NVIDIA GeForce GTX 660 Ti vs AMD Radeon R9 M395X Mac Edition
What is the difference between NVIDIA GeForce GTX 660 Ti and AMD Radeon R9 M395X Mac Edition. Find out which graphics card has better performance.
Graphics Processor (GPU)
| GK104 | GPU Name | Amethyst |
| GK104-300-KD-A2 | Model number | Amethyst XT |
| Kepler | Architecture | GCN 3.0 |
| TSMC | Foundry | TSMC |
| 28 nm | Process Size | 28 nm |
| 3,540 million | Transistors | 5,000 million |
| 294 mm² | Die Size | 366 mm² |
Graphics Card
| Aug 16th, 2012 | Release Date | May 5th, 2015 |
| GeForce 600 | Family | Crystal System (R9 M300) |
| End-of-life | Production | Active |
| GeForce 500 | Predecessor | Solar System |
| PCIe 3.0 x16 | Bus Interface | MXM-B (3.0) |
Memory
| 2 GB | Memory Size | 4 GB |
| GDDR5 | Memory Type | GDDR5 |
| 192 bit | Memory Bus | 256 bit |
| 144.2 GB/s | Bandwidth | 174.7 GB/s |
Performance
| 27.44 GPixel/s | Pixel fillrate | 29.09 GPixel/s |
| 109.8 GTexel/s | Texture fillrate | 116.4 GTexel/s |
| 2.634 TFLOPS | FP32 (float) performance | 3.723 TFLOPS |
| 109.8 GFLOPS (1:24) | FP64 (double) performance | 232.7 GFLOPS (1:16) |
Clock Speeds
| 1502 MHz 6 Gbps effective | Memory Clock | 1365 MHz 5.5 Gbps effective |
Render Config
| 1344 | Shading Units | 2048 |
| 112 | TMUs | 128 |
| 24 | ROPs | 32 |
| 16 KB (per SMX) | L1 Cache | 16 KB (per CU) |
| 384 KB | L2 Cache | 512 KB |
Board Design
| Dual-slot | Slot Width | MXM Module |
| 150 W | Thermal design power (TDP) | 250 W |
| 2x DVI 1x HDMI 1x DisplayPort | Display Connectors | No outputs |
| 2x 6-pin | Power Connectors | None |
API support
| 12 (11_0) | DirectX | 12 (12_0) |
| 4.6 | OpenGL | 4.6 |
| 3.0 | OpenCL | 2.0 |
| 1.1 | Vulkan | 1.2 |
| 5.1 | Shader Model | 6.3 |