Micron’s Memory Boom Is Giving Nvidia’s AI Lead a New Counterweight

The AI infrastructure buildout is producing two different forms of leverage. Nvidia sells the accelerators and networking fabric used to build AI systems; Micron supplies the high-bandwidth memory and DRAM that accompany them. Nvidia’s revenue scale still defines the market, but Micron’s sold-out HBM supply and customer commitments have made memory availability and pricing a central part of the investment comparison.

The platform ramp set the pace

Nvidia reported $81.62 billion in first-quarter fiscal 2027 revenue, up 85% from a year earlier. Its Data Center unit generated $75.25 billion, roughly 92% of sales, after rising 92% year over year and 21% sequentially. Non-GAAP earnings per share reached $1.87, up 140% year over year.

The company said networking revenue nearly tripled during the quarter and guided for $91 billion in second-quarter revenue at a 75% non-GAAP gross margin. CEO Jensen Huang called Blackwell the fastest product ramp in Nvidia’s history and said Microsoft’s Fairwater site was running hundreds of thousands of Blackwell GPUs.

The investment case is not only about hardware shipments. Zacks points to Nvidia’s CUDA software ecosystem and broader AI software portfolio as sources of switching costs that can make it harder for competitors to take share. That software position helps explain why the analysis considers Nvidia’s higher valuation a premium for its ecosystem as well as its growth.

Nvidia’s momentum is not limited to the completed quarter. The company forecast $1 trillion in Blackwell and Rubin revenue from 2025 through calendar 2027. That is a company projection, and China data-center compute was excluded from Nvidia’s guidance.

Memory demand became a supply constraint

Micron’s fiscal third quarter showed how sharply the memory side of the buildout has accelerated. Revenue reached $41.46 billion, up 346% year over year, while non-GAAP earnings per share rose to $25.11 from $1.91. The company also reported a record 84.9% gross margin.

The mechanism is capacity and bandwidth. The Zacks analysis says modern AI models require more of both than conventional computing workloads, lifting demand for high-bandwidth memory, DDR5 DRAM and advanced data-center SSDs. Micron said its HBM supply is sold out for calendar 2026, while a significant portion of its 2027 production is already committed through long-term customer agreements.

The commitments Micron has disclosed

• HBM4 revenue passed $1 billion and was ramping twice as fast as HBM3E, Micron said.
• Micron said 16 Strategic Customer Agreements represented roughly $100 billion in minimum contracted revenue, with price floors above its peak quarterly margins in prior cycles.
• Customer cash deposits associated with those agreements totaled $22 billion, according to Micron.

The next move is a test of the contracts

Micron says DRAM and NAND demand significantly exceeds industry supply and expects tightness beyond calendar 2027. Its disclosed agreements combine minimum revenue commitments, price floors and customer deposits. Whether those terms change the durability of this memory upcycle remains unresolved.

The investment analysis identifies cracks in HBM pricing and reduced hyperscaler capital spending as risks for both companies. Its fiscal 2027 consensus estimates nevertheless project faster revenue and non-GAAP EPS growth for Micron, at 91.4% and 113.7%, than for Nvidia, at 79.6% and 90.6%. Those are estimates, not results.

Zacks ranked Micron a No. 1 Strong Buy and Nvidia a No. 3 Hold, and concluded Micron was the better buy at the time of its comparison. That is an analyst judgment, not an outcome. The more revealing evidence will be whether Micron’s commitments and pricing terms hold if supply conditions change, while Nvidia sustains the platform and software advantages now reflected in its premium.