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Shrinking Circuits

Short answer: The first integrated circuits (1958–60) had just one to four transistors. Intel's 4004 microprocessor (1971) had 2,300 on a 12 mm² die built with a 10-micrometer process.

Today a single chip such as NVIDIA's GH100 packs 80 billion transistors onto 814 mm², thanks to decades of shrinking features. Even so, modern node names like '5 nm' are generation labels, not literal transistor sizes.

VideoWrite-up9 sources

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What should you know about Shrinking Circuits?

Quick facts. Each one stands alone and has a stable ID you can cite.

  1. Intel's first microprocessor, the 4004 (1971), had 2,300 transistors. NVIDIA's GH100 chip has 80 billion on one 814 mm² die.

    DD-018-F01 · Write-up · Exhibit B (2,300 transistors in 1971)

  2. Process names like '7 nm' are generation labels: a '7 nm' transistor's gate is actually about 15 nm long.

    DD-018-F02 · Write-up · Exhibit F ('3 nm' isn't 3 nm)

Video transcript: Shrinking Circuits: One Chip Can Now Hold 80 Billion Transistors

DID YOU KNOW? The progression of semiconductor manufacturing can be seen in the astonishing shrinking of transistor features over the past several decades. Early integrated circuits contained only a few thousand transistors, while modern processors can pack tens of billions onto a piece of silicon only a few hundred square millimeters across. Transistors that once measured micrometers across have progressed through nanometer-scale process generations. NOW YOU KNOW!

Burned-in captions, read frame by frame (see transcript.md) · 22.5s Reel ·

Video coming soonShrinking Circuits · Instagram Reel
Shrinking Circuits: One Chip Can Now Hold 80 Billion Transistors Instagram Reel · · 22.5s

The write-up

One chip can now hold 80 billion transistors. In 1971, Intel's first microprocessor had 2,300.

  1. Exhibit A

    It started with one transistor

    Jack Kilby's 1958 'solid circuit' had a single transistor. Fairchild's first planar integrated circuit, in 1960, had four transistors and five resistors.

  2. Exhibit B

    2,300 transistors in 1971

    Intel's 4004, released November 15, 1971, was the first commercially available microprocessor: a whole 4-bit CPU on one chip with 2,300 transistors.

  3. Exhibit C

    Ten micrometers

    The 4004 was built on a 10 µm (micrometer) process on a die of about 12 mm². Its minimum line width was 10 microns.

  4. Exhibit D

    From 10 µm to about 10 nm

    Shrinking transistor features drove the growth in transistor count, from 10 µm in the early 1970s to around 10 nanometres by 2017: a thousandfold shrink.

  5. Exhibit E

    Tens of billions today

    NVIDIA's full GH100 die, which powers the H100, has 80 billion transistors on a single 814 mm² piece of silicon, made on TSMC's 4N process.

  6. Exhibit F

    '3 nm' isn't 3 nm

    Node names stopped matching physical sizes about two decades ago. Most critical features of a '7 nm' transistor are much larger than 7 nm; its gate is about 15 nm long, for example.

Questions people ask about Shrinking Circuits

How many transistors did Intel's 4004, the first commercial microprocessor (1971), have?

The 4004 squeezed 2,300 transistors onto one chip.

Source: Write-up · Exhibit B (2,300 transistors in 1971) · Intel 4004 Microprocessor (Smithsonian National Museum of American History); Intel's Microprocessor (Computer History Museum, Revolution); Microprocessors: the engines of the digital age (Proc. Royal Society A, Furber 2017)

What process feature size was the Intel 4004 made with?

The 4004 used a 10 µm silicon-gate pMOS process.

Source: Write-up · Exhibit C (Ten micrometers) · Intel's Microprocessor (Computer History Museum, Revolution); Microprocessors: the engines of the digital age (Proc. Royal Society A, Furber 2017); Intel 4004 Microprocessor (Smithsonian National Museum of American History)

How many transistors are on NVIDIA's full GH100 die (the chip in the H100)?

The GH100 has 80 billion transistors on an 814 mm² die.

