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H20s to China + 15% with Chris Miller and Lennart Heim

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H20s to China + 15% with Chris Miller and Lennart Heim

The a16z Show

2025/08/14
The a16z Show

The a16z Show

2025/08/14
OverviewShownoteHighlightsTranscriptChaptersPins

Shownote

We’re sharing an episode from ChinaTalk that dives into one of the biggest recent reversals in U.S. tech policy. The U.S. banned Nvidia’s H20 AI chips to China in April. Now, just months later, they’re being sold—with a 15% export fee. What happened? Why ...

Highlights

The U.S. government's shifting stance on exporting advanced AI chips to China has sparked intense debate over national security, economic interests, and technological competition. What began as a strict ban on NVIDIA's H20 AI chip exports has quickly evolved into a more nuanced policy involving fees and conditional sales. This episode brings together experts to dissect the reasoning behind the reversal, the implications for U.S.-China tech rivalry, and the broader strategic significance of semiconductor supply chains.
00:00
Jensen Huang from NVIDIA has a new, super-advanced chip called Blackwell.
15:10
H20 AI chips have high memory bandwidth, making them valuable for AI deployment despite limitations in training capability
17:26
H20e chips using HBM3e may offer superior performance, intensifying debate over sales to China.
35:48
National security should not be traded for money through export fees
40:25
Chinese security agencies raised concerns about digital spying and control risks with H20 chips.
48:55
Selling chips as cloud services could bypass supply restrictions
57:30
Jensen's unique deal with the president on semiconductor exports
1:05:30
A small chip downgrade is considered insignificant for meaningful export control.

Chapters

Why did the U.S. reverse its ban on selling NVIDIA's H20 AI chips to China?
00:00
How does Taiwan's role in chip exports shape the U.S.-China AI rivalry?
12:18
Are H20 chips game-changers for China’s AI ambitions?
17:26
Can U.S. firms balance profit motives with national security concerns?
30:14
What challenges does China face in securing high-bandwidth memory?
40:25
How are Chinese tech giants adapting to chip supply restrictions?
48:55
What role do semiconductor tools play in U.S.-China trade negotiations?
57:30
Do new Nvidia chips cross the line of acceptable export control?
1:02:54

Transcript

Jordan Schneider: Emergency podcast, we're bringing back Lennart Heim of Rand and Chris Miller. You guys know who Chris Miller is. To talk the new H20 drama. We went from banning it in April to now selling it with a 15% export fee. All right, Leonard, why ...