440\u0430\u0445 Macintosh \u043F\u0440\u043E\u0446\u0435\u0441\u0441\u043E\u0440\u044B PowerPC, \u0440\u0430\u0431\u043E\u0442\u0430\u0432\u0448\u0438\u0435 \u043D\u0430 \u0447\u0430\u0441\u0442\u043E\u0442\u0435, \u0437\u043D\u0430\u0447\u0438\u0442\u0435\u043B\u044C\u043D\u043E \u043C\u0435\u043D\u044C\u0448\u0435\u0439, \u0447\u0435\u043C \u043A\u043E\u043D\u043A\u0443\u0440\u0438\u0440\u0443\u044E\u0449\u0438\u0435 \u043F\u0440\u043E\u0446\u0435\u0441\u0441\u043E\u0440\u044B Intel Pentium 4."@ru . "2093258"^^ . . . . . . . . . . . . . . .