NVIDIA GeForce GTX 670M vs NVIDIA GeForce GT 640 Rev. 2
What is the difference between NVIDIA GeForce GTX 670M and NVIDIA GeForce GT 640 Rev. 2. Find out which graphics card has better performance.
Graphics Processor (GPU)
| GF114 | GPU Name | GK208 |
| N13E-GS1-LP-A1 | Model number | GK208-400-A1 |
| Fermi 2.0 | Architecture | Kepler 2.0 |
| TSMC | Foundry | TSMC |
| 40 nm | Process Size | 28 nm |
| 1,950 million | Transistors | 1,020 million |
| 332 mm² | Die Size | 87 mm² |
Graphics Card
| Mar 22nd, 2012 | Release Date | May 29th, 2013 |
| GeForce 600M | Family | GeForce 600 |
| End-of-life | Production | End-of-life |
| GeForce 500M | Predecessor | GeForce 500 |
| MXM-B (3.0) | Bus Interface | PCIe 2.0 x8 |
Memory
| 1536 MB | Memory Size | 1024 MB |
| GDDR5 | Memory Type | GDDR5 |
| 192 bit | Memory Bus | 64 bit |
| 72.00 GB/s | Bandwidth | 40.06 GB/s |
Performance
| 8.372 GPixel/s | Pixel fillrate | 8.368 GPixel/s |
| 33.49 GTexel/s | Texture fillrate | 33.47 GTexel/s |
| 803.7 GFLOPS | FP32 (float) performance | 803.3 GFLOPS |
| 66.98 GFLOPS (1:12) | FP64 (double) performance | 33.47 GFLOPS (1:24) |
Clock Speeds
| 750 MHz 3 Gbps effective | Memory Clock | 1252 MHz 5 Gbps effective |
| 598 MHz | GPU Clock | 1046 MHz |
Render Config
| 336 | Shading Units | 384 |
| 56 | TMUs | 32 |
| 24 | ROPs | 8 |
| 64 KB (per SM) | L1 Cache | 16 KB (per SMX) |
| 384 KB | L2 Cache | 512 KB |
Board Design
| MXM Module | Slot Width | Single-slot |
| 75 W | Thermal design power (TDP) | 49 W |
| No outputs | Display Connectors | 1x DVI 1x HDMI 1x VGA |
API support
| 12 (11_0) | DirectX | 12 (11_0) |
| 4.6 | OpenGL | 4.6 |
| 1.1 | OpenCL | 3.0 |
| N/A | Vulkan | 1.1 |
| 5.1 | Shader Model | 5.1 |
| 2.1 | CUDA | 3.5 |