The Intel Pentium IV processor family supporting Hyper-Threading Technology (HT Technology) is best-suited to desktop PCs and entry-level workstations. The Pentium IV processor is designed to deliver performance across applications and uses where end-users can appreciate and experience the performance. These applications include Internet audio and streaming video, image processing, video content creation, games, multimedia and multitasking user environments.Pentium IV Extreme EditionThe Intel Pentium IV processor Extreme Edition supporting HT Technology features 3.46 GHz with 2 MB of L3 cache and 3.73 GHz with 2 M of L2 cache to offer high levels of performance targeted specifically for high-end gamers and computing power users. It provides flexibility for future applications that support both 32-bit and 64-bit computing with Intel Extended Memory 64 Technology and is a dual-core processor (two physical cores in one processor support better system responsiveness and multi-tasking).Pentium IV 6x SeriesThe Intel Pentium IV 6x series offers 2MB L2 Cache and clock speeds of 3 to 3.80 GHz. Intel Extended Memory 64 Technology is available on the 600x processors. This provides flexibility for future applications that support both 32-bit and 64-bit computing.Pentium IV 5x SeriesThe Intel Pentium IV 5x series offers 1MB L2 Cache and clock speeds of 2.80 to 3.80 GHz. Intel Extended Memory 64 Technology is available on the 600x processors is available only on some of the 5x models (571, 561, 551, 541, 531, and 521).Intel Pentium IV SpecificationsThe Intel Pentium 4 Web site with specifications, briefs, Technology Overview & More.Pentium IV Technology ExplainedSharkyExtreme's Hardware Guide explains the technology behind the Intel Pentium IV
