What Drives the Global CPU Market? A Deep Dive into Architecture, Products, and Supply Chains

1. Concept and Definition

CPU (Central Processing Unit) is the core component of a computer, built from large‑scale integrated circuits, responsible for executing instructions and controlling data flow. It comprises arithmetic logic units, control units, caches, internal data and control buses, and input/output interfaces.

2. Product Classification

CPUs form a large family that can be categorized by instruction set architecture and by application domain.

2.1 Based on Instruction Set

CISC – primarily the x86 architecture, characterized by a rich and complex instruction set.

RISC – includes ARM, RISC‑V, MIPS, and POWER architectures, featuring simplified instruction sets and efficient pipelines.

2.2 Based on Application Domain

General‑purpose processors (MPU) – used in servers, desktops, laptops, and supercomputers; also adopted in security and embedded systems that require high performance.

Microcontrollers (MCU) – low‑power, low‑frequency (<100 MHz) chips integrating CPU core, memory, and peripheral interfaces for IoT, industrial control, consumer electronics, and automotive applications.

Specialized processors – such as digital signal processors (DSP) for real‑time signal processing, and other domain‑specific accelerators.

3. Industry Chain and Supply Relationships

3.1 Upstream

The upstream segment includes electronic design automation (EDA) tools and IP core services that support IC design, as well as semiconductor manufacturing equipment. Most upstream vendors are foreign companies with dominant market positions, resulting in low domestic localization.

3.2 Downstream

Downstream activities cover wafer fabrication, packaging, and testing. Leading foundries such as TSMC, Samsung, GlobalFoundries, and others dominate advanced nodes (e.g., 5 nm). Domestic fabs like SMIC and Huahong hold a modest market share (<10 %) with process nodes around 14 nm. Test equipment providers include Advantest and Hontec.