GTX 780 Ti vs RX 6600 XT
Head-to-head specifications
| Metric | GTX 780 Ti | RX 6600 XT | Difference |
|---|---|---|---|
| 3DMark Time Spy | 1,872 | 4,452 | -58.0% |
| Avg FPS @ 1080p | 32 | 49 | -34.7% |
| Avg FPS @ 1440p | 18 | 29 | -37.9% |
| Avg FPS @ 4K | 9 | 16 | -43.8% |
| FP32 compute (TFLOPS) | 5.4 | 10.6 | -49.5% |
| VRAM | 3 GB GDDR5 | 8 GB GDDR6 | — |
| Memory bandwidth (GB/s) | 336 | 224 | +50.0% |
| TDP (W) | 250 | 160 | — |
| Launch MSRP (USD) | $699 | $379 | +84.4% |
- RX 6600 XT averages 29 fps at 1440p versus 18 fps — about 38% faster.
- RX 6600 XT draws less power (160W vs 250W).
Verdict: GTX 780 Ti or RX 6600 XT?
GTX 780 Ti advantages
- Memory bandwidth (+33%)
RX 6600 XT advantages
- 1440p gaming (+38%)
- 4K gaming (+44%)
- Synthetic benchmark performance (+58%)
- Video memory (+63%)
- Power efficiency (+36%)
- Affordability (+46%)
Which should you choose?
- Choose the GTX 780 Ti if you work with high-resolution textures or memory-bound workloads.
- Choose the RX 6600 XT if you game at 1440p.
Value for money
RX 6600 XT delivers more performance per dollar, making it the better value of the two at their listed prices.
GTX 780 Ti vs RX 6600 XT: which should you choose?
GTX 780 Ti — NVIDIA desktop graphics card (2013, Kepler) with 3 GB of GDDR5, averaging 18 fps at 1440p; launched at $699.
RX 6600 XT — AMD desktop graphics card (2021, RDNA 2) with 8 GB of GDDR6, averaging 29 fps at 1440p; launched at $379.
GTX 780 Ti vs RX 6600 XT: RX 6600 XT is faster for gaming. RX 6600 XT averages 29 fps at 1440p versus 18 fps — about 38% faster. RX 6600 XT draws less power (160W vs 250W).
1080p, 1440p and 4K
At 1440p — the most common enthusiast resolution — the RX 6600 XT averages 29 fps against 18. At 4K (9 vs 16 fps) VRAM (3GB vs 8GB) and memory bandwidth matter more.
Power and value
Board power is 250 W versus 160 W, which affects PSU headroom, case cooling and noise. At launch MSRPs of $699 vs $379, weigh the frame-rate lead against price and power draw for your target resolution.
The verdict
Both are credible choices in the graphics card comparison space; the specification table above lays out every metric so you can weigh the trade-offs that matter to you. Pick the one whose strengths line up with how you will actually use it.
Frequently asked questions
Is the GTX 780 Ti better than the RX 6600 XT?
RX 6600 XT is the clearly stronger overall choice, winning most of the dimensions that matter. RX 6600 XT averages 29 fps at 1440p versus 18 fps — about 38% faster.
What is the main difference between the GTX 780 Ti and the RX 6600 XT?
RX 6600 XT averages 29 fps at 1440p versus 18 fps — about 38% faster. RX 6600 XT draws less power (160W vs 250W).
Which is better value?
RX 6600 XT delivers more performance per dollar, making it the better value of the two at their listed prices.
Which should I choose?
Choose the GTX 780 Ti if you work with high-resolution textures or memory-bound workloads. Choose the RX 6600 XT if you game at 1440p.
Methodology
Graphics cards are compared on 3DMark Time Spy scores, average gaming frame rates at 1080p/1440p/4K, FP32 compute throughput, VRAM capacity and type, memory bandwidth, board power (TDP) and launch MSRP — plus AI workload throughput (Stable Diffusion iterations/s and local LLM tokens/s) where measured. Vintage and server GPUs without modern benchmark results are compared on specifications only, clearly labelled. Frame rates are averages across a game suite at high settings; specific titles vary.