AMBA vs TXN: Which Is the Better Buy in 2026?

Same yardstick, side by side (as of August 2026). Valuation lined up like this is most meaningful for two names in the same corner of the market, which these are. Figures are approximate; verify before investing.

Reading it: TXN is the cheaper of the two on forward earnings, but cheaper is not the same as better. Pair the valuation with growth (how far the forward P/E sits below the trailing P/E) and risk (beta) before you decide.

The metrics above tell you which is the marginally better business. The bigger risk for most people is not picking the slightly worse stock, it is over-concentrating. AMBA and TXN share themes, so owning both, or adding either to what you already hold, can quietly push a large share of your portfolio into one bet.

This is the part a generic comparison page cannot answer, because it depends on what you own. Connect your brokerage and Walnut shows your real, combined AMBA and TXN exposure, flags overlap with your existing positions, and tells you if adding one would tip you past a concentration you are comfortable with, read-only by default, with your login staying at your broker. Walnut is not an investment adviser.

Ambarella (AMBA) is a fabless semiconductor company that designs low-power system-on-chip (SoC) processors for computer vision and edge AI. Its chips capture, compress, and analyze video directly inside devices rather than sending it to the cloud, which powers applications like automotive driver-assistance and camera systems, security and surveillance cameras, drones, robotics, and industrial machine vision. Founded in 2004 and headquartered in Santa Clara, California, the company went public on Nasdaq in 2012. It began as a supplier of video-compression chips (its silicon was inside early GoPro cameras) and has repositioned around AI inference: management reports roughly 80% of fiscal 2026 revenue came from edge-AI applications, built on an installed base of about 45 million edge-AI SoCs and more than 370 customer AI products in production. Ambarella designs the chips and outsources manufacturing to foundry partners.

Full AMBA guide

Texas Instruments (TI) is one of the largest analog semiconductor companies in the world. The vast majority of TI's revenue comes from analog and embedded processing chips: signal-chain semiconductors (op-amps, ADCs, DACs), power management ICs, and small microcontrollers. These are unglamorous compared to GPUs but are essential to nearly every electronic system: industrial equipment, automotive (a major end market), communications infrastructure, and consumer electronics.

Full TXN guide

Both fit overlapping themes, but they are not interchangeable. The useful comparison is which set of drivers and risks you want exposure to.

• AMBA drivers: Edge AI as the core growth engine; Automotive design-win funnel.
• TXN drivers: US-domestic manufacturing capacity expansion; Automotive and industrial as core growth markets.

A faster-growing, richer-valued name usually swings harder, so it suits a longer horizon and a higher tolerance for volatility; a steadier, more cash-generative business suits a more conservative or income-minded investor. The honest test is which set of risks you could hold through a drawdown: Ambarella is a small-cap chip designer competing against much larger firms with far deeper resources, and its revenue is concentrated in a handful of camera, automotive, and IoT markets that can be lumpy quarter to quarter. For TXN, the massive US fab expansion compresses margins near-term and creates execution risk if demand doesn't materialize as expected.

Growth-minded investors who believe the theme has years to run tend to accept the richer multiple for more upside; value-minded investors lean toward the cheaper forward earnings and steadier profile. Pick AMBA if you believe its drivers more; TXN if you believe its. Many investors hold both, but since they share themes, that is a concentrated bet, not diversification. Decide deliberately and check overlap. For the full detail, see the AMBA and TXN guides.

AMBA. Because Ambarella runs at a GAAP net loss, investors typically value it on price-to-sales and non-GAAP profitability rather than a P/E, which puts more weight on the growth story than on current earnings. Its balance sheet is a relative strength: a healthy net-cash position and consistent free cash flow give it room to keep investing through cycles. The main valuation debate is how quickly edge-AI momentum and the automotive funnel translate into durable GAAP profits.

TXN. TI's premium valuation reflects the quality of the analog business (sticky designs, long product lifecycles, high margins) and the dividend growth track record. The multiple is pressured near-term by the fab capex; longer-term it normalizes as new capacity comes online.

Headline figures (approximate, May 2026): AMBA shows revenue (fy2026, ended jan 2026) ~$390.7 million, up ~37% year over year, edge ai share of revenue ~80% of revenue, growing ~50% year over year, gaap net income (ttm) ~-$76 million (a net loss; no meaningful P/E), non-gaap gross margin (q1 fy2027) ~59.9%, versus ~62% a year earlier; TXN shows revenue (ttm) ~$17 billion (recovering from 2023-2024 trough), operating margin ~38% (compressed by fab capex), net income (ttm) ~$5 billion, eps (ttm) ~$5.50.

AMBA and TXN are related but distinct: same themes, different businesses and risks. Neither wins in the abstract; the right pick is whichever thesis you actually believe, sized so you are not over-concentrated in one theme. Walnut can show your combined AMBA and TXN exposure against your real portfolio. It is not an investment adviser.