NVIDIA GeForce 7900 GS vs ATI Radeon HD 3870 X2
What is the difference between NVIDIA GeForce 7900 GS and ATI Radeon HD 3870 X2. Find out which graphics card has better performance.
Graphics Processor (GPU)
| G71 | GPU Name | R680 |
| G71-N-A2 | Model number | R680 XT (215-0708017) |
| Curie | Architecture | TeraScale |
| TSMC | Foundry | TSMC |
| 90 nm | Process Size | 55 nm |
| 278 million | Transistors | 666 million |
| 196 mm² | Die Size | 192 mm² |
Graphics Card
| May 1st, 2006 | Release Date | Jan 26th, 2008 |
| GeForce 7 PCIe (7900) | Family | Radeon R600 (HD 3800) |
| End-of-life | Production | End-of-life |
| 259 USD | Launch Price | 449 USD |
| GeForce 6 PCIe | Predecessor | Radeon R500 PCIe |
| PCIe 1.0 x16 | Bus Interface | PCIe 2.0 x16 |
Memory
| 256 MB | Memory Size | 512 MB x2 |
| GDDR3 | Memory Type | GDDR3 |
| 256 bit | Memory Bus | 256 bit x2 |
Clock Speeds
| 660 MHz 1320 Mbps effective | Memory Clock | 901 MHz 1802 Mbps effective |
| 450 MHz | GPU Clock | 825 MHz |
Render Config
| 20 | TMUs | 16 x2 |
| 16 | ROPs | 16 x2 |
Board Design
| 198 mm 7.8 inches | Length | 267 mm 10.5 inches |
| 49 W | Thermal design power (TDP) | 165 W |
| 200 W | Suggested PSU | 450 W |
| 2x DVI 1x S-Video | Display Connectors | 2x DVI 1x S-Video |
| 1x 6-pin | Power Connectors | 1x 6-pin + 1x 8-pin |
| P455 | Board Number | B400 |
API support
| 9.0c (9_3) | DirectX | 10.1 (10_1) |
| 2.1 | OpenGL | 3.3 (full) 4.0 (partial) |
| N/A | OpenCL | N/A |
| N/A | Vulkan | N/A |
| 3.0 | Shader Model | 4.1 |