AMD Radeon RX 560X Mobile vs NVIDIA GeForce GTX 870M
Graphics Processor
| GPU model | Polaris 21 | GK104 |
|---|---|---|
| GPU variant | Polaris 21M XT | N15E-GT-A2 |
| Architecture | GCN 4.0 | Kepler |
| Foundry | GlobalFoundries | TSMC |
| Manufacturing process | 14 nm | 28 nm |
| Number of transistors | 3,000 million | 3,540 million |
| Die size | 123 mm² | 294 mm² |
Mobile graphics
| Release date | Apr 11th, 2018 | Mar 12th, 2014 |
|---|---|---|
| Generation | Mobility Radeon (RX M500X) | GeForce 800M |
| Production | Active | End-of-life |
| Interface | MXM-B (3.0) | MXM-B (3.0) |
| Predecessor | Crystal System | GeForce 700M |
| Successor | — | GeForce 900M |
Clocks
| GPU clock | 1275 MHz | — |
|---|---|---|
| Memory clock | 1450 MHz 5.8 Gbps effective | 1250 MHz 5 Gbps effective |
| Base clock | — | 941 MHz |
| Boost clock | — | 967 MHz |
Memory Configuration
| Memory size | 4 GB | 3 GB |
|---|---|---|
| Memory type | GDDR5 | GDDR5 |
| Memory bus width | 128 bit | 192 bit |
| Bandwidth | 92.80 GB/s | 120.0 GB/s |
Render Configuration
| Shading units | 1024 | 1344 |
|---|---|---|
| TMUs | 64 | 112 |
| ROPs | 16 | 24 |
| Compute units | 16 | — |
| Cache L1 | 16 KB (per CU) | 16 KB (per SMX) |
| Cache L2 | 1024 KB | 384 KB |
| SMX count | — | 7 |
Performance
| Pixel rate | 20.40 GPixel/s | 27.08 GPixel/s |
|---|---|---|
| Texture rate | 81.60 GTexel/s | 108.3 GTexel/s |
| FP16 (half) performance | 2.611 TFLOPS (1:1) | — |
| FP32 (float) performance | 2.611 TFLOPS | 2.599 TFLOPS |
| FP64 (double) performance | 163.2 GFLOPS (1:16) | 108.3 GFLOPS (1:24) |
Dimensions & Outputs
| Slot width | MXM Module | MXM Module |
|---|---|---|
| TDP | 65 W | 100 W |
| Outputs | No outputs | No outputs |
| Power connectors | None | None |
| Board number | — | P2053 SKU 3 |
API Support & Features
| DirectX | 12 (12_0) | 12 (11_0) |
|---|---|---|
| OpenGL | 4.6 | 4.6 |
| OpenCL | 2.1 | 3.0 |
| Vulkan | 1.2 | 1.1 |
| Shader model | 6.4 | 5.1 |
| CUDA | — | 3.0 |
