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The
Motorola 68040 was one of the fastest CPUs released in 1990, performing at 44 million instructions per second (MIPS) at 40 MHz, while Intel released the
Intel 486 DX in both 1989 (at 25MHz) and again in 1990 (at 33MHz and 50MHz).
The
Intel 50 MHz Intel486 DX was the fastest CPU in 1991, with its introduction occurring in the fall of that year. This processor was a significant achievement for the era, offering much higher clock speeds than previous generations and a large number of transistors for its time.
The fastest CPU available in 1992 was the
Intel 486DX2-66, which debuted in the latter half of the year and offered a dual-clock design, running at an internal speed of 66 MHz while utilizing a slower external bus, significantly boosting performance over earlier 486 models. Other 486DX2 models, like the 50 MHz variant, were released earlier in the year, as well as the clock-doubling 486DX2-66 in May.
The fastest CPU available in 1993 was
the Intel Pentium, with initial models like the Pentium 60 MHz and Pentium 66 MHz released on March 22, 1993. This processor was Intel's fifth-generation x86 processor and featured a new superscalar architecture that provided a significant performance increase over its predecessor, the Intel 486.
The fastest CPU available in 1994 was the
Intel Pentium 100 MHz, which was released on March 7, 1994, and provided desktop processor performance at that time, offering significant speed improvements over previous processors like the IntelDX2.
The fastest CPU released in 1995 was the I
ntel Pentium Pro and the
AMD K5, which were the first of the "6th Generation" of CPUs, released in late 1995. The Pentium Pro was for the high-end market, while the AMD K5 was more focused on the mainstream and was able to deliver performance comparable to the Intel Pentium at the time.
The fastest consumer CPU in 1996 was the
Intel Pentium at 200 MHz. For high-performance and supercomputing applications, the Intel Pentium Pro was used, with a 200 MHz version being overclocked to 266 MHz in the same year, and also served as the core for the ASCI Red supercomputer.
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The fastest CPU available in 1997 was the
Intel Pentium II 300 MHz, which was introduced on May 7, 1997, combining the strengths of the Pentium Pro processor with Intel's MMX media enhancement technology for businesses and workstations.
The fastest CPU released in 1998 was the
Intel Pentium II 450 MHz, which was introduced by Intel in August 1998. Earlier in the year, Intel had released the 333 MHz Pentium II in January 1998.
The fastest CPU at the end of 1999 was the
Intel Pentium III 800 MHz, introduced on December 20, 1999, but the AMD Athlon 750 MHz, released in late November 1999, was the fastest CPU for a period after its release, according to CNN. The Athlon processor had briefly overtaken Intel's fastest model, the 733 MHz Pentium III, before Intel launched its new 800 MHz chip.
The fastest consumer CPU in 2000 was a close race between
Intel's Pentium III 1.0 GHz and AMD's Athlon processor, with Intel claiming the 1 GHz milestone in March 2000, followed shortly by Intel's release of the much-anticipated Pentium 4 in November of that year. The AMD Athlon was also performing very strongly, with an on-die cache version called the "Thunderbird" being released in June 2000.
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The
Intel Pentium 4 2.0 GHz, released in August 2001, was the fastest CPU of the year, offering superior performance to its predecessors. Competitively, AMD's top-performing CPU was the Athlon XP 1900+.
The fastest CPU in 2002 was the
Intel Pentium 4 3.06 GHz with Hyper-Threading it was the first desktop CPU from Intel to feature Hyper-Threading Technology (not the first dual-core CPU), which
simulated a second logical processor for improved multitasking.
The 3.06 GHz speed was a significant milestone for a commercial microprocessor, and the chip was designed for high-performance business users and multitasking.
The fastest mainstream CPU in 2003 was the Intel Pentium 4 Extreme Edition at 3.2GHz, with the AMD Athlon 64 FX-51 also being a high-end competitor and the first 64-bit processor for the desktop market released that year.
The AMD Athlon 64 FX-55 was generally considered the fastest CPU in 2004, receiving the "Best CPU" award from Maximum PC magazine for its strong performance, gaming benchmarks, and real-world application results. This processor was based on the 64-bit AMD64 architecture and offered high performance in both 32-bit and 64-bit environments, competing with Intel's Pentium 4 processors of the era.
The fastest single CPU in 2005 was likely the AMD Athlon 64 FX-60 (a dual-core model) or the high-clocked single-core
Intel Pentium 4 Extreme Edition 3.73 GHz, though the "fastest" depends on the specific metric and whether it was single or dual-core. AMD also released the
Athlon 64 X2 dual-core processor in May 2005, which became a top-tier performer that year.
