Qual foi o 1º Pentium com 64bits?

[vascovx3]

Boas pessoal,

É assim, ando a fazer uma "investigação" (chamem-lhe o que quiserem ), e deparei-me com o facto de não conseguir perceber afinal de contas qual foi o primeiro processador Pentium a usar 64bits.

Nalguns sítios diz que o primeiro Intel a usar 64 bits foi o Xeon Nocona (dual core), no entanto em relação ao Pentium parece que foi a familia 6** que adoptou esta tecnologia.

Resumindo, o que gostava de saber era mesmo o nóme de código desse tal processador, (já andei na página da Intel, mas não achei o que pretendia).

Se alguém souber fico agradecido

[Pboavida]

Tabela dos processadores da Intel

http://images.tomshardware.com/2007/07/ ... el_big.png


E já agora da AMD

http://images.tomshardware.com/2007/07/ ... md_big.png

Diverte-te

[SkylineGTR]

Intel 64 was originally implemented on the E revision (Prescott) of Pentium 4 line of microprocessors, which were supported by i915P (Grantsdale) and i925X (Alderwood) chipsets in June 2004. This was largely due to the competitive pressure of AMD's AMD64 technology implemented on Opteron and Athlon 64 lines of microprocessing units, otherwise known as the K8 core, one year earlier in 2003; the technology was largely built compatible to AMD64, and the then announced Windows XP Professional x64 Edition supporting AMD64 technology. Intel's first processor to activate the Intel 64 technology was the multi-socket processor Xeon code-named Nocona. Since the Nocona Xeon itself is directly based on Intel's desktop processor, the Pentium 4, the Pentium 4 also has Intel 64 technology built in, although as with Hyper-Threading, this feature was not initially enabled on the then-new Prescott design, likely because enabling Intel 64 did not coincide with Intel's stance on 64-bit x86 extensions at that particular time. Intel subsequently began selling Intel 64-enabled Pentium 4s using the E0 revision of the Prescott core, being sold on the market as the Pentium 4, model F. However, the revision F core was targeted at workstations. Intel's official launch of Intel 64 (under the name EM64T at that time) in mainstream desktop processors was the N0 Stepping Prescott-2M. The E0 revision also adds eXecute Disable(XD) (Intel's name for the NX bit) support to Intel 64, and has been included in the current Xeon code-named Irwindale. All 9xx/8xx/6xx/5x6/5x1/3x6/3x1 series CPUs have Intel 64 enabled, as do the Core 2 CPUs, and as will all future Intel CPUs. Intel 64 is also present in the last members of the Celeron D line.

[VBTC]

Os primeiros foram os Prescott 50x, os 51x não tinham EM64, os P4 600 já são os Cedar Mill e esses tinham todos EM64.

Cheguei atrasado...

[vascovx3]

Ora aí está

Obrigado pelas respostas, já agora, o link das imagens não funciona, contudo a citação do SkylineGTR é mais do que suficiente para o que precisava de saber.

Fiquem bem