AMD Radeon RX 560X Mobile vs NVIDIA GeForce MX450 25W
Graphics Processor
| GPU model | Polaris 21 | TU117 |
|---|---|---|
| GPU variant | Polaris 21M XT | N18S-G5 |
| Architecture | GCN 4.0 | Turing |
| Foundry | GlobalFoundries | TSMC |
| Manufacturing process | 14 nm | 12 nm |
| Number of transistors | 3,000 million | 4,700 million |
| Die size | 123 mm² | 200 mm² |
Mobile graphics
| Release date | Apr 11th, 2018 | Aug 15th, 2020 |
|---|---|---|
| Generation | Mobility Radeon (RX M500X) | GeForce MX (4xx) |
| Production | Active | Active |
| Interface | MXM-B (3.0) | PCIe 4.0 x4 |
| Predecessor | Crystal System | — |
Clocks
| GPU clock | 1275 MHz | — |
|---|---|---|
| Memory clock | 1450 MHz 5.8 Gbps effective | 1250 MHz 10 Gbps effective |
| Base clock | — | 720 MHz |
| Boost clock | — | 930 MHz |
Memory Configuration
| Memory size | 4 GB | 2 GB |
|---|---|---|
| Memory type | GDDR5 | GDDR6 |
| Memory bus width | 128 bit | 64 bit |
| Bandwidth | 92.80 GB/s | 80.00 GB/s |
Render Configuration
| Shading units | 1024 | 896 |
|---|---|---|
| TMUs | 64 | 56 |
| ROPs | 16 | 32 |
| Compute units | 16 | — |
| Cache L1 | 16 KB (per CU) | 64 KB (per SM) |
| Cache L2 | 1024 KB | 512 KB |
| SM count | — | 14 |
Performance
| Pixel rate | 20.40 GPixel/s | 29.76 GPixel/s |
|---|---|---|
| Texture rate | 81.60 GTexel/s | 52.08 GTexel/s |
| FP16 (half) performance | 2.611 TFLOPS (1:1) | 3.333 TFLOPS (2:1) |
| FP32 (float) performance | 2.611 TFLOPS | 1.667 TFLOPS |
| FP64 (double) performance | 163.2 GFLOPS (1:16) | 52.08 GFLOPS (1:32) |
Dimensions & Outputs
| Slot width | MXM Module | — |
|---|---|---|
| TDP | 65 W | 25 W |
| Outputs | No outputs | No outputs |
| Power connectors | None | None |
API Support & Features
| DirectX | 12 (12_0) | 12 (12_1) |
|---|---|---|
| OpenGL | 4.6 | 4.6 |
| OpenCL | 2.1 | 3.0 |
| Vulkan | 1.2 | 1.2 |
| Shader model | 6.4 | 6.6 |
| CUDA | — | 7.5 |
