NVIDIA GeForce 7900 GT vs AMD Radeon HD 7550M
What is the difference between NVIDIA GeForce 7900 GT and AMD Radeon HD 7550M. Find out which graphics card has better performance.
Graphics Processor (GPU)
| G71 | GPU Name | Thames |
| G71-GT-N-A2 | Model number | Thames PRO |
| Curie | Architecture | TeraScale 2 |
| TSMC | Foundry | TSMC |
| 90 nm | Process Size | 40 nm |
| 278 million | Transistors | 716 million |
| 196 mm² | Die Size | 104 mm² |
Graphics Card
| Mar 9th, 2006 | Release Date | Jan 7th, 2012 |
| GeForce 7 PCIe (7900) | Family | London (HD 7500M) |
| End-of-life | Production | End-of-life |
| GeForce 6 PCIe | Predecessor | Vancouver |
| PCIe 1.0 x16 | Bus Interface | PCIe 2.0 x16 |
Memory
| 256 MB | Memory Size | 1024 MB |
| GDDR3 | Memory Type | DDR3 |
| 256 bit | Memory Bus | 128 bit |
| 42.24 GB/s | Bandwidth | 28.80 GB/s |
Performance
| 7.200 GPixel/s | Pixel fillrate | 8.000 GPixel/s |
| 10.80 GTexel/s | Texture fillrate | 12.00 GTexel/s |
Clock Speeds
| 660 MHz 1320 Mbps effective | Memory Clock | 900 MHz 1800 Mbps effective |
| 450 MHz | GPU Clock | 500 MHz |
Render Config
| 24 | TMUs | 24 |
| 16 | ROPs | 16 |
Board Design
| 48 W | Thermal design power (TDP) | 14 W |
| 2x DVI 1x S-Video | Display Connectors | No outputs |
API support
| 9.0c (9_3) | DirectX | 11.2 (11_0) |
| 2.1 | OpenGL | 4.4 |
| N/A | OpenCL | 1.2 |
| N/A | Vulkan | N/A |
| 3.0 | Shader Model | 5.0 |