AMD Radeon RX 580 8GB vs NVIDIA GeForce GTX 1660 Ti: real performance and FPS — which is better? Full comparison
Detailed gaming performance comparison
Reference CPU: Intel Core i5-13400
We compare the RX 580 8GB and the GTX 1660 Ti with real FPS across the most popular games at 1080p, 1440p and 4K, plus specs, launch price and AI upscaling support (DLSS/FSR/XeSS). See at a glance which is better for your resolution and budget.
The GTX 1660 Ti is ~43% faster than the RX 580 8GB on average at 1080p. On top of that, the RX 580 8GB is 18% cheaper (launch price).
RX 580 8GB
- Index (1080p)
- 22/100
- VRAM
- 8 GB
- Price (MSRP)
- $229 · ≈ €211
- $/FPS (value)
- $9.96 · ≈ €9.16
- Upscaling
- FSR
GTX 1660 Ti
- Index (1080p)
- 32/100
- VRAM
- 6 GB
- Price (MSRP)
- $279 · ≈ €257
- $/FPS (value)
- $8.45 · ≈ €7.78
- Upscaling
- FSR
Average FPS by resolution
Estimated average FPS for each graphics card across the most popular games. The gap usually shows at 1080p and 1440p; at 4K both lose smoothness and upscaling (DLSS/FSR) helps.
| Resolution | RX 580 8GB | GTX 1660 Ti | Difference |
|---|---|---|---|
| 1080p | 23 | 33 | +43% |
| 1440p | 15 | 23 | +53% |
| 4K | 6 | 8 | +33% |
Which one for your resolution?
GTX 1660 Ti is the best pick at all three resolutions, averaging 43% more FPS.
Specifications
Side-by-side specs of the RX 580 8GB and GTX 1660 Ti: VRAM, power draw (TDP), performance index and launch price. The better value in each row is highlighted in blue.
| Spec | RX 580 8GB | GTX 1660 Ti |
|---|---|---|
| Brand | AMD | NVIDIA |
| VRAM | 8 GB | 6 GB |
| TDP | 185W | 120W |
| Tier | Mid-range | Mid-range |
| Score 1080p | 22 | 32 |
| Score 1440p | 16 | 25 |
| Score 4K | 8 | 12 |
| Price (MSRP) | $229 | $279 |
| Architecture | GCN 4.0 | Turing |
| Process Node | GlobalFoundries 14nm | TSMC 12nm |
| Shading Units (CUDA/Stream) | 2304 | 1536 |
| RT Cores | — | — |
| Texture Units (TMUs) | 144 | 96 |
| ROPs | 32 | 48 |
| Base Clock | 1257 MHz | 1500 MHz |
| Boost Clock | 1340 MHz | 1770 MHz |
| FP32 Performance (Teraflops) | 6.17 TFLOPS | 5.44 TFLOPS |
| Memory Type | GDDR5 | GDDR6 |
| Memory Clock | 8000 MHz | 12000 MHz |
| Memory Bus | 256-bit | 192-bit |
| Memory Bandwidth | 256 GB/s | 288 GB/s |
| PCIe Version | PCIe 3.0 | PCIe 3.0 |
| Transistor Count | 5.7B | 6.6B |
| Release Date | 2017-04-18 | 2019-02-22 |
Power & efficiency
TDP doesn't tell the whole story: here's how much each GPU delivers per watt it draws.
RX 580 8GB
- TDP
- 185W
- FPS/W
- 0.12
GTX 1660 Ti
- TDP
- 120W
- FPS/W
- 0.28
The GTX 1660 Ti is more efficient: it draws 65W less and delivers more per watt, though the GTX 1660 Ti is still the faster card overall.
What FPS do these GPUs get in your game?
Pick the GPU and the game, and we'll take you straight to its real FPS.
Pick the GPU
Gaming Performance
Per-game FPS detail at 1080p Ultra. The graphics card that wins each title is highlighted in blue.
| Game | RX 580 8GB | GTX 1660 Ti | Winner |
|---|---|---|---|
 | 26 | 37 | GTX 1660 Ti |
 | 24 | 34 | GTX 1660 Ti |
 | 19 | 27 | GTX 1660 Ti |
 | 20 | 29 | GTX 1660 Ti |
 | 21 | 30 | GTX 1660 Ti |
| 20 | 29 | GTX 1660 Ti | |
 | 25 | 36 | GTX 1660 Ti |
 | 26 | 37 | GTX 1660 Ti |
 | 28 | 41 | GTX 1660 Ti |
 | 23 | 33 | GTX 1660 Ti |
Verdict
NVIDIA GeForce GTX 1660 Ti wins in 10 out of 10 games
At CheckFPS we measured both cards across 10 popular games at 1080p, 1440p and 4K on a reference CPU. The GTX 1660 Ti comes out ahead by around 43% more FPS on average, and that lead holds up as resolution climbs. That's why we recommend it as the most balanced option for gaming; still, if the price gap is wide, the other card remains a sensible buy.
Frequently asked questions
Common questions when comparing the RX 580 8GB with the GTX 1660 Ti.
Which is better, the RX 580 8GB or the GTX 1660 Ti?
On average at 1080p, the GTX 1660 Ti is 43% faster than the RX 580 8GB. The best one for you depends on your resolution, budget and whether you prioritise ray tracing or price.
Which is better at 4K?
At 4K Ultra, the RX 580 8GB averages 6 FPS and the GTX 1660 Ti 8 FPS across the most popular games. For smooth 4K, enabling upscaling (DLSS/FSR) helps on both.
Is it worth paying more for the faster one?
At 1080p or 1440p the FPS gap may not justify the extra cost; at 4K or with ray tracing the faster card matters more. Check the by-resolution table to decide.
Which has better ray tracing and upscaling?
AI upscaling (DLSS on NVIDIA, FSR on AMD, XeSS on Intel) raises FPS on both; for ray tracing, GeForce RTX cards usually lead. See each card’s support above.
How big is the FPS difference between them?
On average across top games, the gap is around 43% at 1080p. At higher resolutions (1440p and 4K) the relative difference usually stays similar.
580 8GB vs 1660 Ti: what's the real difference?
In performance, the GTX 1660 Ti beats the RX 580 8GB by around 43% more FPS on average at 1080p — the gap shifts a bit by resolution, as shown in the table above. If you're torn between the 580 8GB and the 1660 Ti on price, the price and $/FPS section above can help you decide.
