Product Compare
NVIDIA GeForce GTX 780M Mac Edition vs NVIDIA GeForce GTX 660 Ti
| GPU | GPU | |
|---|---|---|
| Graphics Card | ||
| Release Date | Nov 2013 | Aug 2012 |
| Generation | GeForce 700M | GeForce 600 |
| Type | Mobile | Desktop |
| Bus Interface | MXM-B (3.0) | PCIe 3.0 x16 |
| Clock Speeds | ||
| Base Clock | 771 MHz | 915 MHz |
| Boost Clock | 797 MHz | 980 MHz |
| Memory Clock | 1250 MHz | 1502 MHz |
| Memory | ||
| Memory Size | 4GB | 2GB |
| Memory Type | GDDR5 | GDDR5 |
| Memory Bus | 256bit | 192bit |
| Bandwidth | 160.0GB/s | 144.2GB/s |
| Render Config | ||
| Shading Units | 1536 | 1344 |
| TMUs | 128 | 112 |
| ROPs | 32 | 24 |
| L1 Cache | 16 KB (per SMX) | 16 KB (per SMX) |
| L2 Cache | 512 KB | 384 KB |
| Theoretical Performance | ||
| Pixel Rate | 25.50 GPixel/s | 27.44 GPixel/s |
| Texture Rate | 102.0 GTexel/s | 109.8 GTexel/s |
| FP32 (float) | 2.448 TFLOPS | 2.634 TFLOPS |
| FP64 (double) | 102.0 GFLOPS | 109.8 GFLOPS |
| Graphics Processor | ||
| GPU Name | GK104 | GK104 |
| GPU Variant | N14E-GTX-A2 | GK104-300-KD-A2 |
| Architecture | Kepler | Kepler |
| Foundry | TSMC | TSMC |
| Process Size | 28 nm | 28 nm |
| Transistors | 3.54 billion | 3.54 billion |
| Die Size | 294 mm² | 294 mm² |
| Board Design | ||
| TDP | 122W | 150W |
| Outputs | No outputs | 2x DVI1x HDMI 1.4a1x DisplayPort 1.2 |
| Suggested PSU | 450 W | |
| Power Connectors | 2x 6-pin | |
| Graphics Features | ||
| DirectX | 12 (11_0) | 12 (11_0) |
| OpenGL | 4.6 | 4.6 |
| OpenCL | 3.0 | 3.0 |
| Vulkan | 1.1 | 1.1 |
| CUDA | 3.0 | 3.0 |
| Shader Model | 5.1 | 5.1 |