AMD Radeon HD 8490 OEM vs ATI Radeon X1900 GT
What is the difference between AMD Radeon HD 8490 OEM and ATI Radeon X1900 GT. Find out which graphics card has better performance.
Graphics Processor (GPU)
| Caicos | GPU Name | R580 |
| Caicos XTX | Model number | R580 XL (215BAEBKA31FG) |
| TeraScale 2 | Architecture | R500 |
| TSMC | Foundry | TSMC |
| 40 nm | Process Size | 90 nm |
| 370 million | Transistors | 384 million |
| 67 mm² | Die Size | 352 mm² |
Graphics Card
| Jul 23rd, 2013 | Release Date | May 1st, 2006 |
| Sea Islands (HD 8400) | Family | Radeon R500 PCIe (X1900) |
| End-of-life | Production | End-of-life |
| Southern Islands | 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 | 38.40 GB/s |
Performance
| 3.500 GPixel/s | Pixel fillrate | 6.900 GPixel/s |
| 7.000 GTexel/s | Texture fillrate | 6.900 GTexel/s |
Clock Speeds
| 900 MHz 1800 Mbps effective | Memory Clock | 600 MHz 1200 Mbps effective |
| 875 MHz | GPU Clock | 575 MHz |
Render Config
| 8 | TMUs | 12 |
| 4 | ROPs | 12 |
Board Design
| Single-slot | Slot Width | Single-slot |
| 35 W | Thermal design power (TDP) | 75 W |
| 200 W | Suggested PSU | 250 W |
| 1x DVI 1x DisplayPort | Display Connectors | 2x DVI 1x S-Video |
| None | Power Connectors | 1x 6-pin |
| C369, C553 | Board Number | A520 |
API support
| 11.2 (11_0) | DirectX | 9.0c (9_3) |
| 4.4 | OpenGL | 2.1 (full) 3.0 (partial) |
| 1.2 | OpenCL | N/A |
| N/A | Vulkan | N/A |
| 5.0 | Shader Model | 3.0 |