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Radeon RX 6600 vs NVIDIA RTX A4000 16GB — Specs & Performance Compared

Verdict: The NVIDIA RTX A4000 16GB is ahead of the Radeon RX 6600 on all 4 shared benchmarks on file, by 29% to 88%, including 36% in 3DMark Time Spy (11,079 vs 8,155). On qwen3:8b, the Radeon RX 6600 generates 711.0 tokens/s (per LocalLLaMA) against 67.0 for the NVIDIA RTX A4000 16GB (per Trooper.AI GPU benchmarks), best community run on file for each.

Side-by-side GPU comparison of the Radeon RX 6600 and the NVIDIA RTX A4000 16GB. Both released in 2021. MSRP range: $329 · $1,000. 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 RTX A4000 16GB
vram gb 816
tdp w —140
cuda cores —6144

Synthetic benchmarks

Each row says whether a higher or a lower number is better (ranks and times are lower-is-better). Scores come from HWBOT, Notebookcheck, CpuTronic, The FPS Review, TopCPU.net, KitGuru, Guru3D, VideoCardz, GPU-Monkey and PassMark; 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 RTX A4000 16GB
3DMark Fire Strike (higher is better)
Source: HWBOT		 20,362 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: HWBOT		 3,928 points7,380 points
3DMark Speed Way (higher is better)
Source: HWBOT		 1,548 points—
3DMark Steel Nomad (higher is better)
Source: HWBOT, CpuTronic		 1,487 points2,613 points
3DMark Time Spy (higher is better)
Source: The FPS Review, TopCPU.net, KitGuru, HWBOT, Guru3D, CpuTronic, VideoCardz		 8,155 points11,079 points
3DMark Time Spy (graphics) (higher is better)
Source: GPU-Monkey		 —10,968 points
3DMark Time Spy Extreme (graphics) (higher is better)
Source: GPU-Monkey		 —5,299 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 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 6600

All Radeon RX 6600 AI benchmarks →

NVIDIA RTX A4000 16GB

All NVIDIA RTX A4000 16GB AI benchmarks →

Quick answers

Which is faster, the Radeon RX 6600 or the NVIDIA RTX A4000 16GB?

The NVIDIA RTX A4000 16GB is ahead of the Radeon RX 6600 on all 4 shared benchmarks on file, by 29% to 88%, including 36% in 3DMark Time Spy (11,079 vs 8,155).

Which is better for running local LLMs?

On qwen3:8b, the Radeon RX 6600 generates 711.0 tokens/s (per LocalLLaMA) against 67.0 for the NVIDIA RTX A4000 16GB (per Trooper.AI GPU benchmarks), best community run on file for each.

What did the Radeon RX 6600 and the NVIDIA RTX A4000 16GB cost at launch?

The Radeon RX 6600 launched at a $329 MSRP and the NVIDIA RTX A4000 16GB at $1,000. Street prices drift from launch pricing; the Where to buy section links current listings.

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