AMD Radeon HD 8870 OEM vs NVIDIA GeForce GTX 675MX Mac Edition
What is the difference between AMD Radeon HD 8870 OEM and NVIDIA GeForce GTX 675MX Mac Edition. Find out which graphics card has better performance.
Graphics Processor (GPU)
| Pitcairn | GPU Name | GK104 |
| Pitcairn XT (215-0828047) | Model number | N13E-GSR-A2 |
| GCN 1.0 | Architecture | Kepler |
| TSMC | Foundry | TSMC |
| 28 nm | Process Size | 28 nm |
| 2,800 million | Transistors | 3,540 million |
| 212 mm² | Die Size | 294 mm² |
Graphics Card
| Jan 8th, 2013 | Release Date | Apr 1st, 2013 |
| Sea Islands (HD 8800) | Family | GeForce 600M |
| End-of-life | Production | End-of-life |
| Southern Islands | Predecessor | GeForce 500M |
| PCIe 3.0 x16 | Bus Interface | PCIe 3.0 x16 |
Memory
| 2 GB | Memory Size | 1024 MB |
| GDDR5 | Memory Type | GDDR5 |
| 256 bit | Memory Bus | 256 bit |
| 153.6 GB/s | Bandwidth | 160.0 GB/s |
Performance
| 32.00 GPixel/s | Pixel fillrate | 20.13 GPixel/s |
| 80.00 GTexel/s | Texture fillrate | 80.53 GTexel/s |
| 2.560 TFLOPS | FP32 (float) performance | 1.933 TFLOPS |
| 160.0 GFLOPS (1:16) | FP64 (double) performance | 80.53 GFLOPS (1:24) |
Clock Speeds
| 1200 MHz 4.8 Gbps effective | Memory Clock | 1250 MHz 5 Gbps effective |
| 1000 MHz | GPU Clock | 719 MHz |
Render Config
| 1280 | Shading Units | 1344 |
| 80 | TMUs | 112 |
| 32 | ROPs | 32 |
| 16 KB (per CU) | L1 Cache | 16 KB (per SMX) |
| 512 KB | L2 Cache | 512 KB |
Board Design
| 175 W | Thermal design power (TDP) | 100 W |
| 1x DVI 1x HDMI 2x mini-DisplayPort | Display Connectors | No outputs |
API support
| 12 (11_1) | DirectX | 12 (11_0) |
| 4.6 | OpenGL | 4.6 |
| 1.2 | OpenCL | 3.0 |
| 1.2 | Vulkan | 1.1 |
| 5.1 | Shader Model | 5.1 |