SoftBank Completes $6.5 Billion Acquisition of Ampere Computing

• SoftBank has completed its $6.5 billion all-cash acquisition of Ampere Computing, a U.S.-based designer of Arm-based server processors.
• Ampere becomes a wholly owned subsidiary of SoftBank, strengthening its AI and cloud data center chip strategy.
• Ampere’s processors focus on high performance and low power consumption, helping address data center power and sustainability challenges.
• The deal signals more long-term investment in Arm-based server and AI platforms with potential impact on sourcing, design choices, and vendor roadmaps.

SoftBank Group has finalized its $6.5 billion all-cash acquisition of Ampere Computing, bringing the Arm-based server chip specialist fully under its control. With the deal closed, Ampere becomes a wholly owned subsidiary, expanding SoftBank’s influence across the fast-growing AI and cloud infrastructure hardware market.

This acquisition is SoftBank’s most direct move yet toward owning the full silicon stack powering AI data centers, from Arm IP to complete server processors.

Who Is Ampere Computing?

Ampere Computing is a U.S. semiconductor company headquartered in Santa Clara, California. The company designs Arm-based server processors specifically for cloud and AI workloads.

Ampere’s products include:

• Altra and Altra Max – high-core-count Arm server CPUs for cloud-native workloads.
• AmpereOne® – its latest family of processors focused on performance, scalability, and energy efficiency for data centers and AI inference.

Ampere’s architecture is optimized for predictable performance and low power consumption, distinguishing it from traditional x86 solutions, earning traction with major cloud providers seeking better performance-per-watt and more efficient rack density.

Why SoftBank Bought Ampere

SoftBank’s journey in the semiconductor world has long been centered on Arm Holdings, the company whose chip designs power billions of devices from smartphones to servers. But now, SoftBank is moving further up the computing stack. With the acquisition of Ampere Computing, the company is no longer just licensing chip designs; it’s stepping into delivering complete server processor products for the cloud.

By combining Arm IP with Ampere’s CPUs and other AI-focused chip assets, SoftBank is creating a more integrated compute platform, one that could shape the next generation of AI infrastructure. It aligns closely with founder Masayoshi Son’s ambitious vision: to power advanced AI and even “artificial superintelligence” using specialized, energy-efficient silicon. Instead of relying on external vendors for server CPUs, SoftBank now has the ability to chart its own roadmap, tailoring chips specifically for AI and hyperscale data center projects.

What Ampere Brings to AI and Cloud Data Centers

AI training and inference workloads are pushing servers to the edge, demanding more performance while keeping power and cooling under control. Ampere’s processors, built on Arm architecture, are designed precisely for this challenge. They deliver high performance at lower energy usage, efficiently handle cloud-native and AI workloads, and offer predictable performance, critical for hyperscale environments where consistency under heavy load is everything.

For cloud and AI providers, this translates into tangible benefits: lower operating costs, the ability to pack more compute into the same physical space, and a more sustainable infrastructure footprint, a  growing priority as ESG and regulatory pressures mount. By bringing Ampere into its fold, SoftBank gains a direct lever to drive this type of architecture across its data center and AI ecosystem, positioning itself at the forefront of the next wave in cloud computing and AI acceleration.