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TSMC is a pure-play foundry: it manufactures chips for customers and does not sell semiconductor products under its own name. Intel is an integrated device manufacturer (IDM): it designs and sells its own chips while also using Intel Foundry to manufacture products for Intel and, increasingly, to offer services to outside customers. The key difference is that TSMC’s business is organized around external customers’ designs; Intel’s foundry operation still serves primarily Intel’s own product groups.
What “pure-play foundry” and “IDM” mean
A foundry turns a customer’s chip design into manufactured silicon, typically providing wafer fabrication and, depending on the provider, related packaging and design-support services. The customer remains the product company: it defines and sells the chip, while the foundry supplies manufacturing capacity and process technology.
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TSMC describes itself as a pure-play foundry. Its 2025 annual report says it does not design, manufacture, or market semiconductor products under its own name, a policy it says prevents it from competing with customers through branded chips. TSMC Chairman and CEO C.C. Wei called adherence to that model central to the company’s success. TSMC 2025 Annual Report
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An IDM combines product design and sales with manufacturing. Intel fits that description: it designs and sells CPUs and other semiconductor products, and its Intel Foundry organization manufactures many of them. Intel also offers manufacturing-related services to external customers. Its 2025 Form 10-K describes both Intel Products and Intel Foundry, rather than a business devoted solely to contract manufacturing. Intel 2025 Form 10-K
How the two business models differ in practice
| Question | TSMC | Intel |
|---|---|---|
| Whose chips does the business make? | Customer products; TSMC says it does not sell semiconductor products under its own name. TSMC 2025 Annual Report | Both Intel products and external-customer products. Intel’s 2025 filing says nearly all Intel Foundry capacity was dedicated to Intel’s Client Computing Group and Data Center and AI products. Intel 2025 Form 10-K |
| What is the customer relationship? | A multi-customer manufacturing supplier. TSMC reported 534 customers in 2025. TSMC 2025 Annual Report | Intel product groups are major internal customers; external foundry service is a long-term strategy, and Intel reported few external customers to date. Intel 2025 Form 10-K |
| What services are described? | Wafer manufacturing across process technologies, with investment in advanced technologies and advanced packaging. TSMC 2025 Annual Report | External offerings include wafer fabrication, advanced packaging, chiplet integration, and design enablement. Intel says its packaging services can also be used with wafers made at other foundries. Intel 2025 Form 10-K |
| How established is the external foundry business? | TSMC reported 534 customers and 12,682 products manufactured in 2025. TSMC 2025 Annual Report | Intel reported few external customers to date; its 2025 filing does not provide an equivalent external-customer or product count. Intel 2025 Form 10-K |
| Does the manufacturer also sell chips? | Not under the TSMC name, according to the company’s stated pure-play model. TSMC 2025 Annual Report | Yes. Intel sells its own semiconductor products while seeking outside foundry customers. Intel says it has taken steps to provide service and data/IP separation; that claim is a company statement, not an independent assessment. Intel 2025 Form 10-K |
TSMC’s scale is built around outside customers
TSMC’s 2025 figures illustrate the breadth and scale of its customer-facing operation. These are company-reported figures, not independently measured market-share statistics.
| TSMC measure | Reported 2025 figure | What it measures |
|---|---|---|
| Customers | 534 | Customers served during 2025. |
| Products manufactured | 12,682 | Different products manufactured during 2025. |
| Process technologies | 305 | Distinct process technologies deployed in 2025. |
| Wafer shipments | 15.0 million 12-inch-equivalent wafers | Shipments during 2025. |
| Annual capacity | More than 17 million 12-inch-equivalent wafers | Annual capacity in 2025, not the number of wafers shipped. |
| Advanced-technology share of wafer revenue | 74% | TSMC’s 2025 share from technologies it classifies as 7-nanometer and beyond. |
TSMC reported customer demand in areas including high-performance computing, smartphones, IoT, automotive, and digital consumer electronics. Its 2025 annual report also gave US$122.42 billion in consolidated revenue and a 59.9% gross profit margin; both are company-wide measures, not standalone foundry-segment figures. TSMC 2025 Annual Report
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Intel’s filing does not disclose a directly equivalent external-customer count or product count. Comparing TSMC’s customer totals with Intel’s total output, or TSMC’s company-wide financial figures with Intel Foundry’s segment figures, would mix different reporting scopes. The company disclosures also do not establish an independent, directly comparable market-share or cost statistic.
