Product Compare
NVIDIA GeForce GTX 680 Mac Edition vs AMD Radeon 660M
| GPU | GPU | |
|---|---|---|
| Graphics Card | ||
| Release Date | Apr 2013 | Jan 2022 |
| Generation | GeForce 600 | Rembrandt |
| Type | Desktop | Integrated |
| Bus Interface | PCIe 2.0 x16 | PCIe 4.0 x8 |
| Clock Speeds | ||
| Base Clock | 1006 MHz | 1500 MHz |
| Boost Clock | 1058 MHz | 1900 MHz |
| Memory Clock | 1502 MHz | System Shared |
| Memory | ||
| Memory Size | 2GB | System Shared |
| Memory Type | GDDR5 | System Shared |
| Memory Bus | 256bit | System Shared |
| Bandwidth | 192.3GB/s | System Dependent |
| Render Config | ||
| Shading Units | 1536 | 384 |
| TMUs | 128 | 24 |
| ROPs | 32 | 16 |
| L1 Cache | 16 KB (per SMX) | 128 KB per Array |
| L2 Cache | 512 KB | 2 MB |
| Compute Units | 6 | |
| RT Cores | 6 | |
| Theoretical Performance | ||
| Pixel Rate | 33.86 GPixel/s | 30.40 GPixel/s |
| Texture Rate | 135.4 GTexel/s | 45.60 GTexel/s |
| FP32 (float) | 3.250 TFLOPS | 1459 GFLOPS |
| FP64 (double) | 135.4 GFLOPS | 91.20 GFLOPS |
| FP16 (half) | 2.918 TFLOPS | |
| Graphics Processor | ||
| GPU Name | GK104 | Rembrandt |
| GPU Variant | GK104-400-A2 | |
| Architecture | Kepler | RDNA 2.0 |
| Foundry | TSMC | TSMC |
| Process Size | 28 nm | 6 nm |
| Transistors | 3.54 billion | 13.1 billion |
| Die Size | 294 mm² | 210 mm² |
| Board Design | ||
| TDP | 195W | 15W |
| Suggested PSU | 450 W | |
| Outputs | 2x DVI1x HDMI 1.4a1x DisplayPort 1.2 | No outputs |
| Power Connectors | 2x 6-pin | None |
| Graphics Features | ||
| DirectX | 12 (11_0) | 12 Ultimate (12_2) |
| OpenGL | 4.6 | 4.6 |
| OpenCL | 3.0 | 2.0 |
| Vulkan | 1.1 | 1.2 |
| CUDA | 3.0 | |
| Shader Model | 5.1 | 6.5 |