ATI Radeon HD 4570 Rebrand vs ATI Radeon HD 4580
What is the difference between ATI Radeon HD 4570 Rebrand and ATI Radeon HD 4580. Find out which graphics card has better performance.
Graphics Processor (GPU)
| RV635 | GPU Name | RV635 |
| RV635 PRO (215-0682008) | Model number | RV635 PRO (215-0682008) |
| TeraScale | Architecture | TeraScale |
| TSMC | Foundry | TSMC |
| 55 nm | Process Size | 55 nm |
| 378 million | Transistors | 378 million |
| 135 mm² | Die Size | 135 mm² |
Graphics Card
| Nov 22nd, 2009 | Release Date | Nov 20th, 2011 |
| Radeon R700 (HD 4500) | Family | Radeon R700 (HD 4500) |
| End-of-life | Production | End-of-life |
| Radeon R600 | Predecessor | Radeon R600 |
| PCIe 2.0 x16 | Bus Interface | PCIe 2.0 x16 |
Memory
| 1024 MB | Memory Size | 512 MB |
| DDR2 | Memory Type | GDDR3 |
| 128 bit | Memory Bus | 128 bit |
| 12.67 GB/s | Bandwidth | 22.18 GB/s |
Performance
| 3.184 GPixel/s | Pixel fillrate | 3.184 GPixel/s |
| 6.368 GTexel/s | Texture fillrate | 6.368 GTexel/s |
| 191.0 GFLOPS | FP32 (float) performance | 191.0 GFLOPS |
Clock Speeds
| 396 MHz 792 Mbps effective | Memory Clock | 693 MHz 1386 Mbps effective |
| 796 MHz | GPU Clock | 796 MHz |
Render Config
| 120 | Shading Units | 120 |
| 8 | TMUs | 8 |
| 4 | ROPs | 4 |
| 3 | Compute Units | 3 |
| 128 KB | L2 Cache | 128 KB |
Board Design
| Single-slot | Slot Width | Single-slot |
| 190 mm 7.5 inches | Length | 190 mm 7.5 inches |
| 65 W | Thermal design power (TDP) | 65 W |
| 250 W | Suggested PSU | 250 W |
| 2x DVI 1x S-Video | Display Connectors | 2x DVI 1x S-Video |
API support
| 10.1 (10_1) | DirectX | 10.1 (10_1) |
| 3.3 | OpenGL | 3.3 |
| N/A | OpenCL | N/A |
| N/A | Vulkan | N/A |
| 4.1 | Shader Model | 4.1 |