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Silicon Laboratories vs Rambus: SLAB and RMBS compared
Silicon Laboratories is the larger company: $228M of revenue in its latest quarter (Q2 2026) against $218M for Rambus (Q3 2026). Rambus is growing faster (+22% against +18% a year earlier). Rambus is more profitable, with an operating margin of 38.3% against -4.7%.
Where the money goes: SLAB and RMBS
Silicon Laboratories (SLAB) · Q2 2026
Silicon Laboratories, Q2 2026: revenue $228M (+18% year over year), operating margin -4.7%, net loss $10.6M, operating cash flow −$14.5M. The chart follows the revenue to costs, profit and cash.
Rambus (RMBS) · Q3 2026
Rambus, Q3 2026: revenue $218M (+22% year over year), operating margin 38.3%, net earnings $74.6M, operating cash flow $102M. The chart follows the revenue to costs, profit and cash.
| Silicon Laboratories (SLAB) | Rambus (RMBS) | |
|---|---|---|
| Latest quarter | Q2 2026 | Q3 2026 |
| Revenue | $228M | $218M |
| Revenue growth, Y/Y | +18% | +22% |
| Gross margin | — | 78.3% |
| Operating margin | -4.7% | 38.3% |
| Net earnings | −$10.6M | $74.6M |
| Net margin | -4.6% | 34.2% |
| Operating cash flow | −$14.5M | $102M |
| Free cash flow | — | $95.9M |
| Market value | $7.4B | $9.5B |
| P/E | — | 35.9× |
| Analysts’ mean target | $222.86 | $140.57 |
Where the revenue comes from
Silicon Laboratories
- Industrial & Commercial: $135M (59%)
- Home & Life: $93.2M (41%)
Rambus
- Product Revenue: $114M (52%)
- Royalty: $77.0M (35%)
- Contractandother Revenue: $27.0M (12%)
Questions
Which is bigger, Silicon Laboratories or Rambus?
Silicon Laboratories is the larger company: $228M of revenue in its latest quarter (Q2 2026) against $218M for Rambus (Q3 2026).
Is Silicon Laboratories or Rambus growing faster?
Rambus is growing faster (+22% against +18% a year earlier).
Which is more profitable, Silicon Laboratories or Rambus?
Rambus is more profitable, with an operating margin of 38.3% against -4.7%.
More: Silicon Laboratories earnings · how Silicon Laboratories makes money · Rambus earnings · how Rambus makes money
From the companies' latest 10-Q, 10-K or earnings release (10-Q filed Aug 11, 2026; 10-Q filed Oct 26, 2026). Fiscal quarters can end on different dates. Not investment advice.