Intel's top Pentium chip, introduced in late ... while dual-core Pentium models such as Pentium D and Pentium Processor Extreme Editions omit the "4" designation. See Pentium.

Intel's first dual core 64-bit (Intel 64 ... See dual core. See also Pentium 4 Processor Extreme Edition. THIS DEFINITION IS FOR PERSONAL USE ONLY. All other reproduction requires permission.

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The first CPU to reach a clock speed of 4 GHz was the Pentium 4 570 released in November 2004 as part of Intel's NetBurst microarchitecture, but this milestone wasn't achieved out of the box.

All in all, this glimpse at the internals of a Pentium processor provides a fascinating snapshot of high-end Intel semiconductor prowess in the early 1990s.