AMD Radeon HD 7950 vs NVIDIA GeForce GTX 680MX Mac Edition
What is the difference between AMD Radeon HD 7950 and NVIDIA GeForce GTX 680MX Mac Edition. Find out which graphics card has better performance.
Graphics Processor (GPU)
| Tahiti | GPU Name | GK104 |
| Tahiti PRO (215-0821056) | Model number | N13E-GTX2-A2 |
| GCN 1.0 | Architecture | Kepler |
| TSMC | Foundry | TSMC |
| 28 nm | Process Size | 28 nm |
| 4,313 million | Transistors | 3,540 million |
| 352 mm² | Die Size | 294 mm² |
Graphics Card
| Jan 31st, 2012 | Release Date | Oct 23rd, 2012 |
| Southern Islands (HD 7900) | Family | GeForce 600M |
| End-of-life | Production | End-of-life |
| Northern Islands | Predecessor | GeForce 500M |
| PCIe 3.0 x16 | Bus Interface | PCIe 3.0 x16 |
Memory
| 3 GB | Memory Size | 2 GB |
| GDDR5 | Memory Type | GDDR5 |
| 384 bit | Memory Bus | 256 bit |
| 240.0 GB/s | Bandwidth | 160.0 GB/s |
Performance
| 25.60 GPixel/s | Pixel fillrate | 23.01 GPixel/s |
| 89.60 GTexel/s | Texture fillrate | 92.03 GTexel/s |
| 2.867 TFLOPS | FP32 (float) performance | 2.209 TFLOPS |
| 716.8 GFLOPS (1:4) | FP64 (double) performance | 92.03 GFLOPS (1:24) |
Clock Speeds
| 1250 MHz 5 Gbps effective | Memory Clock | 1250 MHz 5 Gbps effective |
| 800 MHz | GPU Clock | 719 MHz |
Render Config
| 1792 | Shading Units | 1536 |
| 112 | TMUs | 128 |
| 32 | ROPs | 32 |
| 16 KB (per CU) | L1 Cache | 16 KB (per SMX) |
| 768 KB | L2 Cache | 512 KB |
Board Design
| 200 W | Thermal design power (TDP) | 122 W |
| 1x DVI 1x HDMI 2x mini-DisplayPort | Display Connectors | No outputs |
API support
| 12 (11_1) | DirectX | 12 (11_0) |
| 4.6 | OpenGL | 4.6 |
| 1.2 | OpenCL | 3.0 |
| 1.2 | Vulkan | 1.1 |
| 5.1 | Shader Model | 5.1 |