NVIDIA GeForce GTX 1660 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 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 RX 6600M is ~10% faster than the GTX 1660 on average at 1080p.
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 | RX 6600M | Difference |
|---|---|---|---|
| 1080p | 30 | 33 | +10% |
| 1440p | 20 | 22 | +10% |
| 4K | 8 | 9 | +13% |
Which one for your resolution?
RX 6600M is the best pick at all three resolutions, averaging 11% more FPS.
Specifications
Side-by-side specs of the GTX 1660 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 | RX 6600M |
|---|---|---|
| Brand | NVIDIA | AMD |
| VRAM | 6 GB | 8 GB |
| TDP | 120W | 100W |
| Tier | Mid-range | Mid-range |
| Score 1080p | 29 | 32 |
| Score 1440p | 22 | 24 |
| Score 4K | 11 | 13 |
| Price (MSRP) | $219 | — |
| Architecture | Turing | RDNA 2 |
| Process Node | TSMC 12nm | TSMC 7nm |
| Shading Units (CUDA/Stream) | 1408 | 1792 |
| RT Cores | — | 28 |
| Texture Units (TMUs) | 88 | 112 |
| ROPs | 48 | 64 |
| Base Clock | 1530 MHz | 1580 MHz |
| Boost Clock | 1785 MHz | 2177 MHz |
| FP32 Performance (Teraflops) | 5.03 TFLOPS | 7.8 TFLOPS |
| Memory Type | GDDR5 | GDDR6 |
| Memory Clock | 8000 MHz | 14000 MHz |
| Memory Bus | 192-bit | 128-bit |
| Memory Bandwidth | 192 GB/s | 224 GB/s |
| PCIe Version | PCIe 3.0 | PCIe 4.0 |
| Transistor Count | 6.6B | 11.1B |
| Release Date | 2019-03-14 | 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
- TDP
- 120W
- FPS/W
- 0.25
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 RX 6600M 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 | RX 6600M | Winner |
|---|---|---|---|
 | 34 | 37 | RX 6600M |
 | 31 | 34 | RX 6600M |
 | 25 | 27 | RX 6600M |
 | 26 | 29 | RX 6600M |
 | 27 | 30 | RX 6600M |
| 26 | 29 | RX 6600M | |
 | 32 | 36 | RX 6600M |
 | 34 | 37 | RX 6600M |
 | 38 | 41 | RX 6600M |
 | 30 | 33 | RX 6600M |
Verdict
AMD Radeon RX 6600M 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 RX 6600M comes out ahead by around 10% 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 GTX 1660 with the RX 6600M.
Which is better, the GTX 1660 or the RX 6600M?
On average at 1080p, the RX 6600M is 10% faster than the GTX 1660. 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 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 10% at 1080p. At higher resolutions (1440p and 4K) the relative difference usually stays similar.
1660 vs 6600M: what's the real difference?
In performance, the RX 6600M beats the GTX 1660 by around 10% 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 and the 6600M on price, the price and $/FPS section above can help you decide.
