NVIDIA GeForce GTX 1660 Ti vs AMD Radeon RX 6600M: real performance and FPS — which is better? Full comparison
Detailed gaming performance comparison
Reference CPU: Intel Core i5-13400
We compare the GTX 1660 Ti and the RX 6600M 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 and the RX 6600M perform almost identically; price and features make the difference.
GTX 1660 Ti
- Index (1080p)
- 32/100
- VRAM
- 6 GB
- Price (MSRP)
- $279 · ≈ €257
- 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 | GTX 1660 Ti | RX 6600M | Difference |
|---|---|---|---|
| 1080p | 33 | 33 | = |
| 1440p | 23 | 22 | +5% |
| 4K | 8 | 9 | +13% |
Which one for your resolution?
Tie
GTX 1660 Ti (+5%)
RX 6600M (+13%)
Specifications
Side-by-side specs of the GTX 1660 Ti and RX 6600M: VRAM, power draw (TDP), performance index and launch price. The better value in each row is highlighted in blue.
| Spec | GTX 1660 Ti | RX 6600M |
|---|---|---|
| Brand | NVIDIA | AMD |
| VRAM | 6 GB | 8 GB |
| TDP | 120W | 100W |
| Tier | Mid-range | Mid-range |
| Score 1080p | 32 | 32 |
| Score 1440p | 25 | 24 |
| Score 4K | 12 | 13 |
| Price (MSRP) | $279 | — |
| Architecture | Turing | RDNA 2 |
| Process Node | TSMC 12nm | TSMC 7nm |
| Shading Units (CUDA/Stream) | 1536 | 1792 |
| RT Cores | — | 28 |
| Texture Units (TMUs) | 96 | 112 |
| ROPs | 48 | 64 |
| Base Clock | 1500 MHz | 1580 MHz |
| Boost Clock | 1770 MHz | 2177 MHz |
| FP32 Performance (Teraflops) | 5.44 TFLOPS | 7.8 TFLOPS |
| Memory Type | GDDR6 | GDDR6 |
| Memory Clock | 12000 MHz | 14000 MHz |
| Memory Bus | 192-bit | 128-bit |
| Memory Bandwidth | 288 GB/s | 224 GB/s |
| PCIe Version | PCIe 3.0 | PCIe 4.0 |
| Transistor Count | 6.6B | 11.1B |
| Release Date | 2019-02-22 | 2021-08-04 |
Power & efficiency
TDP doesn't tell the whole story: here's how much each GPU delivers per watt it draws.
GTX 1660 Ti
- TDP
- 120W
- FPS/W
- 0.28
RX 6600M
- TDP
- 100W
- FPS/W
- 0.33
The RX 6600M is more efficient: it draws 20W 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 | GTX 1660 Ti | RX 6600M | Winner |
|---|---|---|---|
 | 37 | 37 | Tie |
 | 34 | 34 | Tie |
 | 27 | 27 | Tie |
 | 29 | 29 | Tie |
 | 30 | 30 | Tie |
| 29 | 29 | Tie | |
 | 36 | 36 | Tie |
 | 37 | 37 | Tie |
 | 41 | 41 | Tie |
 | 33 | 33 | Tie |
Verdict
It's a tie: both GPUs win in 0 out of 10 games
At CheckFPS we measured both cards across 10 popular games at 1080p, 1440p and 4K on a reference CPU. Performance is practically tied at every resolution, so the decision comes down to price and current availability.
Frequently asked questions
Common questions when comparing the GTX 1660 Ti with the RX 6600M.
Which is better, the GTX 1660 Ti or the RX 6600M?
On average at 1080p, the GTX 1660 Ti is 0% faster than the RX 6600M. 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 GTX 1660 Ti averages 8 FPS and the RX 6600M 9 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 0% at 1080p. At higher resolutions (1440p and 4K) the relative difference usually stays similar.
1660 Ti vs 6600M: what's the real difference?
In performance, the GTX 1660 Ti beats the RX 6600M by around 0% 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 1660 Ti and the 6600M on price, the price and $/FPS section above can help you decide.
