AMD Radeon R4 Mobile Graphics vs ATI Radeon HD 4580
What is the difference between AMD Radeon R4 Mobile Graphics and ATI Radeon HD 4580. Find out which graphics card has better performance.
Graphics Processor (GPU)
| Stoney | GPU Name | RV635 |
| GCN 3.0 | Architecture | TeraScale |
| GlobalFoundries | Foundry | TSMC |
| 28 nm | Process Size | 55 nm |
| 1,200 million | Transistors | 378 million |
| 125 mm² | Die Size | 135 mm² |
Graphics Card
| Jun 1st, 2016 | Release Date | Nov 20th, 2011 |
| Stoney Ridge (Rx 400 Mobile) | Family | Radeon R700 (HD 4500) |
| Active | Production | End-of-life |
| Carrizo | Predecessor | Radeon R600 |
| IGP | Bus Interface | PCIe 2.0 x16 |
Memory
| System Shared | Memory Size | 512 MB |
| System Shared | Memory Type | GDDR3 |
| System Shared | Memory Bus | 128 bit |
| System Dependent | Bandwidth | 22.18 GB/s |
Performance
| 5.240 GPixel/s | Pixel fillrate | 3.184 GPixel/s |
| 7.860 GTexel/s | Texture fillrate | 6.368 GTexel/s |
| 251.5 GFLOPS | FP32 (float) performance | 191.0 GFLOPS |
Clock Speeds
| System Shared | Memory Clock | 693 MHz 1386 Mbps effective |
Render Config
| 192 | Shading Units | 120 |
| 12 | TMUs | 8 |
| 8 | ROPs | 4 |
| 3 | Compute Units | 3 |
Board Design
| IGP | Slot Width | Single-slot |
| 15 W | Thermal design power (TDP) | 65 W |
| No outputs | Display Connectors | 2x DVI 1x S-Video |
API support
| 12 (12_0) | DirectX | 10.1 (10_1) |
| 4.6 | OpenGL | 3.3 |
| 2.0 | OpenCL | N/A |
| 1.2 | Vulkan | N/A |
| 6.3 | Shader Model | 4.1 |