Nvidia RTX Spark N1X (18-Core)

Cores: 18
L3 cache: 16MB (shared)
TDP: 45 W (max. boost up to 80 W)
Transistor size: 3 nm

RTX Spark N1X (18-Core) - laptop processor produced by Apple for socket Custom that has 18 cores and 18 threads. The base clock frequency of the CPU is 1700 MHz, but due to Turbo Boost technology, it can perform up to 4100 MHz. The size of the L3 cache is 16 MB. Please note that this chip has integrated graphics Nvidia N1X (40SM).

Review

Single-Core Performance

82

Multi-Core Performance

68

Power Efficiency

96

Integrated Graphics

99

NanoReview Final Score

80

Compare Nvidia RTX Spark N1X (18-Core) with other CPUs

Cinebench

Reputable cross-platform benchmark for high-performance processors

Cinebench 2024 (Single)

128

Cinebench 2024 (Multi)

1620

Submit your benchmark results

GeekBench v6

The new version of this benchmark emulates common operations often used in real-world apps

Geekbench 6 (Single-Core)

3083

Geekbench 6 (Multi-Core)

19106

Performance Per Watt

Shows the score you get per each watt of PL1 TDP

Cinebench 2024 / Watt	36 PPW
Geekbench 6 Multi / Watt	424.6 PPW

These are rough calculations, as most CPUs surpass PL1 TDP wattage even in multicore workloads.

General

Vendor	Apple
Released	September 3, 2026
Type	Laptop
Instruction Set	ARMv9
Codename	Blackwell
Model number	AHJ11488B
Integrated GPU	Nvidia N1X (40SM)
Apple Equivalent	- Apple M5 Max (32-сore GPU)

CPU

Performance Cores
P-Cores	9
P-Threads	9
Base Frequency (P)	1.7 GHz
Turbo Boost Frequency (P)	4.1 GHz

Efficient Cores
E-Cores	9
E-Threads	9
Base Frequency (E)	1.5 GHz
Turbo Boost Frequency (E)	2.8 GHz

Total
Total Cores	18
Total Threads	18
Bus Frequency	100 MHz
Multiplier	41x
L1 Cache	128K (per core)
L2 Cache	2MB (per core)
L3 Cache	16MB (shared)
Unlocked Multiplier	No

Package

Fabrication Process	3 nm
TDP (PL1)	45 W
Max. Boost TDP (PL2)	80 W
Socket	Custom
Die Size	207.85 mm²

Laptop processors ranking - 23rd place

iGPU

Integrated Graphics	Nvidia N1X (40SM)
GPU Base Clock	1665 MHz
GPU Boost Clock	2535 MHz
Shading Units	5120
TMUs	160
ROPs	40
Execution Units	40

iGPU FLOPS

26 TFLOPS

See also: Nvidia N1X (40SM) – integrated graphics of Nvidia RTX Spark N1X (18-Core)

Memory Support

Memory Types	- LPDDR5X-9400
Max. Memory Size	128 GB
Max. Memory Bandwidth	300 GB/s
ECC Support	No

Misc

PCI Express Version

5.0

Competitors

1. Nvidia RTX Spark N1X (18-Core) vs Nvidia RTX Spark N1X (20-Core)

2. Nvidia RTX Spark N1X (18-Core) vs Apple M5 Max (32-сore GPU)

3. Nvidia RTX Spark N1X (18-Core) vs Qualcomm Snapdragon X2 Elite (X2E-90-100)

4. Nvidia RTX Spark N1X (18-Core) vs Qualcomm Snapdragon X2 Elite Extreme (X2E-94-100)

5. Nvidia RTX Spark N1X (18-Core) vs Apple M4 Max (16-Core)

6. Nvidia RTX Spark N1X (18-Core) vs Apple M4 Pro (14-Core)

7. Nvidia RTX Spark N1X (18-Core) vs Intel Core Ultra 7 366H

Compare other CPUs (460+)