# Shrinking Circuits (DD-018)

> 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.

- Department: Tech
- First published: 2026-08-16
- Last updated: 2026-08-16
- Permalink: https://detailenjoyer.com/case/shrinking-circuits/
- Author: Marcus Easterling (DetailEnjoyer), The Detail Department

## On the timeline

- **1958**: Jack Kilby's 'solid circuit' has a single transistor
- **1960**: Fairchild's first planar integrated circuit has four transistors
- **Nov. 15, 1971**: Intel releases the 4004, the first commercial microprocessor, with 2,300 transistors
- **2017**: Transistor features reach around 10 nanometers, a thousandfold shrink since the early 1970s

Full timeline: https://detailenjoyer.com/timeline/?case=shrinking-circuits

## Quick facts

- **DD-018-F01**: Intel's first microprocessor, the 4004 (1971), had 2,300 transistors. NVIDIA's GH100 chip has 80 billion on one 814 mm² die. _(Write-up · Exhibit B (2,300 transistors in 1971))_
- **DD-018-F02**: Process names like '7 nm' are generation labels: a '7 nm' transistor's gate is actually about 15 nm long. _(Write-up · Exhibit F ('3 nm' isn't 3 nm))_

## Write-up

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

1. **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. **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. **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. **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. **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. **'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.

## Related case files

- [Photon Film (DD-067)](https://detailenjoyer.com/case/photon-film/): Where the shrinking leads: MegaX, the first megapixel camera made of single-photon pixels.
- [Data Centers (DD-029)](https://detailenjoyer.com/case/data-centers/): Chip efficiency gains behind 'high-efficiency chip design'.
- [Mandelbulbs (DD-047)](https://detailenjoyer.com/case/mandelbulbs/): The computing power that made deep fractal renders possible.
- [Energizer (DD-236)](https://detailenjoyer.com/case/energizer/): I linked more electronics manufacturing
- [The Future Is Now (DD-238)](https://detailenjoyer.com/case/the-future-is-now/): I linked how chips got smaller
- [OVER 0 (DD-284)](https://detailenjoyer.com/case/over-0/): I linked the electronics that replaced gear calculators
- [Chip Change (DD-626)](https://detailenjoyer.com/case/chip-change/): How the chips got so small
- [Atomic Stop-motion (DD-663)](https://detailenjoyer.com/case/atomic-stop-motion/): Another push toward atomic-scale computing

## Reel vs. record

- **Imprecise**: 'Early integrated circuits contained only a few thousand transistors.' The very first ICs had far fewer: Kilby's 1958 circuit had one transistor, and Fairchild's 1960 planar IC had four. 'A few thousand' fits early-1970s chips like the Intel 4004 (2,300). [CHM Silicon Engine; Smithsonian; CHM Revolution]
- **Unit slip**: 'a piece of silicon only a few hundred square millimeters across'. Square millimeters measure area, not width. Big modern dies are a few hundred mm² in area (GH100: 814 mm², about 28.5 mm on a side). [NVIDIA; Embedded.com]
- **Context**: 'nanometer-scale process generations' is fair, but today's node names (7 nm, 5 nm, 3 nm) are labels, not physical transistor dimensions. [IEEE Spectrum, x2]

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

- Duration: 22.5 s · Published: 2026-08-16
- File: https://detailenjoyer.com/assets/videos/DcHGRtIR28v.mp4

### Transcript

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!

## Questions & answers

**Q: How many transistors did Intel's 4004, the first commercial microprocessor (1971), have?**  
A: 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))_

**Q: What process feature size was the Intel 4004 made with?**  
A: 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))_

**Q: How many transistors are on NVIDIA's full GH100 die (the chip in the H100)?**  
A: 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))_

**Q: How many transistors did Fairchild's first planar integrated circuit (1960) have?**  
A: 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))_

**Q: What does a modern node name like '7 nm' actually tell you?**  
A: 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))_

## Sources

- [1958: All semiconductor 'Solid Circuit' is demonstrated (Computer History Museum, The Silicon Engine)](https://www.computerhistory.org/siliconengine/all-semiconductor-solid-circuit-is-demonstrated/)
- [1960: First Planar Integrated Circuit is Fabricated (Computer History Museum, The Silicon Engine)](https://www.computerhistory.org/siliconengine/first-planar-integrated-circuit-is-fabricated/)
- [Intel 4004 Microprocessor (Smithsonian National Museum of American History)](https://americanhistory.si.edu/collections/object/nmah_713495)
- [Intel's Microprocessor (Computer History Museum, Revolution)](https://www.computerhistory.org/revolution/story/285)
- [Microprocessors: the engines of the digital age (Proc. Royal Society A, Furber 2017)](https://royalsocietypublishing.org/doi/10.1098/rspa.2016.0893)
- [NVIDIA Hopper Architecture In-Depth (NVIDIA Technical Blog)](https://developer.nvidia.com/blog/nvidia-hopper-architecture-in-depth/)
- [Nvidia unveils next-gen GPU architecture (Embedded.com)](https://www.embedded.com/nvidia-unveils-next-gen-gpu-architecture/)
- [A Better Way to Measure Progress in Semiconductors (IEEE Spectrum)](https://spectrum.ieee.org/a-better-way-to-measure-progress-in-semiconductors)
- [Experts Invent a New Way to Track Semiconductor Technology (IEEE Spectrum)](https://spectrum.ieee.org/experts-invent-a-new-way-to-track-semiconductor-technology)

## 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/