NVIDIA GeForce 940MX vs NVIDIA GeForce GT 640M Mac Edition
What is the difference between NVIDIA GeForce 940MX and NVIDIA GeForce GT 640M Mac Edition. Find out which graphics card has better performance.
Graphics Processor (GPU)
| GM107 | GPU Name | GK107 |
| N16S-GT1R | Model number | N13P-GS |
| Maxwell | Architecture | Kepler |
| TSMC | Foundry | TSMC |
| 28 nm | Process Size | 28 nm |
| 1,870 million | Transistors | 1,270 million |
| 148 mm² | Die Size | 118 mm² |
Graphics Card
| Jun 28th, 2016 | Release Date | Feb 3rd, 2013 |
| GeForce 900M | Family | GeForce 600M |
| Active | Production | End-of-life |
| GeForce 800M | Predecessor | GeForce 500M |
| PCIe 3.0 x8 | Bus Interface | PCIe 3.0 x16 |
Memory
| 2 GB | Memory Size | 512 MB |
| GDDR5 | Memory Type | GDDR5 |
| 64 bit | Memory Bus | 64 bit |
| 40.10 GB/s | Bandwidth | 40.00 GB/s |
Performance
| 6.888 GPixel/s | Pixel fillrate | 5.960 GPixel/s |
| 27.55 GTexel/s | Texture fillrate | 23.84 GTexel/s |
| 881.7 GFLOPS | FP32 (float) performance | 572.2 GFLOPS |
| 27.55 GFLOPS (1:32) | FP64 (double) performance | 23.84 GFLOPS (1:24) |
Clock Speeds
| 1253 MHz 5 Gbps effective | Memory Clock | 1250 MHz 5 Gbps effective |
Render Config
| 512 | Shading Units | 384 |
| 32 | TMUs | 32 |
| 8 | ROPs | 8 |
| 64 KB (per SMM) | L1 Cache | 16 KB (per SMX) |
| 1024 KB | L2 Cache | 128 KB |
Board Design
| 23 W | Thermal design power (TDP) | 32 W |
| No outputs | Display Connectors | No outputs |
API support
| 12 (11_0) | DirectX | 12 (11_0) |
| 4.6 | OpenGL | 4.6 |
| 3.0 | OpenCL | 3.0 |
| 1.1 | Vulkan | 1.1 |
| 5.1 | Shader Model | 5.1 |
| 5.0 | CUDA | 3.0 |