Product Compare
NVIDIA GeForce GTX 680 Mac Edition vs NVIDIA GeForce GTX 780 Ti Engineering Sample
| GPU | GPU | |
|---|---|---|
| Graphics Card | ||
| Release Date | Apr 2013 | Unknown |
| Generation | GeForce 600 | GeForce 700 |
| Type | Desktop | Desktop |
| Bus Interface | PCIe 2.0 x16 | PCIe 3.0 x16 |
| Clock Speeds | ||
| Base Clock | 1006 MHz | 875 MHz |
| Boost Clock | 1058 MHz | 928 MHz |
| Memory Clock | 1502 MHz | 1753 MHz |
| Memory | ||
| Memory Size | 2GB | 3GB |
| Memory Type | GDDR5 | GDDR5 |
| Memory Bus | 256bit | 384bit |
| Bandwidth | 192.3GB/s | 336.6GB/s |
| Render Config | ||
| Shading Units | 1536 | 2880 |
| TMUs | 128 | 240 |
| ROPs | 32 | 48 |
| L1 Cache | 16 KB (per SMX) | 16 KB (per SMX) |
| L2 Cache | 512 KB | 1536 KB |
| Theoretical Performance | ||
| Pixel Rate | 33.86 GPixel/s | 55.68 GPixel/s |
| Texture Rate | 135.4 GTexel/s | 222.7 GTexel/s |
| FP32 (float) | 3.250 TFLOPS | 5.345 TFLOPS |
| FP64 (double) | 135.4 GFLOPS | 222.7 GFLOPS |
| Graphics Processor | ||
| GPU Name | GK104 | GK180 |
| GPU Variant | GK104-400-A2 | GK180-425-A1 |
| Architecture | Kepler | Kepler |
| Foundry | TSMC | TSMC |
| Process Size | 28 nm | 28 nm |
| Transistors | 3.54 billion | 7.08 billion |
| Die Size | 294 mm² | 561 mm² |
| Board Design | ||
| TDP | 195W | 250W |
| Suggested PSU | 450 W | 600 W |
| Outputs | 2x DVI1x HDMI 1.4a1x DisplayPort 1.2 | 2x DVI1x HDMI 1.4a1x DisplayPort 1.2 |
| Power Connectors | 2x 6-pin | 1x 6-pin + 1x 8-pin |
| Graphics Features | ||
| DirectX | 12 (11_0) | 12 (11_0) |
| OpenGL | 4.6 | 4.6 |
| OpenCL | 3.0 | 3.0 |
| Vulkan | 1.1 | 1.2.175 |
| CUDA | 3.0 | 3.5 |
| Shader Model | 5.1 | 5.1 |