NVIDIA GeForce 820M vs ATI Radeon X1900 XT
What is the difference between NVIDIA GeForce 820M and ATI Radeon X1900 XT. Find out which graphics card has better performance.
Graphics Processor (GPU)
| GF117 | GPU Name | R580 |
| N15V-GM-B-A2 | Model number | R580 XT (215BADBKA22FG) |
| Fermi 2.0 | Architecture | R500 |
| TSMC | Foundry | TSMC |
| 28 nm | Process Size | 90 nm |
| 585 million | Transistors | 384 million |
| 116 mm² | Die Size | 352 mm² |
Graphics Card
| Nov 27th, 2013 | Release Date | 2006 |
| GeForce 800M | Family | Radeon R500 PCIe (X1900) |
| End-of-life | Production | End-of-life |
| GeForce 700M | Predecessor | Radeon R400 PCIe |
| PCIe 2.0 x16 | Bus Interface | PCIe 1.0 x16 |
Memory
| 1024 MB | Memory Size | 256 MB |
| DDR3 | Memory Type | GDDR3 |
| 64 bit | Memory Bus | 256 bit |
| 14.40 GB/s | Bandwidth | 46.40 GB/s |
Performance
| 2.500 GPixel/s | Pixel fillrate | 10.00 GPixel/s |
| 10.00 GTexel/s | Texture fillrate | 10.00 GTexel/s |
Clock Speeds
| 900 MHz 1800 Mbps effective | Memory Clock | 725 MHz 1450 Mbps effective |
| 625 MHz | GPU Clock | 625 MHz |
Render Config
| 16 | TMUs | 16 |
| 8 | ROPs | 16 |
Board Design
| 15 W | Thermal design power (TDP) | 100 W |
| No outputs | Display Connectors | 2x DVI 1x S-Video |
API support
| 12 (11_0) | DirectX | 9.0c (9_3) |
| 4.6 | OpenGL | 2.1 (full) 3.0 (partial) |
| 1.1 | OpenCL | N/A |
| N/A | Vulkan | N/A |
| 5.1 | Shader Model | 3.0 |