Product Compare
AMD Radeon 680M vs AMD Radeon RX 455 OEM
| GPU | GPU | |
|---|---|---|
| Graphics Card | ||
| Release Date | Jan 2022 | Jun 2016 |
| Generation | Navi II IGP | Arctic Islands |
| Type | Integrated | Desktop |
| Bus Interface | PCIe 4.0 x8 | PCIe 3.0 x16 |
| Clock Speeds | ||
| Base Clock | 2000 MHz | |
| Boost Clock | 2200 MHz | |
| Memory Clock | System Shared | 1625 MHz |
| Memory | ||
| Memory Size | System Shared | 2GB |
| Memory Type | System Shared | GDDR5 |
| Memory Bus | System Shared | 128bit |
| Bandwidth | System Dependent | 104.0GB/s |
| Render Config | ||
| Compute Units | 12 | 12 |
| Shading Units | 768 | 768 |
| TMUs | 48 | 48 |
| ROPs | 32 | 16 |
| RT Cores | 12 | |
| L1 Cache | 128 KB per Array | 16 KB (per CU) |
| L2 Cache | 2 MB | 256 KB |
| Theoretical Performance | ||
| Pixel Rate | 70.40 GPixel/s | 16.80 GPixel/s |
| Texture Rate | 105.6 GTexel/s | 50.40 GTexel/s |
| FP16 (half) | 6.758 TFLOPS | |
| FP32 (float) | 3.379 TFLOPS | 1.613 TFLOPS |
| FP64 (double) | 211.2 GFLOPS | 100.8 GFLOPS |
| Graphics Processor | ||
| GPU Name | Rembrandt | Tobago |
| Architecture | RDNA 2.0 | GCN 2.0 |
| Foundry | TSMC | TSMC |
| Process Size | 6 nm | 28 nm |
| Transistors | 13.1 billion | 2.08 billion |
| Die Size | 208 mm² | 160 mm² |
| GPU Variant | Tobago PRO(215-0875010) | |
| Board Design | ||
| TDP | 50W | 100W |
| Outputs | Portable Device Dependent | 1x DVI1x HDMI 1.4a1x DisplayPort 1.2 |
| Power Connectors | None | 1x 6-pin |
| Suggested PSU | 300 W | |
| Graphics Features | ||
| DirectX | 12 Ultimate (12_2) | 12 (12_0) |
| OpenGL | 4.6 | 4.6 |
| OpenCL | 2.0 | 2.0 |
| Vulkan | 1.3 | 1.2 |
| Shader Model | 6.7 | 6.3 |