GTX 780 Ti vs GTX 660
Head-to-head specifications
| Metric | GTX 780 Ti | GTX 660 | Difference |
|---|---|---|---|
| 3DMark Time Spy | 1,872 | 693 | +170.1% |
| Avg FPS @ 1080p | 32 | 24 | +33.3% |
| Avg FPS @ 1440p | 18 | 13 | +38.5% |
| Avg FPS @ 4K | 9 | 6 | +50.0% |
| FP32 compute (TFLOPS) | 5.4 | 2.0 | +170.2% |
| VRAM | 3 GB GDDR5 | 2 GB GDDR5 | — |
| Memory bandwidth (GB/s) | 336 | 168 | +100.0% |
| TDP (W) | 250 | 140 | — |
| Launch MSRP (USD) | $699 | $229 | +205.2% |
- GTX 780 Ti averages 18 fps at 1440p versus 13 fps — about 38% faster.
- GTX 660 draws less power (140W vs 250W).
Verdict: GTX 780 Ti or GTX 660?
GTX 780 Ti advantages
- 1440p gaming (+28%)
- 4K gaming (+33%)
- Synthetic benchmark performance (+63%)
- Video memory (+33%)
- Memory bandwidth (+50%)
GTX 660 advantages
- Power efficiency (+44%)
- Affordability (+67%)
Which should you choose?
- Choose the GTX 780 Ti if you game at 1440p.
- Choose the GTX 660 if you want lower power draw, heat and noise.
- Choose the GTX 780 Ti if you game at 4K or drive a high-resolution display.
Value for money
GTX 660 delivers more performance per dollar, making it the better value of the two at their listed prices.
GTX 780 Ti vs GTX 660: 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.
GTX 660 — NVIDIA desktop graphics card (2012, Kepler) with 2 GB of GDDR5, averaging 13 fps at 1440p; launched at $229.
GTX 780 Ti vs GTX 660: GTX 780 Ti is faster for gaming. GTX 780 Ti averages 18 fps at 1440p versus 13 fps — about 38% faster. GTX 660 draws less power (140W vs 250W).
1080p, 1440p and 4K
At 1440p — the most common enthusiast resolution — the GTX 780 Ti averages 18 fps against 13. At 4K (9 vs 6 fps) VRAM (3GB vs 2GB) and memory bandwidth matter more.
Power and value
Board power is 250 W versus 140 W, which affects PSU headroom, case cooling and noise. At launch MSRPs of $699 vs $229, 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 GTX 660?
GTX 780 Ti takes the overall edge, though GTX 660 wins in specific areas worth weighing. GTX 780 Ti averages 18 fps at 1440p versus 13 fps — about 38% faster.
What is the main difference between the GTX 780 Ti and the GTX 660?
GTX 780 Ti averages 18 fps at 1440p versus 13 fps — about 38% faster. GTX 660 draws less power (140W vs 250W).
Which is better value?
GTX 660 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 game at 1440p. Choose the GTX 660 if you want lower power draw, heat and noise.
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.