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Radeon RX 6900 XT vs NVIDIA GeForce GTX 1660 — Specs & Performance Compared

Verdict: The Radeon RX 6900 XT is ahead of the NVIDIA GeForce GTX 1660 on all 4 shared benchmarks on file, by 37% to 288%, including 220% in 3DMark Time Spy (17,564 vs 5,483). On llama3.1:8b, the Radeon RX 6900 XT generates 42.4 tokens/s (per LocalScore.ai) against 16.7 for the NVIDIA GeForce GTX 1660 (per DatabaseMart Blog), best community run on file for each.

Side-by-side GPU comparison of the Radeon RX 6900 XT and the NVIDIA GeForce GTX 1660. Released 2020 (Radeon RX 6900 XT), 2019 (NVIDIA GeForce GTX 1660). MSRP range: $999 · $219. 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.

Specs side-by-side

SpecRadeon RX 6900 XTNVIDIA GeForce GTX 1660
vram gb 166
vram type —GDDR5
tdp w —120
cuda cores —1408

Synthetic benchmarks

Each row says whether a higher or a lower number is better (ranks and times are lower-is-better). Scores come from Tom's Hardware, 3DMark, Notebookcheck, HWBOT, UL Benchmarks, CpuTronic, NanoReview, TopCPU.net, Legit Reviews, PassMark and AskGeek.io; 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.

BenchmarkRadeon RX 6900 XTNVIDIA GeForce GTX 1660
3DMark Fire Strike (higher is better)
Source: Tom's Hardware, 3DMark, Notebookcheck		 40,894 pts12,365 points
3DMark Fire Strike Ultra (higher is better)
Source: Notebookcheck, 3DMark		 15,204 points—
3DMark Port Royal (higher is better)
Source: HWBOT, Notebookcheck, 3DMark		 11,583 points—
3DMark Speed Way (higher is better)
Source: HWBOT, 3DMark		 4,389 points—
3DMark Steel Nomad (higher is better)
Source: UL Benchmarks, CpuTronic		 4,060 points1,047 points
3DMark Steel Nomad Light (higher is better)
Source: NanoReview		 20,093 points—
3DMark Time Spy (higher is better)
Source: Tom's Hardware, TopCPU.net, Legit Reviews, Notebookcheck, CpuTronic, 3DMark		 17,564 pts5,483 points
3DMark Time Spy Graphics Score (higher is better)
Source: Legit Reviews		 18,486 points—
PassMark G2D Mark (higher is better)
Source: PassMark		 1,062 pts776 pts
PassMark G3D Mark (higher is better)
Source: PassMark, AskGeek.io		 26,671 pts11,618 pts

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.

Radeon RX 6900 XT

All Radeon RX 6900 XT AI benchmarks →

NVIDIA GeForce GTX 1660

All NVIDIA GeForce GTX 1660 AI benchmarks →

Quick answers

Which is faster, the Radeon RX 6900 XT or the NVIDIA GeForce GTX 1660?

The Radeon RX 6900 XT is ahead of the NVIDIA GeForce GTX 1660 on all 4 shared benchmarks on file, by 37% to 288%, including 220% in 3DMark Time Spy (17,564 vs 5,483).

Which is better for running local LLMs?

On llama3.1:8b, the Radeon RX 6900 XT generates 42.4 tokens/s (per LocalScore.ai) against 16.7 for the NVIDIA GeForce GTX 1660 (per DatabaseMart Blog), best community run on file for each.

What did the Radeon RX 6900 XT and the NVIDIA GeForce GTX 1660 cost at launch?

The Radeon RX 6900 XT launched at a $999 MSRP and the NVIDIA GeForce GTX 1660 at $219. Street prices drift from launch pricing; the Where to buy section links current listings.

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