Source: Write-up · Exhibit E (Tens of billions today) · NVIDIA Hopper Architecture In-Depth (NVIDIA Technical Blog); Nvidia unveils next-gen GPU architecture (Embedded.com)

How many transistors did Fairchild's first planar integrated circuit (1960) have?

It had four transistors and five resistors.

Source: Write-up · Exhibit A (It started with one transistor) · 1958: All semiconductor 'Solid Circuit' is demonstrated (Computer History Museum, The Silicon Engine); 1960: First Planar Integrated Circuit is Fabricated (Computer History Museum, The Silicon Engine)

What does a modern node name like '7 nm' actually tell you?

Node names stopped matching physical sizes about two decades ago. A '7 nm' transistor's gate is about 15 nm long.

Source: Write-up · Exhibit F ('3 nm' isn't 3 nm) · A Better Way to Measure Progress in Semiconductors (IEEE Spectrum); Experts Invent a New Way to Track Semiconductor Technology (IEEE Spectrum)

Test Your Knowledge

All quizzes →

5 questions, all from this case file. Answers are revealed instantly.

  1. How many transistors did Intel's 4004, the first commercial microprocessor (1971), have?

    1. 23
    2. 2,300
    3. 230,000
    4. 2.3 million
    Show the answer

    Answer: B. 2,300 The 4004 squeezed 2,300 transistors onto one chip. Source: Write-up · Exhibit B (2,300 transistors in 1971) · Intel 4004 Microprocessor (Smithsonian National Museum of American History); Intel's Microprocessor (Computer History Museum, Revolution); Microprocessors: the engines of the digital age (Proc. Royal Society A, Furber 2017)

  2. What process feature size was the Intel 4004 made with?

    1. 10 micrometers
    2. 10 nanometers
    3. 1 millimeter
    4. 100 nanometers
    Show the answer

    Answer: A. 10 micrometers The 4004 used a 10 µm silicon-gate pMOS process. Source: Write-up · Exhibit C (Ten micrometers) · Intel's Microprocessor (Computer History Museum, Revolution); Microprocessors: the engines of the digital age (Proc. Royal Society A, Furber 2017); Intel 4004 Microprocessor (Smithsonian National Museum of American History)

  3. How many transistors are on NVIDIA's full GH100 die (the chip in the H100)?

    1. 8 million
    2. 800 million
    3. 80 billion
    4. 8 trillion
    Show the answer

    Answer: C. 80 billion The GH100 has 80 billion transistors on an 814 mm² die. Source: Write-up · Exhibit E (Tens of billions today) · NVIDIA Hopper Architecture In-Depth (NVIDIA Technical Blog); Nvidia unveils next-gen GPU architecture (Embedded.com)

  4. How many transistors did Fairchild's first planar integrated circuit (1960) have?

    1. Four
    2. Forty
    3. Four hundred
    4. Four thousand
    Show the answer

    Answer: A. Four It had four transistors and five resistors. Source: Write-up · Exhibit A (It started with one transistor) · 1958: All semiconductor 'Solid Circuit' is demonstrated (Computer History Museum, The Silicon Engine); 1960: First Planar Integrated Circuit is Fabricated (Computer History Museum, The Silicon Engine)

  5. What does a modern node name like '7 nm' actually tell you?

    1. The exact length of every transistor gate
    2. The thickness of the silicon wafer
    3. Mostly the process generation; real features are larger
    4. The width of the chip's copper wires
    Show the answer

    Answer: C. Mostly the process generation; real features are larger Node names stopped matching physical sizes about two decades ago. A '7 nm' transistor's gate is about 15 nm long. Source: Write-up · Exhibit F ('3 nm' isn't 3 nm) · A Better Way to Measure Progress in Semiconductors (IEEE Spectrum); Experts Invent a New Way to Track Semiconductor Technology (IEEE Spectrum)

Cite this case file

Easterling, Marcus. "Shrinking Circuits." The Detail Department (DetailEnjoyer), case file DD-018, last updated Aug 16, 2026. https://detailenjoyer.com/case/shrinking-circuits/

Permalink: https://detailenjoyer.com/case/shrinking-circuits/ · Last updated

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Cite a single fact by its ID, for example DD-018-F01 → https://detailenjoyer.com/case/shrinking-circuits/#DD-018-F01

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