AMD Radeon R7 M445 vs AMD Radeon R9 M280X
Graphics Processor
| GPU model | Meso | Saturn |
|---|---|---|
| GPU variant | Meso PRO (216-0864032) | Saturn XT |
| Architecture | GCN 3.0 | GCN 2.0 |
| Foundry | TSMC | TSMC |
| Manufacturing process | 28 nm | 28 nm |
| Number of transistors | 1,550 million | 2,080 million |
| Die size | 125 mm² | 160 mm² |
Mobile graphics
| Release date | May 15th, 2016 | Feb 5th, 2015 |
|---|---|---|
| Generation | Crystal System (R7 M400) | Crystal System (R9 M200) |
| Production | End-of-life | End-of-life |
| Interface | PCIe 3.0 x8 | PCIe 3.0 x16 |
| Predecessor | Solar System | Solar System |
| Successor | Mobility Radeon | Mobility Radeon |
Clocks
| Base clock | 780 MHz | 900 MHz |
|---|---|---|
| Boost clock | 920 MHz | 1000 MHz |
| Memory clock | 1000 MHz 4 Gbps effective | 1375 MHz 5.5 Gbps effective |
Memory Configuration
| Memory size | 4 GB | 4 GB |
|---|---|---|
| Memory type | GDDR5 | GDDR5 |
| Memory bus width | 64 bit | 128 bit |
| Bandwidth | 32.00 GB/s | 88.00 GB/s |
Render Configuration
| Shading units | 320 | 896 |
|---|---|---|
| TMUs | 20 | 56 |
| ROPs | 8 | 16 |
| Compute units | 5 | 14 |
| Cache L1 | 16 KB (per CU) | 16 KB (per CU) |
| Cache L2 | 128 KB | 256 KB |
Performance
| Pixel rate | 7.360 GPixel/s | 16.00 GPixel/s |
|---|---|---|
| Texture rate | 18.40 GTexel/s | 56.00 GTexel/s |
| FP16 (half) performance | 588.8 GFLOPS (1:1) | — |
| FP32 (float) performance | 588.8 GFLOPS | 1.792 TFLOPS |
| FP64 (double) performance | 36.80 GFLOPS (1:16) | 112.0 GFLOPS (1:16) |
Dimensions & Outputs
| Slot width | IGP | — |
|---|---|---|
| TDP | unknown | unknown |
| Outputs | No outputs | No outputs |
API Support & Features
| DirectX | 12 (12_0) | 12 (12_0) |
|---|---|---|
| OpenGL | 4.6 | 4.6 |
| OpenCL | 2.0 | 2.0 |
| Vulkan | 1.2 | 1.2 |
| Shader model | 6.0 | 6.3 |
