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Nvidia's AI Chip Lead Hinges on TSMC Fall Allocations as Google Scales TPU Sales

September 7, 2026 at 10:32 EDT

Infra & Chips
Sales & Business

TSMC's autumn production allocations will help decide whether Nvidia can hold its lead in AI accelerators as Google sells Tensor Processing Units to large outside customers.

Fall 2026 · TSMC · Nvidia · Google

Who gets the wafers this fall

TSMC's autumn production allocations will help decide whether Nvidia can keep its AI-chip lead as Google ramps Tensor Processing Units for outside customers.

CoWoS packaging · 2026 share

Nvidia's booking vs the rest of the industry

~60%

Nvidia

~40%

Everyone else

Six blocks to four: Nvidia holds the majority of TSMC CoWoS, the packaging step every leading AI accelerator still needs.

Magnitude · demand vs supply

Advanced-node demand has run about 3× capacity

1×

TSMC supply

3×

Customer demand

C. C. Wei said advanced process demand ran about three times what TSMC could produce; CoWoS is sold out through 2026.

$60–64B

TSMC 2026 capex, raised from $52–56B

~25%

Google 2026 TPU forecast cut, ~4M to ~3M

Anthropic TPU access, plus 3.5 GW from 2027

70–75%

Projected Nvidia AI-chip share through 2030

How scarce slots become chips

1. Allocate
TSMC assigns 3nm wafers and CoWoS slots

→

2. Package
Dies plus HBM stacks go through CoWoS

→

3. Ship
Rubin GPUs and Ironwood TPUs reach buyers

Nvidia position

Largest CoWoS lock and CUDA default

Majority share of 2026 CoWoS bookings
Vera Rubin already shipping to major clouds
Software stack still the switching cost

Google challenge

TPUs now sold outside, packaging still tight

Ironwood generally available; Anthropic is the anchor buyer
2026 TPU plan cut after CoWoS shortfalls
Intel EMIB-T path aims to bypass TSMC packaging

The fall test

How TSMC splits wafers this autumn will set 2027 Rubin and Ironwood volumes — not who wins the market outright.

TSMC does not expect supply to meet demand until 2027. 2nm is booked through 2028. HBM is sold out. Extra Google demand still competes with Nvidia on the same packaging lines.

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