Sam Altman: home PC RAM is 'quite terrible'

OpenAI boss Sam Altman said it is "quite terrible" for home computers to hold the world's scarce DRAM. DRAM is the working memory of every computer.

He said it on Stripe's Cheeky Pint podcast, posted on YouTube on the 29th of October 2026.

Tom's Hardware reported the remark on the 30th of October. Posts about it on X drew millions of views that night.

Altman's words: DRAM in a home computer is used 5% of the time

Altman was talking about local inference, which means running AI models on your own computer. Many people think this ends the need for data centers, he told host John Collison.

"From a global allocation perspective, actually, it's quite terrible," Altman said, per the podcast's own transcript. He said people keep "the world's limited supply of DRAM sitting in their own computer" and use it "5% of the time."

"You want maximum utilization in the cloud," he added. The 5% figure is his own estimate, and he gave no measurement behind it.

Below we break down what 5% of the time means in hours

A computer whose memory works 5% of the time uses it for about 72 minutes a day, by our arithmetic. A data center server can use the same memory around the clock.

Busy all day, the same memory would work 20 times as many hours, by our arithmetic. Altman gave no figure for how busy data center memory is.

DRAM contract prices rise 10 to 15% in the fourth quarter, TrendForce says

Market research firm TrendForce said on the 30th of September 2026 that DRAM contract prices would rise 10 to 15% from the third quarter. AI servers keep memory short, it said.

Altman told Collison the "invisible hand is failing right now" in memory. He said memory makers build few new plants because they remember past booms and busts.

Key facts

Said by Sam Altman on the Cheeky Pint podcast, posted the 29th of October 2026.

Home DRAM used "5% of the time", by his own estimate.

About 72 minutes a day, by our arithmetic.

DRAM contract prices up 10 to 15% in the fourth quarter, per TrendForce.