AMD Radeon R9 380 vs NVIDIA GeForce GTX 660 Ti
What is the difference between AMD Radeon R9 380 and NVIDIA GeForce GTX 660 Ti. Find out which graphics card has better performance.
Graphics Processor (GPU)
| Antigua | GPU Name | GK104 |
| Antigua PRO (215-0877000) | Model number | GK104-300-KD-A2 |
| GCN 3.0 | Architecture | Kepler |
| TSMC | Foundry | TSMC |
| 28 nm | Process Size | 28 nm |
| 5,000 million | Transistors | 3,540 million |
| 366 mm² | Die Size | 294 mm² |
Graphics Card
| Jun 18th, 2015 | Release Date | Aug 16th, 2012 |
| Pirate Islands (R9 300) | Family | GeForce 600 |
| Active | Production | End-of-life |
| 199 USD | Launch Price | 299 USD |
| Volcanic Islands | Predecessor | GeForce 500 |
| PCIe 3.0 x16 | Bus Interface | PCIe 3.0 x16 |
Memory
| 2 GB | Memory Size | 2 GB |
| GDDR5 | Memory Type | GDDR5 |
| 256 bit | Memory Bus | 192 bit |
| 176.0 GB/s | Bandwidth | 144.2 GB/s |
Performance
| 31.04 GPixel/s | Pixel fillrate | 27.44 GPixel/s |
| 108.6 GTexel/s | Texture fillrate | 109.8 GTexel/s |
| 3.476 TFLOPS | FP32 (float) performance | 2.634 TFLOPS |
| 217.3 GFLOPS (1:16) | FP64 (double) performance | 109.8 GFLOPS (1:24) |
Clock Speeds
| 1375 MHz 5.5 Gbps effective | Memory Clock | 1502 MHz 6 Gbps effective |
Render Config
| 1792 | Shading Units | 1344 |
| 112 | TMUs | 112 |
| 32 | ROPs | 24 |
| 16 KB (per CU) | L1 Cache | 16 KB (per SMX) |
| 512 KB | L2 Cache | 384 KB |
Board Design
| Dual-slot | Slot Width | Dual-slot |
| 221 mm 8.7 inches | Length | 241 mm 9.5 inches |
| 190 W | Thermal design power (TDP) | 150 W |
| 450 W | Suggested PSU | 450 W |
| 2x DVI 1x HDMI 1x DisplayPort | Display Connectors | 2x DVI 1x HDMI 1x DisplayPort |
| 2x 6-pin | Power Connectors | 2x 6-pin |
| C766 | Board Number | P2004 |
API support
| 12 (12_0) | DirectX | 12 (11_0) |
| 4.6 | OpenGL | 4.6 |
| 2.0 | OpenCL | 3.0 |
| 1.2 | Vulkan | 1.1 |
| 6.3 | Shader Model | 5.1 |