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NVIDIA RTX Spark (N1X) 18-Core vs NVIDIA RTX Spark (N1X) 20-Core — Specs & Performance Compared

Verdict: The NVIDIA RTX Spark (N1X) 20-Core is ahead of the NVIDIA RTX Spark (N1X) 18-Core on all 4 shared benchmarks on file, by 3% to 8%, including 6% in Cinebench 2026 single (547 vs 518). On llama3.1:8b, the NVIDIA RTX Spark (N1X) 20-Core generates 56.4 tokens/s (per StorageReview) against 55.1 for the NVIDIA RTX Spark (N1X) 18-Core (per StorageReview), best community run on file for each.

Side-by-side APU comparison of the NVIDIA RTX Spark (N1X) 18-Core and the NVIDIA RTX Spark (N1X) 20-Core. Both released in 2026. Specs, synthetic benchmarks, AI inference tok/s, and Amazon availability below; each column header links to that part's benchmark page.

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*Price sourced from Amazon.com. Price and availability subject to change.

Where to buy

A listing for each part; the current price and stock are on the retailer's page.

Synthetic benchmarks

Each row says whether a higher or a lower number is better (ranks and times are lower-is-better). Scores come from Wccftech, StorageReview and Notebookcheck; each row links its sources, and where they differ the cell shows their median. Empty cells mean we don't yet have that benchmark on file for the SKU.

BenchmarkNVIDIA RTX Spark (N1X) 18-CoreNVIDIA RTX Spark (N1X) 20-Core
3DMark Fire Strike (higher is better)
Source: Wccftech		 —21,199 points
3DMark Night Raid (higher is better)
Source: Wccftech		 —56,326 points
3DMark Port Royal (higher is better)
Source: Wccftech		 —8,601 points
3DMark Solar Bay (higher is better)
Source: Wccftech		 —50,087 points
3DMark Speed Way (higher is better)
Source: Wccftech		 —2,898 points
3DMark Steel Nomad (higher is better)
Source: Wccftech		 —2,999 points
3DMark Time Spy (higher is better)
Source: Wccftech		 —11,992 points
3DMark Time Spy Graphics (higher is better)
Source: Wccftech		 —11,790 points
7-Zip all threads (total) (higher is better)
Source: StorageReview		 138 GIPS—
Cinebench 2024 multi (higher is better)
Source: Notebookcheck		 —1,704 points
Cinebench 2024 single (higher is better)
Source: Notebookcheck		 —131 points
Cinebench 2026 multi (higher is better)
Source: Notebookcheck, StorageReview		 6,394 points6,612 points

AI inference (tokens/sec)

Top community-reported tokens-per-second results for popular LLMs whose weights fit the card's memory, each linked to its source. See the per-SKU benchmark page for the full set including quantization and prompt length.

NVIDIA RTX Spark (N1X) 18-Core

All NVIDIA RTX Spark (N1X) 18-Core AI benchmarks →

NVIDIA RTX Spark (N1X) 20-Core

All NVIDIA RTX Spark (N1X) 20-Core AI benchmarks →

Quick answers

Which is faster, the NVIDIA RTX Spark (N1X) 18-Core or the NVIDIA RTX Spark (N1X) 20-Core?

The NVIDIA RTX Spark (N1X) 20-Core is ahead of the NVIDIA RTX Spark (N1X) 18-Core on all 4 shared benchmarks on file, by 3% to 8%, including 6% in Cinebench 2026 single (547 vs 518).

Which is better for running local LLMs?

On llama3.1:8b, the NVIDIA RTX Spark (N1X) 20-Core generates 56.4 tokens/s (per StorageReview) against 55.1 for the NVIDIA RTX Spark (N1X) 18-Core (per StorageReview), best community run on file for each.

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