References are numbered in [brackets], which are listed here. A number after the dot gives the page in the source.

Last updated: 2023 October 25.

2003

January 7

• Intel announces the new brand name for its next-generation mobile processor technology: Centrino. [1559]

January 14

• Intel introduces the 2.4 GHz Pentium 4-M processor for portable computers. Price is US562ドル in 1000-unit quantities. [1559]
• Intel introduces the 2 GHz mobile Celeron processor. Price is US149ドル in 1000-unit quantities. [1559]
• Intel introduces the 900 and 933 MHz Pentium III-M low-power mobile processors. [1559]
• Intel introduces the 800 and 866 MHz Celeron low-power mobile processors. [1559]

February 10

• Advanced Micro Devices releases the 2500+, 2800+, and 3000+ Athlon XP desktop processors. They feature 512 kB level 2 cache, 333 MHz system bus, 0.13-micron process, 101 mm2 die size. Model, speed, and price (in 1000-unit quantities) respectively: 2500+ 1.833 GHz, 2800+ 2.083 GHz, US375,ドル 3000+ 2.167 GHz US588ドル. [1470.32] [1559] [1774.32] [1775.8]

March 12

• Intel releases Pentium-M processors based on the Centrino architecture. [1777.91] [2088.46] [2089.24]
• Advanced Micro Devices introduces twelve new Athlon XP-M mobile processors, 25 to 72 watts power usage, up to 2.13 GHz speed. [1442.25] [1777]

March

• Intel announces availability of the PXA255 processor, at 400 MHz speed, 200 MHz bus, 1.3-volt operation. [1777.90]

March 24

• Intel begins providing samples of 200-400 MHz XScale processors to handheld device makers. The processors incorporate StrataFlash memory, allowing smaller handheld computers with improved battery life. [1559]

January-March

• Market share of Intel-compatible microprocessors during January-March: Advanced Micro Devices 16.6%. [1559]

April 1

• Intel releases the 2.3 and 2.4 GHz Celeron processor, for low-price computers. Prices are US117ドル and US127,ドル respectively, in 1000-unit quantities. [1559]

April 16

• Intel releases the 2.5 GHz Pentium 4-M processor, for portable computers. Price is US562ドル in 1000-unit quantities. [1559]
• Intel releases the 2.2 GHz Celeron processor, for low-price computers. Price is US149ドル in 1000-unit quantities. [1559]
• Intel releases the 1.26 GHz Celeron processor, for mininotebook computers. Price is US107ドル in 1000-unit quantities. [1559]

April 18

• Intel halts the release of the 3 GHz Pentium 4 with 800 MHz bus, due to an anomoly. [1777.7]
  
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April 21

• Intel releases the 3 GHz Pentium 4 processor with 800 MHz front-side bus. Price is US417ドル in 1000-unit quantities. The previously discovered problem is resolved by a software patch. [1599.8]

April 22

• Advanced Micro Devices releases the Opteron processor. It features 32-bit and 64-bit instruction operation, without requiring 32-bit code to be re-written. [1559] (April 21 [1695.20]) (March [2321.34])
• Advanced Micro Devices releases the Athlon XP 2500+ processor. Price is US124ドル in 1000-unit quantities. [1599.8]

May 6

• Advanced Micro Devices launches the Athlon MP 2800+ processor for workstations. Price is US275ドル in 1000-unit quantities. [1559]

May 13

• Advanced Micro Devices releases the Athlon XP 3200+ desktop processor. It features 400 MHz system bus. Price is US464ドル in 1000-unit quantities. [1559] (May 26 [1599.8])

May 21

• Intel releases the 2.4, 2.6, and 2.8 GHz Pentium 4 processor with 800 MHz front-side bus. Prices are US180,ドル US228,ドル and US278ドル respectively in 1000-unit quantities. [1599.8] [1788.8]

May 26

• Advanced Micro Devices releases the Athlon XP 3200+ processor. It features 333 MHz front-side bus. Price is US464ドル in 1000-unit quantities. [1788.8]
• Advanced Micro Devices releases the Athlon XP 3000+ desktop processor. It features 400 MHz system bus. Price is US280ドル in 1000-unit quantities. [1599.8]

June 9

• 25th anniversary of 8086. Earlier this year, 1 billionth based on x86 shipped. To date, AMD has shipped about 200 mill x86 processors. [1559]

June 11

• Intel releases 2.4, 2.66, 2.8, and 3.06 GHz mobile Pentium 4 processors. Each features SpeedStep battery-saving technology, and 533 MHz system bus. Prices range from US186ドル to US417ドル in 1000-unit quantities. [1559]
• Intel releases 2.2, 2.3, and 2.4 GHz mobile Celeron processors. Prices range from US74ドル to US84ドル in 1000-unit quantities. [1559]
• Intel releases the 2.6 GHz Pentium 4-M processor. Price is US562ドル in 1000-unit quantities. [1559]
• Intel releases the 2.4 GHz low power mobile Celeron processor. Price is US149ドル in 1000-unit quantities. [1559]

June 23

• Intel releases the 3.2 GHz Pentium 4 processor. It features Hyper-Threading, and system bus up to 800 MHz. Price is US637ドル in 1000 unit quantities. [1559] [1599.8] [1788.8]

June 25

• Intel releases 2.5 and 2.6 GHz Celeron processors. They feature 218 kB cache, and 400 MHz system bus. Prices are US89ドル (2.5 GHz) and US103ドル (2.6 GHz) in 1000-unit quantities. [1559]

June 30

• Intel debuts the Itanium 2 processor. Code-name during development was Madison. [1559]

April-June

• Market share of PC processor shipments during April to June: Intel 82.6%. [1559]

(month unknown)

• National Semiconductor sells its Geode processor division to Advanced Micro Devices. [1559]

September 16

• Intel announces the 3.2 GHz Pentium 4 Extreme Edition. It features 2 MB level three cache. [1559]

September 23

• In San Francisco, California, Advanced Micro Devices launches the 64-bit Athlon 64 processor. The 2.2 GHz Athlon 64 FX-51 is priced at US733ドル in 1000-unit quantities. The Athlon 64 3200+ is priced at US417,ドル and the Athlon 3000+ is priced at US278ドル. [1453.30] [1559] [1600.8] [1602.8] [1727.45] [1897.132] [2462.57]

July-September

• Market share of Intel-compatible microprocessors during July-September: Intel 83.3%, Advanced Micro Devices 15.1-15.7%. [1559]

November 3

• Intel releases the 3.2 GHz Pentium 4 Extreme Edition processor, with 2 MB cache. Price is US925ドル in 1000-unit quantities. [1600.8]

December

• Advanced Micro Devices releases the 2 GHz Athlon 64 3000+ processor. It features 512 kB level 2 cache. Price is US218ドル in 1000-unit quantities. [1559]

October-December

• Market share of x86 personal computer processors in the USA during October to December: Intel 83.7%, Advanced Micro Devices 14.7%. [1559]
• Market share of PC processor shipments during October to December: Intel 82.8%, Advanced Micro Devices 15.5%. [1559]

Year

• Market share of PC processor shipments during the year: Intel 82.9%, Advanced Micro Devices 15.4%. [1559]