Apple Outside Looking In?

For more than a decade, Apple (NASDAQ: AAPL) sat at the center of the global technology supply chain. Its sheer scale allowed it to dictate pricing, secure early access to advanced process nodes, and influence capacity planning across suppliers. Being Apple’s primary supplier meant predictable volumes and long production runs.

That era is gone.

The semiconductor supply chain is no longer organized around smartphones. It has been reconfigured around high-performance computing (HPC) and artificial intelligence. The shift is visible in hard data, especially through Taiwan Semiconductor Manufacturing Co.’s (NYSE: TSM) revenue mix.

Check out Chart 1. TSMC’s HPC revenue increased from approximately NT$126.7 billion in Q1 2021 to roughly NT$617.1 billion (US$19.44 billion) by Q4 2025. That’s a nearly fivefold increase in less than five years. The steepest increase came after 2023, as AI workloads moved from experimentation to large-scale deployment.

This growth fundamentally reordered foundry priorities. HPC designs consume more leading-edge wafers, require advanced packaging, and generate higher margins than smartphone processors. As a result, HPC designs increasingly determine where TSMC allocates capital, which process nodes are expanded first, and which customers receive priority when capacity is tight.

In early 2021, high-performance computing accounted for roughly 35% of TSMC’s total revenue, which is big, but still behind smartphones. By Q4 2025, HPC’s share had risen to a dominant 59%, making HPC the reference point for capital allocation, node priorities, and customer leverage. Smartphone volumes—even at Apple’s scale—no longer anchored the supply chain.

Chart 1 (Revenues in New Taiwan Dollars)

Big Apple, Not Big Enough

High-performance computing is not a single end market. It includes AI accelerators and GPUs, data-center CPUs, networking and switching silicon, and other large, high-complexity chips that prioritize performance, bandwidth, and power efficiency over unit cost. These products overwhelmingly use leading-edge process nodes and rely heavily on advanced packaging technologies such as CoWoS and other multi-die integration schemes. As a result, HPC wafers generate higher revenue per wafer and higher margins than smartphone processors.

Apple’s volumes remain enormous. But the customer that shapes the supply chain is not the one that ships the most units, but the one that drives the largest incremental investment. Today, that role belongs to AI and cloud customers whose spending is expanding faster, whose margins are higher, and whose silicon requirements are more complex.

In 2022, TSMC derived more than four times as much revenue from Apple as from Nvidia: $13 billion versus $2.9 billion. Indeed, back then, AMD (NASDAQ: AMD), Broadcom (NASDAQ: AVGO), MediaTek (TW 2454), Qualcomm (NASDAQ: QCOM), and Intel (NASDAQ: INTC) were all bigger customers for TSMC than Nvidia (NASDAQ: NVDA). (See Table 1.)

By 2025, Nvidia’s contribution was 40% higher than Apple’s, and headed higher still.

The steady decline in Apple’s share of TSMC revenues—from over 22% in 2022 to an estimated 15.8% by 2025—reflects not weakening demand for Apple products, but the effect of faster-growing AI-centric customers (See Table 2). This is how supplier power shifts in practice: not through customer losses, but through the emergence of customers with higher growth rates and higher marginal profitability. As Apple’s share falls into the mid-teens, it loses its ability to dominate foundry roadmaps. That power shifts to HPC makers, with Nvidia at the core.

Investors Beware!

Once this shift occurs, second-order effects cascade through the ecosystem as AI platforms offer higher average selling prices, longer product lifecycles, and more predictable utilization than consumer devices.

Memory suppliers prioritize long-term AI contracts over mobile DRAM allocations. Substrate suppliers direct constrained materials toward customers willing to sign multi-year commitments and provide deposits. Assembly and test partners reorient production toward server and accelerator platforms with higher content per unit. Contract manufacturers such as Foxconn (TW 2354) increasingly derive growth from AI servers rather than consumer electronics.

Those shifts reshape who gets priority when capacity is tight. Apple is now competing for supply rather than commanding it.

Investors who continue to view Apple as the anchor customer in advanced semiconductors are looking at yesterday’s supply chain.