Questão 2748574

• Banca: UFBA
• Órgão: UNILAB
• Ano: 2014
• Provas: UFBA - 2014 - Unilab - Administrador; UFBA - 2014 - Unilab - Assistente Social; UFBA - 2014 - Unilab - Contador; UFBA - 2014 - Unilab - Economista
• Disciplina: Arquitetura de Computadores
• Assuntos: Processadores

Um processador de dois núcleos (dual-core), rodando a 3,2 GHz, equivale a um processador de um único núcleo (single-core) de 6,4 GHz.

• C. Certo
• E. Errado

Gabarito: E

Comentários

• e-

  The proximity of multiple CPU cores on the same die allows the cache coherency circuitry to operate at a much higher clock rate than what is possible if the signals have to travel off-chip. Combining equivalent CPUs on a single die significantly improves the performance of cache snoop (alternative: Bus snooping) operations. Put simply, this means that signals between different CPUs travel shorter distances, and therefore those signals degrade less. These higher-quality signals allow more data to be sent in a given time period, since individual signals can be shorter and do not need to be repeated as often.

  https://en.wikipedia.org/wiki/Multi-core_processor