Broadcom vs Marvell: One of These AI Chip Stocks Is a Clear Winner

Broadcom vs Marvell: One of These AI Chip Stocks Is a Clear Winner Alex Sirois Mon, September 7, 2026 at 10:38 PM GMT+9 4 min read AVGO +0.21% MRVL +7.05% GOOG -1.11% Quick Read Broadcom's AI revenue surged 221% to $16.7B while Marvell's new Google warrant for 7% of its shares signals a deeper, multi-year custom silicon partnership.

Broadcom's VMware unit contributes $8.8B at 94% gross margins, representing a durable software moat that makes it the lower-risk, higher-quality AI compounder.

Marvell's 163% year-to-date gain already prices in momentum, but its October Investor Day could reset long-term revenue targets and lift its ceiling further.

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Broadcom (NASDAQ: AVGO) and Marvell Technology (NASDAQ: MRVL) just delivered back-to-back AI chip earnings that told very different stories. Broadcom posted $29.59 billion in fiscal Q3 revenue on September 2, 2026, powered by custom XPUs. Marvell reported $2.739 billion on August 27, 2026, with a Google warrant reshaping its story. Both lean on hyperscalers, yet the scale gap is enormous.

Broadcom's AI semiconductor line hit $16.70 billion, up 221% year-over-year, with CEO Hock Tan telling investors "Q3 demand was simply hot and we're just getting started." XPUs made up 73% of AI revenue, with Google's Ironwood TPU v7 shipping in volume and OpenAI's Jalapeno accelerator ramping. Q4 AI guidance of $21.70 billion implies 236% growth. That is a staggering setup.

Marvell's Data Center segment reached $2.17 billion, up 46% year-over-year and now 79% of total revenue. Matt Murphy said "AI-related bookings remain exceptionally robust." An expanded Google agreement, tied to a warrant for up to 7% of Marvell's shares, cements a multi-year custom silicon relationship spanning inference accelerators, storage controllers, and memory interfaces.

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Broadcom's VMware business added $8.8 billion at a 94% gross margin, a moat Marvell simply does not have. Yet Marvell owns leadership in 800G and 1.6T optical interconnects, and its scale-up optics opportunity keeps expanding.

I will be watching Marvell's October 6, 2026 Investor Day, where management is expected to quantify custom revenue through fiscal 2029 and reset the $10 billion-plus long-term target. For Broadcom, the December quarter report and any update on the $230 billion fiscal 2028 AI framework will matter more. Supply of substrates, HBM, and data-center shells could throttle either name.

If you want the durable compounder, I lean Broadcom. Its 15th consecutive dividend raise, elite cash generation, and locked-in TPU pipeline with Google, Meta, OpenAI, and Anthropic suggest a lower-risk AI exposure profile. But Marvell's 163.44% year-to-date move already reflects real momentum, and the Google warrant changes the ceiling. Marvell offers sharper upside variance for those tracking it. Conviction on either would weaken if hyperscaler capex signals crack. Right now, neither picture does.

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