AMD Radeon HD 7970M vs AMD Radeon Pro 560X
Graphics Processor
| GPU model | Wimbledon | Polaris 21 |
|---|---|---|
| GPU variant | Wimbledon XT (216-0836036) | Polaris 21 XT (215-0908004) |
| Architecture | GCN 1.0 | GCN 4.0 |
| Foundry | TSMC | GlobalFoundries |
| Manufacturing process | 28 nm | 14 nm |
| Number of transistors | 2,800 million | 3,000 million |
| Die size | 212 mm² | 123 mm² |
Mobile graphics
| Release date | Apr 24th, 2012 | Jul 16th, 2018 |
|---|---|---|
| Generation | London (HD 7900M) | Radeon Pro Mac (500X Series) |
| Production | End-of-life | Active |
| Interface | MXM-B (3.0) | PCIe 3.0 x8 |
| Predecessor | Vancouver | — |
| Successor | Solar System | — |
Clocks
| GPU clock | 850 MHz | 1004 MHz |
|---|---|---|
| Memory clock | 1200 MHz 4.8 Gbps effective | 1470 MHz 5.9 Gbps effective |
Memory Configuration
| Memory size | 2 GB | 4 GB |
|---|---|---|
| Memory type | GDDR5 | GDDR5 |
| Memory bus width | 256 bit | 128 bit |
| Bandwidth | 153.6 GB/s | 94.08 GB/s |
Render Configuration
| Shading units | 1280 | 1024 |
|---|---|---|
| TMUs | 80 | 64 |
| ROPs | 32 | 16 |
| Compute units | 20 | 16 |
| Cache L1 | 16 KB (per CU) | 16 KB (per CU) |
| Cache L2 | 512 KB | 1024 KB |
Performance
| Pixel rate | 27.20 GPixel/s | 16.06 GPixel/s |
|---|---|---|
| Texture rate | 68.00 GTexel/s | 64.26 GTexel/s |
| FP32 (float) performance | 2.176 TFLOPS | 2.056 TFLOPS |
| FP64 (double) performance | 136.0 GFLOPS (1:16) | 128.5 GFLOPS (1:16) |
| FP16 (half) performance | — | 2.056 TFLOPS (1:1) |
Dimensions & Outputs
| Slot width | MXM Module | IGP |
|---|---|---|
| TDP | 100 W | 75 W |
| Outputs | No outputs | No outputs |
| Power connectors | None | None |
| Board number | C429 | — |
API Support & Features
| DirectX | 12 (11_1) | 12 (12_0) |
|---|---|---|
| OpenGL | 4.6 | 4.6 |
| OpenCL | 1.2 | 2.1 |
| Vulkan | 1.2 | 1.2 |
| Shader model | 5.1 | 6.4 |
