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NVIDIA RTX Spark N1X (18-core)
NVIDIA's RTX Spark N1X in its lower laptop configuration pairs an 18-core Arm Grace CPU (9 performance and 9 efficiency cores) with a 5,120-core Blackwell RTX GPU and unified LPDDR5X memory. NVIDIA sells it under the same N1X name as the 20-core version, with a 45-80W TDP, and laptops with it launched on 16 October 2026.
Pros
- 18 Arm cores: 9 performance (Cortex-X925, up to 3.9GHz) and 9 efficiency (Cortex-A725)
- Integrated Blackwell RTX GPU with 5,120 cores, 4th-generation ray tracing cores, 5th-generation Tensor cores and DLSS 5 support
- Same 45-80W laptop power range as the 20-core N1X, with unified LPDDR5X on a 256-bit bus shared by the CPU and GPU
- In review testing, a laptop with this 18-core configuration landed about 8 to 11 percent behind a 20-core N1X laptop in most multi-threaded CPU tests
Cons
- Laptop-only: NVIDIA lists its desktop version only with the 20-core CPU and 6,144-core GPU
- NVIDIA's spec sheet lists up to 32GB of unified memory for this version, against up to 128GB for the 20-core version
- Runs Windows 11 on Arm, so x86 apps depend on emulation and can run slower than native Arm apps
- NVIDIA's public spec sheet does not list clock speeds or cache sizes; the 3.9GHz peak clock comes from review coverage
Awaiting benchmarks
No Inno Score yet: single-core and multi-core still need a published benchmark result. The sub-scores below come from the spec sheet.
Full specifications
Everything we track for the NVIDIA RTX Spark N1X (18-core)
General
- Announced
- 2026
- Process
- 3 nm
- Base TDP
- 45 W
- Max TDP
- 80 W
Cores & Clocks
- Cores
- 18
- Performance cores
- 9
- Efficiency cores
- 9
- Threads
- 18
- Boost clock
- 3.9 GHz
Integrated GPU
- iGPU
- NVIDIA Blackwell RTX 5120-core GPU
- iGPU clock
- 2,535 MHz
Memory
- Memory support
- LPDDR5X
Devices with the NVIDIA RTX Spark N1X (18-core)
3 devices in our catalog use this chip
Quick answers
Is the NVIDIA RTX Spark N1X (18-core) good in 2026?
We haven't scored the NVIDIA RTX Spark N1X (18-core) yet: there are no published single-core and multi-core benchmark results for it in our database, and we don't score chips on their spec sheet alone. NVIDIA's RTX Spark N1X in its lower laptop configuration pairs an 18-core Arm Grace CPU (9 performance and 9 efficiency cores) with a 5,120-core Blackwell RTX GPU and unified LPDDR5X memory. NVIDIA sells it under the same N1X name as the 20-core version, with a 45-80W TDP, and laptops with it launched on 16 October 2026.
Which devices use the NVIDIA RTX Spark N1X (18-core)?
3 devices in our catalog use the NVIDIA RTX Spark N1X (18-core): HP OmniBook Ultra 16 (RTX Spark), Dell XPS 16 Creator Edition, HP OmniBook X 14 (RTX Spark).
What are the key specs of the NVIDIA RTX Spark N1X (18-core)?
Cores: 18 · Threads: 18 · Boost clock: 3.9 GHz · Base TDP: 45 W
What are the closest alternatives to the NVIDIA RTX Spark N1X (18-core)?
Its closest rivals on InnoReviews are Apple M5 Max (18-core), Apple M5 Pro (18-core), Qualcomm Snapdragon X2 Elite X2E-94-100 — open the comparison pages for a spec-by-spec breakdown.
