NVIDIA GeForce 945A vs NVIDIA GeForce GT 650M Mac Edition
What is the difference between NVIDIA GeForce 945A and NVIDIA GeForce GT 650M Mac Edition. Find out which graphics card has better performance.
Graphics Processor (GPU)
| GM108 | GPU Name | GK107 |
| Maxwell | Architecture | Kepler |
| TSMC | Foundry | TSMC |
| 28 nm | Process Size | 28 nm |
| unknown | Transistors | 1,270 million |
| unknown | Die Size | 118 mm² |
Graphics Card
| Mar 13th, 2015 | Release Date | Jul 12th, 2012 |
| GeForce 900A | Family | GeForce 600M |
| Active | Production | End-of-life |
| GeForce 800A | Predecessor | GeForce 500M |
| PCIe 3.0 x8 | Bus Interface | PCIe 3.0 x16 |
Memory
| 1024 MB | Memory Size | 512 MB |
| GDDR5 | Memory Type | GDDR5 |
| 64 bit | Memory Bus | 128 bit |
| 40.10 GB/s | Bandwidth | 80.26 GB/s |
Performance
| 9.512 GPixel/s | Pixel fillrate | 7.200 GPixel/s |
| 28.54 GTexel/s | Texture fillrate | 28.80 GTexel/s |
| 913.2 GFLOPS | FP32 (float) performance | 691.2 GFLOPS |
| 28.54 GFLOPS (1:32) | FP64 (double) performance | 28.80 GFLOPS (1:24) |
Clock Speeds
| 1253 MHz 5 Gbps effective | Memory Clock | 1254 MHz 5 Gbps effective |
Render Config
| 384 | Shading Units | 384 |
| 24 | TMUs | 32 |
| 8 | ROPs | 16 |
| 64 KB (per SMM) | L1 Cache | 16 KB (per SMX) |
| 1024 KB | L2 Cache | 256 KB |
Board Design
| 33 W | Thermal design power (TDP) | 45 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 |