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Radeon RX 6600 vs NVIDIA GeForce GTX 1660 — Specs & Performance Compared

Verdict: The Radeon RX 6600 is ahead of the NVIDIA GeForce GTX 1660 on all 5 shared benchmarks on file, by 15% to 65%, including 49% in 3DMark Time Spy (8,155 vs 5,483). On llama2:7b, the Radeon RX 6600 generates 50.6 tokens/s (per llama.cpp GitHub) against 41.4 for the NVIDIA GeForce GTX 1660 (per llama.cpp GitHub CUDA Performance Discussion), best community run on file for each.

Side-by-side GPU comparison of the Radeon RX 6600 and the NVIDIA GeForce GTX 1660. Released 2021 (Radeon RX 6600), 2019 (NVIDIA GeForce GTX 1660). MSRP range: $329 · $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 6600NVIDIA GeForce GTX 1660
vram gb 86
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 3DMark, Notebookcheck, UL Benchmarks, CpuTronic, The FPS Review, KitGuru, TopCPU.net, Guru3D, VideoCardz, PassMark, AskGeek.io and Tom's Hardware; 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 6600NVIDIA GeForce GTX 1660
3DMark Fire Strike (higher is better)
Source: 3DMark		 20,362 points12,365 points
3DMark Fire Strike Extreme Graphics Score (higher is better)
Source: Notebookcheck		 10,870 points—
3DMark Fire Strike Graphics Score (higher is better)
Source: Notebookcheck		 23,366 points—
3DMark Port Royal (higher is better)
Source: 3DMark		 3,928 points—
3DMark Speed Way (higher is better)
Source: 3DMark		 1,548 points—
3DMark Steel Nomad (higher is better)
Source: UL Benchmarks, 3DMark, CpuTronic		 1,487 points1,047 points
3DMark Time Spy (higher is better)
Source: The FPS Review, KitGuru, TopCPU.net, Guru3D, CpuTronic, 3DMark, VideoCardz		 8,155 points5,483 points
3DMark Time Spy Graphics (higher is better)
Source: KitGuru		 8,155 points—
3DMark Time Spy Graphics Score (higher is better)
Source: Notebookcheck		 7,979 points—
PassMark G2D Mark (higher is better)
Source: PassMark		 896 pts776 pts
PassMark G3D Mark (higher is better)
Source: PassMark, AskGeek.io		 15,064 pts11,618 pts
Tom's Hardware GPU Hierarchy (lower is better)
Source: Tom's Hardware		 220 rank—

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 6600

All Radeon RX 6600 AI benchmarks →

NVIDIA GeForce GTX 1660

All NVIDIA GeForce GTX 1660 AI benchmarks →

Quick answers

Which is faster, the Radeon RX 6600 or the NVIDIA GeForce GTX 1660?

The Radeon RX 6600 is ahead of the NVIDIA GeForce GTX 1660 on all 5 shared benchmarks on file, by 15% to 65%, including 49% in 3DMark Time Spy (8,155 vs 5,483).

Which is better for running local LLMs?

On llama2:7b, the Radeon RX 6600 generates 50.6 tokens/s (per llama.cpp GitHub) against 41.4 for the NVIDIA GeForce GTX 1660 (per llama.cpp GitHub CUDA Performance Discussion), best community run on file for each.

What did the Radeon RX 6600 and the NVIDIA GeForce GTX 1660 cost at launch?

The Radeon RX 6600 launched at a $329 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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