AMD Radeon HD 7970M vs AMD Radeon HD 6870 1600SP Edition
What is the difference between AMD Radeon HD 7970M and AMD Radeon HD 6870 1600SP Edition. Find out which graphics card has better performance.
Graphics Processor (GPU)
| Wimbledon | GPU Name | Cypress |
| Wimbledon XT (216-0836036) | Model number | Cypress XT (215-0735033) |
| GCN 1.0 | Architecture | TeraScale 2 |
| TSMC | Foundry | TSMC |
| 28 nm | Process Size | 40 nm |
| 2,800 million | Transistors | 2,154 million |
| 212 mm² | Die Size | 334 mm² |
Graphics Card
| Apr 24th, 2012 | Release Date | Jan 14th, 2013 |
| London (HD 7900M) | Family | Northern Islands (HD 6800) |
| End-of-life | Production | End-of-life |
| Vancouver | Predecessor | Evergreen |
| MXM-B (3.0) | Bus Interface | PCIe 2.0 x16 |
Memory
| 2 GB | Memory Size | 1024 MB |
| GDDR5 | Memory Type | GDDR5 |
| 256 bit | Memory Bus | 256 bit |
| 153.6 GB/s | Bandwidth | 134.4 GB/s |
Performance
| 27.20 GPixel/s | Pixel fillrate | 27.20 GPixel/s |
| 68.00 GTexel/s | Texture fillrate | 68.00 GTexel/s |
| 2.176 TFLOPS | FP32 (float) performance | 2.720 TFLOPS |
| 136.0 GFLOPS (1:16) | FP64 (double) performance | 544.0 GFLOPS (1:5) |
Clock Speeds
| 1200 MHz 4.8 Gbps effective | Memory Clock | 1050 MHz 4.2 Gbps effective |
| 850 MHz | GPU Clock | 850 MHz |
Render Config
| 1280 | Shading Units | 1600 |
| 80 | TMUs | 80 |
| 32 | ROPs | 32 |
| 20 | Compute Units | 20 |
| 16 KB (per CU) | L1 Cache | 8 KB (per CU) |
| 512 KB | L2 Cache | 512 KB |
Board Design
| MXM Module | Slot Width | Dual-slot |
| 100 W | Thermal design power (TDP) | 175 W |
| No outputs | Display Connectors | 2x DVI 1x HDMI 2x mini-DisplayPort |
| None | Power Connectors | 2x 6-pin |
| C429 | Board Number | C008, E140 |
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 |