NVIDIA GeForce GTX 680MX Mac Edition vs AMD Radeon R9 M390X
What is the difference between NVIDIA GeForce GTX 680MX Mac Edition and AMD Radeon R9 M390X. Find out which graphics card has better performance.
Graphics Processor (GPU)
| GK104 | GPU Name | Amethyst |
| N13E-GTX2-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
| Oct 23rd, 2012 | Release Date | May 5th, 2015 |
| GeForce 600M | Family | Crystal System (R9 M300) |
| End-of-life | Production | Active |
| GeForce 500M | Predecessor | Solar System |
| PCIe 3.0 x16 | Bus Interface | PCIe 3.0 x16 |
Memory
| 2 GB | Memory Size | 4 GB |
| GDDR5 | Memory Type | GDDR5 |
| 256 bit | Memory Bus | 256 bit |
| 160.0 GB/s | Bandwidth | 160.0 GB/s |
Performance
| 23.01 GPixel/s | Pixel fillrate | 23.14 GPixel/s |
| 92.03 GTexel/s | Texture fillrate | 92.54 GTexel/s |
| 2.209 TFLOPS | FP32 (float) performance | 2.961 TFLOPS |
| 92.03 GFLOPS (1:24) | FP64 (double) performance | 185.1 GFLOPS (1:16) |
Clock Speeds
| 1250 MHz 5 Gbps effective | Memory Clock | 1250 MHz 5 Gbps effective |
| 719 MHz | GPU Clock | 723 MHz |
Render Config
| 1536 | Shading Units | 2048 |
| 128 | TMUs | 128 |
| 32 | ROPs | 32 |
| 16 KB (per SMX) | L1 Cache | 16 KB (per CU) |
| 512 KB | L2 Cache | 512 KB |
Board Design
| 122 W | Thermal design power (TDP) | 75 W |
| No outputs | Display Connectors | No outputs |
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 |