Product Compare
AMD Radeon 660M vs AMD Radeon Pro Vega II Duo
| GPU | GPU | |
|---|---|---|
| Graphics Card | ||
| Release Date | Jan 2022 | Jun 2019 |
| Generation | Rembrandt | Radeon Pro Mac |
| Type | Integrated | Desktop |
| Bus Interface | PCIe 4.0 x8 | Apple MPX |
| Clock Speeds | ||
| Base Clock | 1500 MHz | 1400 MHz |
| Boost Clock | 1900 MHz | 1720 MHz |
| Memory Clock | System Shared | 1000 MHz |
| Memory | ||
| Memory Size | System Shared | 32GB |
| Memory Type | System Shared | HBM2 |
| Memory Bus | System Shared | 4096bit |
| Bandwidth | System Dependent | 1020GB/s |
| Render Config | ||
| Compute Units | 6 | 64 |
| Shading Units | 384 | 4096 |
| TMUs | 24 | 256 |
| ROPs | 16 | 64 |
| RT Cores | 6 | |
| L1 Cache | 128 KB per Array | 16 KB (per CU) |
| L2 Cache | 2 MB | 4 MB |
| Theoretical Performance | ||
| Pixel Rate | 30.40 GPixel/s | 110.1 GPixel/s |
| Texture Rate | 45.60 GTexel/s | 440.3 GTexel/s |
| FP16 (half) | 2.918 TFLOPS | 28.18 TFLOPS |
| FP32 (float) | 1459 GFLOPS | 14.09 TFLOPS |
| FP64 (double) | 91.20 GFLOPS | 7.045 TFLOPS |
| Graphics Processor | ||
| GPU Name | Rembrandt | Vega 20 |
| Architecture | RDNA 2.0 | GCN 5.1 |
| Foundry | TSMC | TSMC |
| Process Size | 6 nm | 7 nm |
| Transistors | 13.1 billion | 13.23 billion |
| Die Size | 210 mm² | 331 mm² |
| GPU Variant | Vega 20 XT | |
| Board Design | ||
| TDP | 15W | 475W |
| Outputs | No outputs | 1x HDMI 2.0b4x Thunderbolt |
| Power Connectors | None | None |
| Suggested PSU | 850 W | |
| Graphics Features | ||
| DirectX | 12 Ultimate (12_2) | 12 (12_1) |
| OpenGL | 4.6 | 4.6 |
| OpenCL | 2.0 | 2.1 |
| Vulkan | 1.2 | 1.3 |
| Shader Model | 6.5 | 6.7 |