AMD vs ANET: How Advanced Micro Devices and Arista Networks Compare (2026)
Last updated August 2026
Short answer
AMD and ANET are similarly sized, but AMD trades noticeably cheaper on forward earnings (34.45x vs 40.37x): the market is paying up for ANET's profile and pricing AMD more conservatively, or for faster growth. Which you prefer comes down to the drivers you believe, and whether adding either over-concentrates what you already own.
AMD vs ANET: the tie-breaker metrics
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.
| Metric | AMD | ANET | What it tells you |
|---|---|---|---|
| Forward P/E | 34.45 | 40.37 | Valuation on next year's expected earnings, the same yardstick for both. Lower is cheaper for that growth; higher means the market is paying up. |
| Trailing P/E | 158.72 | 62.19 | Valuation on the last 12 months. A big drop from trailing to forward means the market expects earnings to jump, so more growth is already in the price. |
| Beta | 2.47 | 1.60 | Volatility vs the market. Above 1 swings harder than the index; below 1 is steadier. Higher beta means bigger drawdowns to hold through. |
| Price vs 52-week range | 75% of range | 87% of range | Where today's price sits between the 52-week low and high. Near the high is momentum with less margin of safety; near the low is out of favor or a discount, depending on why. |
| Price / book | 12.04 | 16.84 | How much you pay over book value. Very high can signal an asset-light, high-return business or a rich price. |
Reading it: AMD 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.
Before you buy: how AMD and ANET affect your concentration
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 ANET 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 ANET 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.
What does Advanced Micro Devices (AMD) do?
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, MI400) is AMD's AI accelerator platform and the primary direct competitor to NVIDIA's data center GPUs.
What does Arista Networks (ANET) do?
Arista Networks designs and sells high-performance Ethernet switches and networking software for cloud, enterprise, and AI data centers. The company is the leading independent vendor of cloud-scale data center networking, with Microsoft Azure and Meta Platforms among its largest customers. Arista's switches use merchant silicon (primarily Broadcom's Tomahawk and Jericho ASICs) combined with the company's own EOS (Extensible Operating System) software, giving customers programmability and flexibility that Cisco's traditional integrated approach didn't offer.
AMD vs ANET: how do they differ?
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 ramp; EPYC server share gains.
- ANET drivers: AI back-end networking; Campus and enterprise expansion.
Which fits which kind of investor
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 ANET, customer concentration (Microsoft and Meta).
AMD or ANET: which should you pick?
AMD vs ANET: the full fundamentals
AMD. AMD trades at a premium P/E reflecting the AI accelerator growth story and EPYC share gains. The valuation depends on continued execution against NVIDIA in AI; multiple compresses quickly if Instinct share gains stall.
ANET. Arista trades at a substantial premium reflecting the AI networking story and the company's history of consistent execution. The valuation is sensitive to customer concentration; a major customer pause in AI capex would compress the multiple significantly.
Headline figures (approximate, early 2026): AMD shows revenue (ttm) ~$30 billion, operating margin ~25% (improving as data center mix grows), net income (ttm) ~$4 billion (GAAP; higher non-GAAP), eps (ttm) ~$2.50; ANET shows revenue (ttm) ~$7 billion, operating margin ~42%, net income (ttm) ~$2.7 billion, eps (ttm) ~$2.15.
The bottom line: AMD vs ANET
AMD and ANET 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 ANET exposure against your real portfolio. It is not an investment adviser.
Wondering how AMD or ANET fits the portfolio you already own? Walnut is an AI investing app that connects your brokerage read-only and answers questions like that about your actual holdings: overlap, concentration, and how each position tracks the S&P 500. Compare the best AI portfolio analyzers or see the best AI investing apps in 2026.
Investing in Advanced Micro Devices with AI
Connect the broker you already use and ask Walnut's AI how AMD fits what you actually hold: whether you own it already through a fund, what it would do to your concentration, and how it has tracked the S&P 500. Read-only by default, and you approve anything before it reaches your broker.
FAQ
What is the difference between AMD and ANET?
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Advanced Micro Devices (AMD) designs CPUs, GPUs, and adaptive computing chips. Arista Networks designs and sells high-performance Ethernet switches and networking software for cloud, enterprise, and AI data centers. They show up together because they share investment themes, but they are different businesses, so the better fit depends on which thesis you are expressing.
Is AMD or ANET the better stock?
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Neither is universally better; they suit different views and risk levels. Walnut is informational, not investment advice. Compare what each does, the tie-breaker metrics above, and the risks, then decide which fits your thesis and what you already own.
Which is cheaper, AMD or ANET?
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On forward P/E (as of August 2026), AMD trades at 34.45x and ANET at 40.37x, so AMD is the cheaper of the two on next year's expected earnings. A lower multiple is not automatically the better buy: a richer valuation can be justified by faster growth, and a lower one can reflect real risk. Weigh the multiple against how fast each business is compounding.
Should you own both AMD and ANET?
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Because they share themes, owning both concentrates you in that theme. That can be intentional (a focused bet) or accidental (less diversification than it looks). Walnut can show your combined exposure across both, and whether adding either over-concentrates you, before you buy.
What are the risks of AMD vs ANET?
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AMD: 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. Intel's eventual recovery in server CPUs is a multi-year risk. ANET: Customer concentration (Microsoft and Meta). NVIDIA's push to displace Ethernet with InfiniBand for AI workloads, and to integrate networking into its complete-system offerings, is competitive pressure on the merchant-silicon Ethernet ecosystem.
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Walnut is informational, not investment advice. This page is descriptive and not a recommendation to buy or sell AMD or ANET; figures are approximate and dated (as of August 2026). Verify current data before investing.