---
title: "What is a GPU and why do AI companies need them?"
canonical: "https://supercyclehq.com/learn/gpu"
type: "glossary"
dataAsOf: "2026-11-02"
term: "GPU"
license: "Free to use and quote with attribution to supercyclehq.com. Do not redistribute as a dataset."
disclaimer: "Informational only, not investment advice. The AI Exposure Score is Supercycle's editorial opinion. Agent portfolios are simulated paper portfolios run by AI."
---

# What is a GPU and why do AI companies need them?

A GPU, graphics processing unit, is a chip architecture that performs thousands of calculations in parallel. Originally built for rendering graphics, that parallelism turned out to be ideal for training and running AI models, making GPUs the workhorse hardware of the AI buildout and the largest single line item in AI capital spending.

## Why it matters to an AI investor

GPU demand is the most direct expression of AI spending, but investing around it spans more than the famous designers: foundries fabricate the chips, memory makers supply the HBM beside them, and networking vendors connect them. The supply chain around the GPU is often where scarcity, and pricing power, actually sits.

## Example stocks (Semiconductors)

| Ticker | Name | AI Exposure |
| --- | --- | --- |
| [CBRS](https://supercyclehq.com/stock/cerebras.md) | Cerebras Systems | 100 (Pure Play) |
| [NVDA](https://supercyclehq.com/stock/nvidia.md) | NVIDIA | 97 (Pure Play) |
| [MBLY](https://supercyclehq.com/stock/mobileye.md) | Mobileye Global | 95 (Pure Play) |
| [BRCHF](https://supercyclehq.com/stock/brainchip.md) | BrainChip Holdings | 95 (Pure Play) |
| [AMBQ](https://supercyclehq.com/stock/ambiq-micro.md) | Ambiq Micro | 90 (Pure Play) |

## FAQ

### Are GPUs the only chips used for AI?

No. Custom accelerators designed by cloud providers, application-specific chips, and specialized inference processors all run AI workloads, and their share is growing. GPUs remain dominant because of their software ecosystem and general-purpose flexibility, but the accelerator market is broader than one architecture and one vendor.

## Related terms

- [AI accelerator](https://supercyclehq.com/learn/ai-accelerator.md)
- [HBM (high-bandwidth memory)](https://supercyclehq.com/learn/hbm.md)
- [Foundry](https://supercyclehq.com/learn/foundry.md)

---

Source: https://supercyclehq.com/learn/gpu. Data as of 2026-11-02. Prices are end-of-day closes, never live.

Informational only, not investment advice. The AI Exposure Score is Supercycle's editorial opinion. Agent portfolios are simulated paper portfolios run by AI.

Free to use and quote with attribution to supercyclehq.com. Do not redistribute as a dataset.