AMD Radeon RX 560X vs AMD Radeon HD 7870 GHz Edition
What is the difference between AMD Radeon RX 560X and AMD Radeon HD 7870 GHz Edition. Find out which graphics card has better performance.
Graphics Processor (GPU)
| Polaris 21 | GPU Name | Pitcairn |
| Polaris 21 XT (215-0908004) | Model number | Pitcairn XT (215-0828047) |
| GCN 4.0 | Architecture | GCN 1.0 |
| GlobalFoundries | Foundry | TSMC |
| 14 nm | Process Size | 28 nm |
| 3,000 million | Transistors | 2,800 million |
| 123 mm² | Die Size | 212 mm² |
Graphics Card
| Apr 11th, 2018 | Release Date | Mar 5th, 2012 |
| Polaris (RX 500X) | Family | Southern Islands (HD 7800) |
| Active | Production | End-of-life |
| Polaris | Predecessor | Northern Islands |
| PCIe 3.0 x8 | Bus Interface | PCIe 3.0 x16 |
Memory
| 4 GB | Memory Size | 2 GB |
| GDDR5 | Memory Type | GDDR5 |
| 128 bit | Memory Bus | 256 bit |
| 112.0 GB/s | Bandwidth | 153.6 GB/s |
Performance
| 20.40 GPixel/s | Pixel fillrate | 32.00 GPixel/s |
| 81.60 GTexel/s | Texture fillrate | 80.00 GTexel/s |
| 2.611 TFLOPS | FP32 (float) performance | 2.560 TFLOPS |
| 163.2 GFLOPS (1:16) | FP64 (double) performance | 160.0 GFLOPS (1:16) |
Clock Speeds
| 1750 MHz 7 Gbps effective | Memory Clock | 1200 MHz 4.8 Gbps effective |
Render Config
| 1024 | Shading Units | 1280 |
| 64 | TMUs | 80 |
| 16 | ROPs | 32 |
| 16 | Compute Units | 20 |
| 16 KB (per CU) | L1 Cache | 16 KB (per CU) |
| 1024 KB | L2 Cache | 512 KB |
Board Design
| Dual-slot | Slot Width | Dual-slot |
| 170 mm 6.7 inches | Length | 241 mm 9.5 inches |
| 75 W | Thermal design power (TDP) | 175 W |
| 250 W | Suggested PSU | 450 W |
| 1x DVI 1x HDMI 1x DisplayPort | Display Connectors | 1x DVI 1x HDMI 2x mini-DisplayPort |
| None | Power Connectors | 2x 6-pin |
| C994 | Board Number | C401-47 |
API support
| 12 (12_0) | DirectX | 12 (11_1) |
| 4.6 | OpenGL | 4.6 |
| 2.1 | OpenCL | 1.2 |
| 1.2 | Vulkan | 1.2 |
| 6.4 | Shader Model | 5.1 |