ATI Radeon HD 5870 Mac Edition vs AMD Radeon HD 6950
What is the difference between ATI Radeon HD 5870 Mac Edition and AMD Radeon HD 6950. Find out which graphics card has better performance.
Graphics Processor (GPU)
| Cypress | GPU Name | Cayman |
| Cypress XT (215-0735033) | Model number | Cayman PRO (215-0807019) |
| TeraScale 2 | Architecture | TeraScale 3 |
| TSMC | Foundry | TSMC |
| 40 nm | Process Size | 40 nm |
| 2,154 million | Transistors | 2,640 million |
| 334 mm² | Die Size | 389 mm² |
Graphics Card
| Jun 30th, 2010 | Release Date | Dec 14th, 2010 |
| Evergreen (HD 5800) | Family | Northern Islands (HD 6900) |
| End-of-life | Production | End-of-life |
| 479 USD | Launch Price | 299 USD |
| Radeon R700 | Predecessor | Evergreen |
| PCIe 2.0 x16 | Bus Interface | PCIe 2.0 x16 |
Memory
| 1024 MB | Memory Size | 2 GB |
| GDDR5 | Memory Type | GDDR5 |
| 256 bit | Memory Bus | 256 bit |
| 153.0 GB/s | Bandwidth | 160.0 GB/s |
Performance
| 27.20 GPixel/s | Pixel fillrate | 25.60 GPixel/s |
| 68.00 GTexel/s | Texture fillrate | 70.40 GTexel/s |
| 2.720 TFLOPS | FP32 (float) performance | 2.253 TFLOPS |
| 544.0 GFLOPS (1:5) | FP64 (double) performance | 563.2 GFLOPS (1:4) |
Clock Speeds
| 1195 MHz 4.8 Gbps effective | Memory Clock | 1250 MHz 5 Gbps effective |
| 850 MHz | GPU Clock | 800 MHz |
Render Config
| 1600 | Shading Units | 1408 |
| 80 | TMUs | 88 |
| 32 | ROPs | 32 |
| 20 | Compute Units | 22 |
| 8 KB (per CU) | L1 Cache | 8 KB (per CU) |
| 512 KB | L2 Cache | 512 KB |
Board Design
| Dual-slot | Slot Width | Dual-slot |
| 279 mm 11 inches | Length | 286 mm 11.3 inches |
| 228 W | Thermal design power (TDP) | 200 W |
| 550 W | Suggested PSU | 550 W |
| 1x DVI 2x mini-DisplayPort | Display Connectors | 2x DVI 1x HDMI 2x mini-DisplayPort |
| 2x 6-pin | Power Connectors | 2x 6-pin |
| C078 | Board Number | C216-47 |
API support
| 11.2 (11_0) | DirectX | 11.2 (11_0) |
| 4.4 | OpenGL | 4.4 |
| 1.2 | OpenCL | 1.2 |
| N/A | Vulkan | N/A |
| 5.0 | Shader Model | 5.0 |