ATI Mobility Radeon HD 4870 vs ATI Radeon HD 4860
What is the difference between ATI Mobility Radeon HD 4870 and ATI Radeon HD 4860. Find out which graphics card has better performance.
Graphics Processor (GPU)
| M98 | GPU Name | RV790 |
| M98 XT (216-0732023) | Model number | RV790 GT |
| TeraScale | Architecture | TeraScale |
| TSMC | Foundry | TSMC |
| 55 nm | Process Size | 55 nm |
| 956 million | Transistors | 959 million |
| 256 mm² | Die Size | 282 mm² |
Graphics Card
| Jan 9th, 2009 | Release Date | Sep 9th, 2009 |
| M9x (Mobility HD 4800) | Family | Radeon R700 (HD 4800) |
| End-of-life | Production | End-of-life |
| M8x | Predecessor | Radeon R600 |
| PCIe 2.0 x16 | Bus Interface | PCIe 2.0 x16 |
Memory
| 512 MB | Memory Size | 512 MB |
| GDDR3 | Memory Type | GDDR5 |
| 256 bit | Memory Bus | 256 bit |
| 56.83 GB/s | Bandwidth | 96.00 GB/s |
Performance
| 8.800 GPixel/s | Pixel fillrate | 11.20 GPixel/s |
| 22.00 GTexel/s | Texture fillrate | 22.40 GTexel/s |
| 880.0 GFLOPS | FP32 (float) performance | 896.0 GFLOPS |
| 176.0 GFLOPS (1:5) | FP64 (double) performance | 179.2 GFLOPS (1:5) |
Clock Speeds
| 888 MHz 1776 Mbps effective | Memory Clock | 750 MHz 3 Gbps effective |
| 550 MHz | GPU Clock | 700 MHz |
Render Config
| 800 | Shading Units | 640 |
| 40 | TMUs | 32 |
| 16 | ROPs | 16 |
| 10 | Compute Units | 8 |
| 16 KB (per CU) | L1 Cache | 16 KB (per CU) |
| 256 KB | L2 Cache | 256 KB |
Board Design
| unknown | Thermal design power (TDP) | 130 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 |
| 1.1 | OpenCL | 1.1 |
| N/A | Vulkan | N/A |
| 4.1 | Shader Model | 4.1 |