ATI Radeon X850 PRO vs ATI Radeon HD 4580
What is the difference between ATI Radeon X850 PRO and ATI Radeon HD 4580. Find out which graphics card has better performance.
Graphics Processor (GPU)
| R480 | GPU Name | RV635 |
| R480 PRO (215RBPAGA11F) | Model number | RV635 PRO (215-0682008) |
| R400 | Architecture | TeraScale |
| TSMC | Foundry | TSMC |
| 130 nm | Process Size | 55 nm |
| 160 million | Transistors | 378 million |
| 297 mm² | Die Size | 135 mm² |
Graphics Card
| Dec 1st, 2004 | Release Date | Nov 20th, 2011 |
| Radeon R400 PCIe (X850) | Family | Radeon R700 (HD 4500) |
| End-of-life | Production | End-of-life |
| Radeon R300 | Predecessor | Radeon R600 |
| PCIe 1.0 x16 | Bus Interface | PCIe 2.0 x16 |
Memory
| 256 MB | Memory Size | 512 MB |
| GDDR3 | Memory Type | GDDR3 |
| 256 bit | Memory Bus | 128 bit |
| 33.28 GB/s | Bandwidth | 22.18 GB/s |
Performance
| 6.084 GPixel/s | Pixel fillrate | 3.184 GPixel/s |
| 6.084 GTexel/s | Texture fillrate | 6.368 GTexel/s |
Clock Speeds
| 520 MHz 1040 Mbps effective | Memory Clock | 693 MHz 1386 Mbps effective |
| 507 MHz | GPU Clock | 796 MHz |
Render Config
| 12 | TMUs | 8 |
| 12 | ROPs | 4 |
Board Design
| Single-slot | Slot Width | Single-slot |
| unknown | Thermal design power (TDP) | 65 W |
| 200 W | Suggested PSU | 250 W |
| 1x DVI 1x VGA 1x S-Video | Display Connectors | 2x DVI 1x S-Video |
| 1x 6-pin | Power Connectors | None |
API support
| 9.0b (9_2) | DirectX | 10.1 (10_1) |
| 2.1 | OpenGL | 3.3 |
| N/A | OpenCL | N/A |
| N/A | Vulkan | N/A |