NVIDIA N1X (18C40SM) 80W Full Specs

Summary

18 Cores(9P+9E) 18 Threads(9P+9E) 3GHz

Bandwidth 300GB/s LPDDR5X

iGPU RTX Spark N1X 40SM 80W

Peak·FP32·FP16 827.4 TFLOPSNVFP4 Tensor Sparse

Highlights

Max Bandwidth

Max Bandwidth iGPU Peak iGPU FP32 iGPU FP16

N1X (18C40SM) 80W300GB/s

x1

Top Score614.4GB/s

x2.05

DesktopM5 Max (18C40G)

Core Config

18 Cores 9P 9E

18 Threads 9P 9E

Clocks

Base Clock 3GHz

Boost Clock 3.9GHz

Cache

L1i 64KB P

L1d 64KB P

L2 2MB P 512KB E

Memory

Type LPDDR5X

Max Memory 64GB

ECC -

Channels 16

Bus Width 256-bit

Speed 9375MT/s

Bandwidth 300GB/s

Bandwidth Calculator Channels Transfer Rate9375MT/s UC·Spec·OC 300GB/s

Power & Thermals

cTDP-down 45W

cTDP-up 80W

Expansion

PCIe PCIe 5.0

iGPU

iGPU RTX Spark N1X 40SM 80W

Shaders 5120

Boost Clock 2.52GHz

Peak·FP32·FP16 827.4 TFLOPSNVFP4 Tensor Sparse

Chip

Manufacturer NVIDIA

ISA AArch64

Architecture ARMv9.2-A

Family RTX Spark

Branding

Codename Grace Blackwell GB10Die Grace Blackwell GB10Variant Cortex-X925P-Core Cortex-A725E-Core

Market Segment Laptop

Release Date Oct 16, 2026

Official specs

Fabrication

Foundry TSMC

Fabrication Node N3E

Images