Intel Starfire brings 18A process to space with radiation-hardened chip for US government

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Intel has unveiled Starfire, a space-grade system-on-chip built for the US government that combines eight CPU cores and NPU on its 18A process with an Intel 3 GPU. The radiation-hardened chip operates between -55°C and 125°C, delivering up to 75 TOPS for AI workloads in orbit with samples expected in Q3 2026.

Intel Starfire Merges Advanced Silicon with Space Survivability

Intel has revealed Starfire, a space-grade SoC designed for the US government chip programs that pushes the company's most advanced silicon into one of the harshest operating environments imaginable. The Panther Lake SoC combines eight CPU cores and a three-tile NPU built on the 18A process with a four-core Intel 3 GPU, all integrated through a multi-chip Foveros package

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. This marks a significant departure from the decades-old processors currently powering spacecraft, bringing AI capabilities to orbit through an extreme environment processor rated to operate between -55°C and 125°C

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Source: Tom's Hardware

Source: Tom's Hardware

The architecture splits across two fabrication nodes, with the Intel 18A CPU cores and NPU handling compute tasks while the Intel 3 GPU manages graphics workloads. Intel Foundry manufactures both variants domestically, positioning Starfire as the only US-based leading-edge logic solution with Trusted Foundry status[1](https://www.tomsh ardware.com/tech-industry/semiconductors/intel-shows-off-starfire-space-grade-chip). The company promises market-competitive pricing alongside a 10-plus year lifetime rating, addressing both performance and longevity requirements for space missions

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Two Configurations Target Different Mission Profiles

Intel offers Starfire in Low Power and Performance configurations, both featuring four P-cores and four LPE cores paired with 64 execution units across the GPU. The Low Power variant draws 10W while running P-cores at 1.0 GHz, efficiency cores at 850 MHz, and the GPU between 800 MHz and 1.0 GHz, delivering 45 TOPS

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. The Performance version pushes power consumption to 35W, clocking P-cores to 3.1 GHz, efficiency cores to 2.1 GHz, and the GPU to 2.0 GHz while reaching 75 TOPS

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Both SKUs carry 12 PCIe Gen4 lanes and support LPDDR5 or DDR5 memory, providing modern connectivity options absent from legacy space processors

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. The radiation-hardened chip incorporates protection against total ionizing dose, single-event latch-up, and single-event effects, though Intel notes radiation characterization remains in process and specifications may change

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Targeting On-Orbit AI Inference Beyond Legacy Systems

The space processor market has relied on BAE Systems RAD750 for two decades, a radiation-hardened PowerPC chip clocking 110 to 200 MHz with 10.4 million transistors built on 150nm or 250nm lithography that flies on Mars rovers, Kepler, and Fermi among more than 150 spacecraft

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. Starfire's up to 75 TOPS and dedicated NPU position it for on-orbit AI inference rather than traditional telemetry and control, representing a leap beyond BAE's multi-core RAD5545 and NASA's developing processor targeting 100 times current throughput

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Committing the 18A process to orbit presents technical challenges, as smaller transistors hold less charge per stored bit, making leading-edge silicon more vulnerable to radiation-induced bit flips. Intel relies on RibbonFET and design-level hardening rather than a mature, inherently more tolerant node—the same approach used for Clearwater Forest, the 288-core Xeon stacking 18A compute tiles on Intel 3 base tiles

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Pentagon Programs and Manufacturing Timeline

Intel Government Technologies handles Starfire development, with samples scheduled for Q3 2026 and ties to Pentagon programs including RAMP-C and SHIP

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. The timeline aligns with Intel's broader 18A roadmap, though yields aren't expected to reach industry-standard levels until 2027

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. Domestic manufacturing through Intel Foundry addresses supply chain security concerns while demonstrating the company's ability to deliver leading-edge logic for critical government applications

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