Nvidia and Micron both serve AI customers with products crucial for their success.
These stocks have each soared more than 1,000% over the past five years.
Nvidia (NASDAQ: NVDA) and Micron Technology (NASDAQ: MU) each have seen revenue soar amid this artificial intelligence (AI) boom. This is because these companies offer something that is crucial for the development and performance of this hot technology: compute power, and memory and storage.
Nvidia is the compute expert, designing the fastest graphics processing units (GPUs) around, while Micron offers the memory and storage necessary for AI tasks. Investors have recognized these companies' strengths and have rushed to get in on the stocks. As a result, Nvidia and Micron each have climbed more than 1,000% over the past five years.
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Both of these companies are likely to win as this AI story continues to unfold. But if you could only invest in one today, which is the better AI growth buy? Let's find out.
Image source: Getty Images.
Nvidia is the leading designer of GPUs, the chips powering key AI tasks like the training and inference of AI models. Though rivals also offer compute, and in many cases are delivering revenue growth too, Nvidia remains a big step ahead. Companies may invest in a broad range of compute, but those who aim to win in AI generally rely at least partially on Nvidia's GPUs -- their high speed helps customers reach the finish line faster and may result in a lower total cost of ownership over time.
But Nvidia doesn't rely on GPUs alone. The company offers a full portfolio of related products and services, and today it's in the process of entering another enormous market: the central processing unit (CPU) market. These are the chips that generally power all computers, and they are a key tool to fuel AI agents, the next area of AI growth. Nvidia is launching its first-ever stand-alone CPU this fall and is conquering the CPU for PC market with a new superchip. This may set it on track for leadership in this $200 billion market.
Nvidia also has designed products and services specifically for certain markets, from telecom to healthcare and robotics, which offers it a pretty significant revenue growth opportunity moving forward.
Micron, as mentioned, is an expert in memory and storage -- two critical elements for AI customers, particularly as the era of AI agents unfolds. AI agents go through a thought process and carry out steps, in many cases multiple steps, to solve a particular problem. For this, they clearly need compute power but also memory and storage.
Demand for these products has been so high that Micron recently reported records in revenue, gross margin, earnings per share, and free cash flow, and revenue from DRAM and NAND, two types of memory, increased in the triple digits.
"In the AI era, memory has become a strategic asset for our customers," the company said in the latest earnings update.
Micron has noted increased adoption of AI agents in PCs and smartphones, a point that supports ongoing demand for the company's products.
The tech giant expects earnings records in the current quarter, the third fiscal quarter. Micron predicts free cash flow will "roughly double sequentially" in the period. And it forecasts third-quarter revenue of $33.5 billion, a record high for any quarter or year so far.
The biggest headwind for Micron at this point is supply -- due to supply constraints, it's unable to serve 100% of its customers' needs.
Though Nvidia and Micron both have climbed this year, Micron's advance is much steeper than that of Nvidia. It's soared more than 240%, while Nvidia has added 9% as of the June 11 market close.
Micron actually is cheaper than Nvidia: It trades for 16x forward earnings estimates, while Nvidia trades for 22x. But while Nvidia's valuation has fallen this year, Micron's has increased.

NVDA PE Ratio (Forward) data by YCharts
I think Micron is a great stock to own, but the run-up in its price and rising valuation suggest this player could be heading for a pullback at a certain point. Meanwhile, Nvidia, at today's valuation, offers investors a fantastic buying opportunity. And that's why, today, I think Nvidia is the better AI growth buy to add to a tech portfolio.
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Adria Cimino has no position in any of the stocks mentioned. The Motley Fool has positions in and recommends Micron Technology and Nvidia. The Motley Fool has a disclosure policy.