ATI Radeon HD 4860 vs AMD Radeon R6 M255DX
What is the difference between ATI Radeon HD 4860 and AMD Radeon R6 M255DX. Find out which graphics card has better performance.
Graphics Processor (GPU)
| RV790 | GPU Name | Jet |
| RV790 GT | Model number | Jet PRO (216-0568010) |
| TeraScale | Architecture | GCN 1.0 |
| TSMC | Foundry | TSMC |
| 55 nm | Process Size | 28 nm |
| 959 million | Transistors | 690 million |
| 282 mm² | Die Size | 56 mm² |
Graphics Card
| Sep 9th, 2009 | Release Date | Jan 7th, 2014 |
| Radeon R700 (HD 4800) | Family | Crystal System (Rx M200) |
| End-of-life | Production | End-of-life |
| PCIe 2.0 x16 | Bus Interface | IGP |
Memory
| 512 MB | Memory Size | System Shared |
| GDDR5 | Memory Type | System Shared |
| 256 bit | Memory Bus | System Shared |
| 96.00 GB/s | Bandwidth | System Dependent |
Performance
| 11.20 GPixel/s | Pixel fillrate | 6.840 GPixel/s |
| 22.40 GTexel/s | Texture fillrate | 17.10 GTexel/s |
| 896.0 GFLOPS | FP32 (float) performance | 547.2 GFLOPS |
| 179.2 GFLOPS (1:5) | FP64 (double) performance | 34.20 GFLOPS (1:16) |
Clock Speeds
| 750 MHz 3 Gbps effective | Memory Clock | System Shared |
Render Config
| 640 | Shading Units | 320 |
| 32 | TMUs | 20 |
| 16 | ROPs | 8 |
| 8 | Compute Units | 5 |
| 16 KB (per CU) | L1 Cache | 16 KB (per CU) |
| 256 KB | L2 Cache | 128 KB |
Board Design
| Dual-slot | Slot Width | IGP |
| 130 W | Thermal design power (TDP) | unknown |
| 2x DVI 1x S-Video | Display Connectors | No outputs |
API support
| 10.1 (10_1) | DirectX | 12 (11_1) |
| 3.3 | OpenGL | 4.6 |
| 1.1 | OpenCL | 1.2 |
| N/A | Vulkan | 1.2 |
| 4.1 | Shader Model | 5.1 |