Radeon RX 6800 XT vs NVIDIA GeForce GTX 1660 — Specs & Performance Compared
Verdict: The Radeon RX 6800 XT is ahead of the NVIDIA GeForce GTX 1660 on all 4 shared benchmarks on file, by 35% to 265%, including 211% in 3DMark Time Spy (17,185 vs 5,521). On llama3.1:8b, the Radeon RX 6800 XT generates 37.6 tokens/s (per LocalScore (Mozilla Builders)) against 16.7 for the NVIDIA GeForce GTX 1660 (per DatabaseMart), best community run on file for each.
Side-by-side GPU comparison of the Radeon RX 6800 XT and the NVIDIA GeForce GTX 1660. Released 2020 (Radeon RX 6800 XT), 2019 (NVIDIA GeForce GTX 1660). MSRP range: $649 · $219. Specs, synthetic benchmarks, AI inference tok/s, and Amazon availability below; each column header links to that part's benchmark page.
NVIDIA GeForce GTX 1660
*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
| Spec | Radeon RX 6800 XT | NVIDIA GeForce GTX 1660 |
|---|---|---|
| vram gb | 16 | 6 |
| 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, KitGuru, GPU-Monkey, eTeknix, Legit Reviews, HWBOT, UL Benchmarks, CpuTronic, TopCPU.net 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.
| Benchmark | Radeon RX 6800 XT | NVIDIA GeForce GTX 1660 |
|---|---|---|
| 3DMark Fire Strike (higher is better) Source: 3DMark |
— | 12,365 points |
| 3DMark Fire Strike Extreme (higher is better) Source: KitGuru |
24,200 points | — |
| 3DMark Fire Strike Extreme (Graphics score) (higher is better) Source: GPU-Monkey |
25,796 points | — |
| 3DMark Port Royal (higher is better) Source: eTeknix, KitGuru, 3DMark, Legit Reviews, GPU-Monkey |
8,541 points | — |
| 3DMark Speed Way (higher is better) Source: 3DMark |
3,444 points | — |
| 3DMark Speed Way (Graphics score) (higher is better) Source: GPU-Monkey |
3,527 points | — |
| 3DMark Steel Nomad (higher is better) Source: HWBOT, UL Benchmarks, CpuTronic |
3,824 points | 1,047 points |
| 3DMark Steel Nomad (DX12) (higher is better) Source: HWBOT |
3,976 points | — |
| 3DMark Time Spy (higher is better) Source: HWBOT, TopCPU.net, KitGuru, CpuTronic, 3DMark, Notebookcheck, Legit Reviews |
17,185 points | 5,521 points |
| 3DMark Time Spy (Graphics score) (higher is better) Source: GPU-Monkey |
19,194 points | — |
| 3DMark Time Spy Extreme (higher is better) Source: HWBOT, KitGuru, Notebookcheck |
8,500 points | — |
| 3DMark Time Spy Extreme (Graphics score) (higher is better) Source: GPU-Monkey |
9,213 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.
Radeon RX 6800 XT
- qwen3:8b: 711.0 tok/s (LocalLLaMA)
- llama2:7b: 100.5 tok/s (KnightLi llama.cpp GPU Benchmark Scoreboard)
- llama2:7b: 100.5 tok/s (llama.cpp GitHub (Vulkan perf scoreboard))
NVIDIA GeForce GTX 1660
- qwen3:0.6b: 47.1 tok/s (LocalLLaMA)
- llama2:7b: 41.4 tok/s (knightli.com)
- llama2:7b: 41.4 tok/s (llama.cpp GitHub CUDA Performance Discussion)
Quick answers
Which is faster, the Radeon RX 6800 XT or the NVIDIA GeForce GTX 1660?
The Radeon RX 6800 XT is ahead of the NVIDIA GeForce GTX 1660 on all 4 shared benchmarks on file, by 35% to 265%, including 211% in 3DMark Time Spy (17,185 vs 5,521).
Which is better for running local LLMs?
On llama3.1:8b, the Radeon RX 6800 XT generates 37.6 tokens/s (per LocalScore (Mozilla Builders)) against 16.7 for the NVIDIA GeForce GTX 1660 (per DatabaseMart), best community run on file for each.
What did the Radeon RX 6800 XT and the NVIDIA GeForce GTX 1660 cost at launch?
The Radeon RX 6800 XT launched at a $649 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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