Samsung Electronics is a diversified electronics and semiconductor manufacturer spanning memory, foundry, smartphones and displays. TSMC is a specialist pure-play foundry. Their revenues and margins are not directly comparable without separating memory cycles and end-product businesses.
| Lens | Samsung Electronics | TSMC |
|---|---|---|
| Reporting period | FY 2025 | FY 2025 / Q4 2025 |
| Official headline | Revenue KRW333.6 trillion; operating profit KRW43.6 trillion | Full-year gross margin 59.9%; Q4 revenue US$33.73 billion |
| Business scope | Memory, foundry, mobile, displays and appliances | Semiconductor manufacturing services |
| Key caution | Conglomerate mix and memory-price cycles | Customer concentration, geopolitics and leading-edge capex |
Samsung Electronics and TSMC can compete for the same investor capital or customer budget while producing revenue in different ways. Begin with the contract, customer, unit of sale, revenue-recognition rule and capital required to deliver it.
TSMC’s edge is foundry focus and customer neutrality. Samsung’s edge is vertical breadth and memory scale. The investment question is whether process execution and utilisation justify extraordinary capital intensity.
Use at least three years where the business structure has remained comparable. When an acquisition, demerger, listing, accounting change or segment reorganisation breaks the series, rebuild the history from restated disclosures or clearly mark the break.
Start with four separate layers. First, measure growth quality: identify whether expansion comes from volume, pricing, acquisitions, currency, incentives or a change in reporting perimeter. Second, test unit economics: ask what one additional customer, transaction, vehicle, store, workload or contract contributes after direct costs. Third, inspect capital intensity: include capital expenditure, leases, working capital, depreciation, stock compensation and long-term purchase commitments. Fourth, assess durability: customer concentration, switching costs, regulatory permissions, distribution control and the likelihood that competitors can copy the advantage.
For Samsung Electronics, the strongest disclosed metric should be paired with the cost or balance-sheet item that makes it possible. For TSMC, apply the same rule. This prevents a fast-growing operating statistic from being presented without the cash, capacity or incentive needed to produce it. It also prevents a mature company’s slower growth from being dismissed when it may be generating superior cash returns.
Create three scenarios rather than one forecast. The base case should use current disclosed trends; the downside case should include margin pressure, slower demand and higher funding or compliance cost; the upside case should require a specific operating improvement. Do not change growth, margin and valuation assumptions independently when they are economically linked. A higher growth assumption often needs more capital, customer acquisition or working capital.
Finally, keep business quality and share price separate. A stronger company can still be a poor investment at an excessive price, while a weaker company can appear statistically cheap because the market expects deterioration. This article does not use live market prices; insert the current price, share count, net debt and dilution only on the date of your own analysis.
Regulatory lens: Export controls, subsidies, environmental permits and geopolitical risk are central to the sector.
Comparing Samsung’s consolidated operating margin with TSMC’s foundry gross margin is invalid. First isolate Samsung’s semiconductor division, then compare wafer revenue, utilisation, node mix, gross margin and capex intensity.
The practical lesson is to reproduce the comparison in a simple worksheet. Put each company in a separate column, use the same period and currency, document adjustments, and keep accounting figures separate from operational indicators.
Use the current official instrument, portal or regulator publication before acting. This panel separates the category authority from page-specific references.