ATI Mobility Radeon HD 3870 vs ATI Radeon HD 4730 OEM
What is the difference between ATI Mobility Radeon HD 3870 and ATI Radeon HD 4730 OEM. Find out which graphics card has better performance.
Graphics Processor (GPU)
| M88 | GPU Name | RV670 |
| TeraScale | Architecture | TeraScale |
| TSMC | Foundry | TSMC |
| 55 nm | Process Size | 55 nm |
| 666 million | Transistors | 666 million |
| 192 mm² | Die Size | 192 mm² |
Graphics Card
| Jun 4th, 2008 | Release Date | Dec 26th, 2008 |
| M8x (Mobility HD 3800) | Family | Radeon R700 (HD 4700) |
| End-of-life | Production | End-of-life |
| M7x | Predecessor | Radeon R600 |
| PCIe 2.0 x16 | Bus Interface | PCIe 2.0 x16 |
Memory
| 512 MB | Memory Size | 1024 MB |
| GDDR3 | Memory Type | DDR2 |
| 256 bit | Memory Bus | 256 bit |
| 54.40 GB/s | Bandwidth | 25.34 GB/s |
Performance
| 10.56 GPixel/s | Pixel fillrate | 10.70 GPixel/s |
| 10.56 GTexel/s | Texture fillrate | 10.70 GTexel/s |
| 422.4 GFLOPS | FP32 (float) performance | 428.2 GFLOPS |
| 84.48 GFLOPS (1:5) | FP64 (double) performance | 85.63 GFLOPS (1:5) |
Clock Speeds
| 850 MHz 1700 Mbps effective | Memory Clock | 396 MHz 792 Mbps effective |
| 660 MHz | GPU Clock | 669 MHz |
Render Config
| 320 | Shading Units | 320 |
| 16 | TMUs | 16 |
| 16 | ROPs | 16 |
| 4 | Compute Units | 4 |
| 256 KB | L2 Cache | 256 KB |
Board Design
| 55 W | Thermal design power (TDP) | 110 W |
| No outputs | Display Connectors | 2x DVI 1x S-Video |
API support
| 10.1 (10_1) | DirectX | 10.1 (10_1) |
| 3.3 | OpenGL | 3.3 (full) 4.0 (partial) |
| N/A | OpenCL | N/A |
| N/A | Vulkan | N/A |
| 4.1 | Shader Model | 4.1 |