Intel is building an external foundry business alongside its product business
Intel Foundry is not merely a factory department serving a fixed internal workload: Intel says it intends to attract outside customers. But the current scale matters. In its 2025 Form 10-K, Intel said nearly all of its foundry manufacturing capacity was dedicated to its own Client Computing Group and Data Center and AI products, and that it had few external customers to date. Intel characterized external foundry as a key long-term strategy, not as a mature operation already comparable to TSMC’s customer base. Intel 2025 Form 10-K
Intel has also changed the way it organizes manufacturing internally. In a 2023 update, the company described a manufacturing-group profit-and-loss structure, internal market-based pricing, and a foundry-style relationship between product groups and manufacturing. Intel presented these measures as ways to improve cost visibility and make manufacturing compete for volume. They explain the intended operating model; Intel’s 2025 filing is the more current source for the external business’s status. Intel Provides Update on Internal Foundry Model
Node roadmaps show why outside customers matter to Intel
Intel said 18A entered high-volume production in 2025 and that it was seeking to establish the process as a significant node for government and enterprise foundry customers. This is a reported production milestone and a stated customer goal; it does not mean Intel had already secured a large external workload for the node. Intel 2025 Form 10-K
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Intel described 14A as its first process designed from inception for external customers. Its filing says 14A needs wafer volumes beyond those Intel expects from its own products for economic efficiency. Intel warned that it may pause or discontinue 14A and later leading-edge process development if it does not secure a significant external customer. That makes customer commitments and expected volume part of the roadmap’s business case, not just a sales target.
Manufacturing footprint: separate operating capacity from plans
TSMC reported more than 17 million 12-inch-equivalent wafers of annual capacity in 2025. Its annual report described operations in Taiwan and subsidiaries or affiliates in the United States, Japan, and China, as well as a Dresden fab under construction. It also described fab expansion plans in Arizona, Japan, and Germany; planned facilities should not be counted as operating capacity. TSMC 2025 Annual Report
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Intel’s 2025 filing described changes to its expansion plans: construction of its Ohio fab was slowed, and planned German and Polish expansions were discontinued. Intel’s U.S. manufacturing presence may be relevant to customers weighing geography and supply resilience, but announced or adjusted projects are not the same as completed, production-ready capacity. Intel 2025 Form 10-K
What a chip designer should compare before choosing
Neither business model alone tells a customer which provider is suitable. A fabless chip company evaluating manufacturing-related services should compare the specific project against operational requirements:
- Process and design ecosystem: Confirm that the required process technology is available and that the design can use the provider’s process-design rules and support ecosystem.
- Production readiness and volume: Ask whether the needed process is in production or still on a roadmap, what capacity is available, and whether the planned volume can be supported.
- Packaging and chiplet needs: Determine whether wafer fabrication, advanced packaging, chiplet integration, or a combination is required. Intel says its packaging services can be paired with wafers made elsewhere.
- Geography and resilience: Assess where relevant manufacturing steps are operating, rather than relying on announced construction plans, and consider the supply-chain footprint needed for the product.
- Customer relationship and separation: Evaluate support arrangements and how design data and intellectual property are handled, especially when considering an IDM that also sells products.
- Economics and qualification: Obtain project-specific pricing, schedule, yield, and qualification information directly. The cited company filings do not independently compare customer experience, yield, pricing, or design portability.
In short, TSMC’s defining feature is a foundry business dedicated to customer products. Intel combines an IDM’s own-product manufacturing with an effort to win more external foundry work. The distinction matters for customer relationships and business maturity, but the right supplier still depends on the process, packaging, scale, geography, and production requirements of a particular chip.
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