The
Intel Core 2 Extreme X6800 was the fastest CPU in 2006, offering a significant performance increase over previous Intel processors with a new, more efficient architecture. Released in July 2006 as part of Intel's new Core 2 line, this dual-core processor, running at 2.93 GHz, outperformed other high-end processors of the time in both classic and modern applications.
The fastest CPU in 2007 was the
Intel Core 2 Extreme QX6800, which launched as the first true quad-core desktop CPU. Another extremely fast CPU released later in 2007 was the Intel Core 2 Extreme QX9770, clocked at 3.20GHz.
The
Intel Core i7 Extreme Edition (released November 2008) was widely considered the fastest desktop processor on the planet at the end of 2008, leveraging the new Nehalem architecture to offer industry-leading performance with features like Intel Turbo Boost Technology and Hyper-Threading Technology.
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The fastest desktop CPU in 2010 was the
Intel Core i7-980X Extreme Edition, a 6-core, 12-thread processor clocked at 3.33GHz with Intel Turbo Boost technology. This processor offered high performance for digital content creation, gaming, and multitasking, and was compatible with many existing
Intel X58-based motherboards.
The Intel Core i7-3960X was a leading desktop CPU in 2011, known for its performance and high clock speeds, while the Intel Xeon E5-2600 series (Sandy Bridge-EP) offered high-core-count options, though primarily for server and workstation use. Other notable processors included the Intel Core i5-2500K, which was popular for its excellent performance and unlocked multiplier for overclocking, as highlighted by pcr-online.biz.
The fastest high-end desktop CPU in late 2012 was the
Intel Core i7-3770K, part of Intel's Ivy Bridge generation. For AMD, the high-end was represented by the AMD FX-8350. For mobile processors, the Qualcomm Snapdragon S4 was considered the best processor of the year by Qualcomm.
The
Intel Core i7-4960X was the fastest desktop consumer processor in 2013 for overall performance, while the AMD FX-9590 offered a high clock speed (up to 5 GHz) and more cores (

for multithreaded tasks. The i7-4960X featured 6 cores and 15MB of L3 cache, making it a powerful option for high-end users.
The
Intel Core i7-5960X was the fastest desktop CPU in late 2014 for general use, being the first 8-core consumer processor supporting DDR4 memory. However, for gaming, the Intel Core i7-4790K was a strong contender, a quad-core "Devil's Canyon" CPU that reached a 4.0 GHz base clock speed and was a top-tier gaming processor at the time.
In 2015, there was no single "fastest" CPU, but the
Intel Core i7-5960X was considered the top multi-threaded consumer CPU, while the Intel Core i7-5775C excelled in single-threaded performance, and the Intel Xeon E7-8890 v3 dominated server performance. New processor architectures like Intel's Skylake were also launched in 2015, with the i7-6700K and i5-6600K becoming available and showing significant improvements over previous generations.
The
Intel Core i7-6950X was the fastest CPU released in 2016, featuring 10 cores and supporting high-end desktop (HEDT) use for consumers and creators, according to sources like CRN Magazine and PCWorld. It was the first 10-core processor for consumers and was designed to handle "mega-tasking" and complex creative work, notes Thurrott.com.
The
Intel Core i7-8700K was widely considered the fastest gaming CPU in 2017, offering strong single-core and multi-core performance. However, for the absolute highest performance, particularly in heavily threaded tasks, the AMD Threadripper 1950X stood out with its 16 cores and 32 threads, offering unprecedented multi-processing power for consumer desktops.
The
Intel Core i9-9900K was a top-performing CPU in 2018, offering excellent all-around performance for gaming and production tasks, while the Intel Core i7-8700K served as a practical and still high-performance gaming choice. For high-end workstation users, the AMD Threadripper 2990WX (released in late 2018) was the fastest option for heavy workloads.
In 2019, the
Intel Core i9-9900K was a top performer for gaming, while the
AMD Ryzen 9 3900X was a leading CPU for productivity, with Intel also offering the high-performance Intel Core i9-9900KS for those with extreme performance needs in gaming. The fastest CPU depended on the specific benchmark or application being used, as each processor excelled in different areas.
In 2020, for top gaming performance, the
Intel Core i9-10900K was considered one of the best, while the AMD Ryzen 5 5600X emerged as the best overall desktop CPU for various workloads, and for high-end workstation tasks, the Threadripper 3970X and 3990X were leading options.