AMD vs LOGI: Which Is the Better Buy in 2026?

Same yardstick, side by side (as of October 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: LOGI 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. AMD and LOGI 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 AMD and LOGI 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.

Advanced Micro Devices (AMD) designs CPUs, GPUs, and adaptive computing chips. The company has two main client-facing CPU lines: Ryzen for consumer PCs and EPYC for data center servers. EPYC has gained significant share against Intel Xeon in cloud and enterprise data centers over the past five years. The Instinct GPU line (MI300X, MI325X, MI350, and the MI400 family including the MI450 and MI455X) is AMD's AI accelerator platform and the primary direct competitor to NVIDIA's data center GPUs, now sold as full Helios rack-scale systems as well as individual chips.

Full AMD guide

Logitech International (LOGI) designs and sells computer and mobile peripherals: mice, keyboards, webcams, headsets, video-conferencing hardware, tablet accessories, and a large gaming portfolio under the Logitech G and Astro brands, plus streaming gear through Blue and Streamlabs. It reports across categories including gaming, keyboards and combos, pointing devices, video collaboration, webcams, tablet accessories, and headsets. The company is Swiss-headquartered but reports in US dollars, runs a March fiscal year end, carries almost no debt, and returns cash through an annual dividend and buybacks. It sells worldwide through retail and online channels and increasingly targets the enterprise video-collaboration market as a higher-value adjacency to its consumer roots.

Full LOGI guide

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

• AMD drivers: Instinct AI GPU and Helios rack ramp; EPYC server share gains.
• LOGI drivers: Diversified peripherals leadership; Gaming and video collaboration.

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: NVIDIA's structural advantages in AI (CUDA ecosystem, manufacturing capacity allocations from TSMC, customer relationships) make AI GPU share gains harder than the hardware comparison alone suggests. For LOGI, logitech sells discretionary consumer electronics, so results are cyclical and sensitive to PC demand, consumer spending, and channel inventory swings.

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 AMD if you believe its drivers more; LOGI 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 AMD and LOGI guides.

AMD. AMD's trailing P/E of about 139x looks extreme because GAAP earnings still carry Xilinx amortization and have not caught up with the AI order book; on forward estimates the multiple is about 34x. The gap between the two is the thesis in numbers: the price assumes revenue roughly doubles to about $89 billion in 2027 on MI450 and Helios shipments, so any slip in that ramp would show up quickly in a stock that already moves 3% on a sector rotation day.

LOGI. At about $105 on October 16, 2026, Logitech trades at ~19x trailing and ~17x forward earnings and ~14x EV/EBITDA, in line with a mature, profitable hardware franchise rather than a growth premium. Near-net-cash balance sheet, ~$723 million of trailing free cash flow and a ~27% payout ratio give the story a quality and cash-return tilt. Consensus sees fiscal 2027 revenue roughly flat, so a demand, supply (chip shortage) or tariff disappointment is the main derating risk, while another beat like the June quarter's would argue the other way.

Headline figures (approximate, October 2026): AMD shows revenue (ttm) ~$41 billion (June 2026 quarter up ~50% YoY), gross / operating margin ~56% / ~17% (GAAP, trailing), net income (ttm) ~$6.5 billion (GAAP; higher non-GAAP), eps (ttm) ~$3.92 GAAP; LOGI shows revenue (ttm) ~$4.9 billion, revenue growth (june 2026 quarter, yoy) ~7%, gross / operating margin ~45% / ~21%, net income (ttm) ~$801 million.

AMD and LOGI 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 AMD and LOGI exposure against your real portfolio. It is not an investment adviser.