AMD Radeon R8 M445DX vs NVIDIA GeForce 825M
Graphics Processor
| GPU model | Meso | GK208 |
|---|---|---|
| GPU variant | Meso PRO (216-0864032) | — |
| Architecture | GCN 3.0 | Kepler 2.0 |
| Foundry | TSMC | TSMC |
| Manufacturing process | 28 nm | 28 nm |
| Number of transistors | 1,550 million | 1,020 million |
| Die size | 125 mm² | 87 mm² |
Integrated Graphics
| Release date | May 15th, 2016 | — |
|---|---|---|
| Generation | Crystal System (Rx M400) | — |
| Production | End-of-life | — |
| Interface | IGP | — |
Clocks
| Base clock | 780 MHz | 850 MHz |
|---|---|---|
| Boost clock | 1021 MHz | 941 MHz |
| Memory clock | System Shared | 900 MHz 1800 Mbps effective |
Memory Configuration
| Memory size | System Shared | 1024 MB |
|---|---|---|
| Memory type | System Shared | DDR3 |
| Memory bus width | System Shared | 64 bit |
| Bandwidth | System Dependent | 14.40 GB/s |
Render Configuration
| Shading units | 320 | 384 |
|---|---|---|
| TMUs | 20 | 32 |
| ROPs | 8 | 8 |
| Compute units | 5 | — |
| Cache L1 | 16 KB (per CU) | 16 KB (per SMX) |
| Cache L2 | 128 KB | 512 KB |
| SMX count | — | 2 |
Performance
| Pixel rate | 8.168 GPixel/s | 7.528 GPixel/s |
|---|---|---|
| Texture rate | 20.42 GTexel/s | 30.11 GTexel/s |
| FP16 (half) performance | 653.4 GFLOPS (1:1) | — |
| FP32 (float) performance | 653.4 GFLOPS | 722.7 GFLOPS |
| FP64 (double) performance | 40.84 GFLOPS (1:16) | 30.11 GFLOPS (1:24) |
Dimensions & Outputs
| Slot width | IGP | IGP |
|---|---|---|
| TDP | unknown | 33 W |
| Outputs | No outputs | No outputs |
| Power connectors | — | None |
API Support & Features
| DirectX | 12 (12_0) | 12 (11_0) |
|---|---|---|
| OpenGL | 4.6 | 4.6 |
| OpenCL | 2.0 | 3.0 |
| Vulkan | 1.2 | 1.1 |
| Shader model | 6.0 | 5.1 |
| CUDA | — | 3.5 |
Other Features
Mobile graphics
| Release date | — | Jan 27th, 2014 |
|---|---|---|
| Generation | — | GeForce 800M |
| Production | — | End-of-life |
| Interface | — | PCIe 3.0 x8 |
| Predecessor | — | GeForce 700M |
| Successor | — | GeForce 900M |
