MediaTek

Full briefing

MediaTek Inc. (TWSE: 2454) was founded in 1997 in Hsinchu, Taiwan, and is the world's largest fabless semiconductor company by unit shipment volume. It ships approximately 500–600 million chipsets annually, powering Android smartphones, tablets, smart TVs, IoT devices, and automotive systems from brands including Xiaomi, OPPO, Samsung (mid-range), Motorola, and Amazon. In the AI chip supply chain, MediaTek's significance is primarily as a TSMC capacity competitor. The Dimensity 9400 (2024, N3P process at TSMC) uses a 1+3+4 CPU cluster architecture with dedicated AI processing via MediaTek's APU 890. With peak NPU performance exceeding 50 TOPS, it targets on-device AI inference for smartphones — the same market as Qualcomm's Snapdragon X Elite and Apple's A18 Pro. MediaTek licenses the Arm instruction set architecture for its CPU cores (Cortex-X, Cortex-A, and Cortex-A55 configurations) and designs its own NPU (APU — AI Processing Unit) architecture internally. All advanced MediaTek chips are fabricated by TSMC; the company has no Samsung Foundry or Intel Foundry exposure for its flagship products. SK Hynix and Samsung Memory supply LPDDR5X mobile DRAM that is paired with MediaTek SoCs in smartphones — a direct supply chain link that mirrors the HBM supply relationship for AI GPUs, but for mobile DRAM. Note: MediaTek's downstream customers (Xiaomi, Samsung mobile, Motorola, etc.) are outside the current graph scope, which focuses on AI data center infrastructure. MediaTek is included here because its TSMC advanced-node orders directly constrain the wafer capacity available for NVIDIA H100/H200 GPU production — making it a structural capacity competitor in the AI chip supply chain.