AMD Radeon HD 7870M vs AMD Radeon HD 6970M Rebrand
What is the difference between AMD Radeon HD 7870M and AMD Radeon HD 6970M Rebrand. Find out which graphics card has better performance.
Graphics Processor (GPU)
| Heathrow | GPU Name | Broadway |
| Heathrow XT (216-0835033) | Model number | Broadway XT |
| GCN 1.0 | Architecture | TeraScale 2 |
| TSMC | Foundry | TSMC |
| 28 nm | Process Size | 40 nm |
| 1,500 million | Transistors | 1,040 million |
| 123 mm² | Die Size | 166 mm² |
Graphics Card
| Apr 24th, 2012 | Release Date | Jan 4th, 2011 |
| London (HD 7800M) | Family | Vancouver (HD 6900M) |
| End-of-life | Production | End-of-life |
| Vancouver | Predecessor | Manhattan |
| PCIe 3.0 x16 | Bus Interface | MXM-B (3.0) |
Memory
| 2 GB | Memory Size | 1024 MB |
| GDDR5 | Memory Type | GDDR5 |
| 128 bit | Memory Bus | 128 bit |
| 64.00 GB/s | Bandwidth | 64.00 GB/s |
Performance
| 12.80 GPixel/s | Pixel fillrate | 12.80 GPixel/s |
| 32.00 GTexel/s | Texture fillrate | 32.00 GTexel/s |
| 1,024 GFLOPS | FP32 (float) performance | 1,280 GFLOPS |
Clock Speeds
| 1000 MHz 4 Gbps effective | Memory Clock | 1000 MHz 4 Gbps effective |
| 800 MHz | GPU Clock | 800 MHz |
Render Config
| 640 | Shading Units | 800 |
| 40 | TMUs | 40 |
| 16 | ROPs | 16 |
| 10 | Compute Units | 10 |
| 16 KB (per CU) | L1 Cache | 8 KB (per CU) |
| 256 KB | L2 Cache | 256 KB |
Board Design
| 45 W | Thermal design power (TDP) | 75 W |
| No outputs | Display Connectors | No outputs |
API support
| 12 (11_1) | DirectX | 11.2 (11_0) |
| 4.6 | OpenGL | 4.4 |
| 1.2 | OpenCL | 1.2 |
| 1.2 | Vulkan | N/A |
| 5.1 | Shader Model | 5.0 |