AMD Radeon HD 8750M vs ATI Radeon HD 4855
What is the difference between AMD Radeon HD 8750M and ATI Radeon HD 4855. Find out which graphics card has better performance.
Graphics Processor (GPU)
| Mars | GPU Name | RV770 |
| Mars PRO (216-0842000) | Model number | RV770 PRO (215-0669065) |
| GCN 1.0 | Architecture | TeraScale |
| TSMC | Foundry | TSMC |
| 28 nm | Process Size | 55 nm |
| 950 million | Transistors | 956 million |
| 77 mm² | Die Size | 256 mm² |
Graphics Card
| Feb 26th, 2013 | Release Date | Jan 3rd, 2010 |
| Solar System (HD 8700M) | Family | Radeon R700 (HD 4800) |
| End-of-life | Production | End-of-life |
| London | Predecessor | Radeon R600 |
| PCIe 3.0 x8 | Bus Interface | PCIe 2.0 x16 |
Memory
| 1024 MB | Memory Size | 512 MB |
| GDDR5 | Memory Type | GDDR5 |
| 128 bit | Memory Bus | 256 bit |
| 64.00 GB/s | Bandwidth | 115.2 GB/s |
Performance
| 6.200 GPixel/s | Pixel fillrate | 9.200 GPixel/s |
| 18.60 GTexel/s | Texture fillrate | 18.40 GTexel/s |
| 595.2 GFLOPS | FP32 (float) performance | 736.0 GFLOPS |
| 37.20 GFLOPS (1:16) | FP64 (double) performance | 147.2 GFLOPS (1:5) |
Clock Speeds
| 1000 MHz 4 Gbps effective | Memory Clock | 900 MHz 3.6 Gbps effective |
Render Config
| 384 | Shading Units | 640 |
| 24 | TMUs | 32 |
| 8 | ROPs | 16 |
| 6 | 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) | 110 W |
| No outputs | Display Connectors | 1x DVI 1x HDMI 1x VGA |
API support
| 12 (11_1) | DirectX | 10.1 (10_1) |
| 4.6 | OpenGL | 3.3 |
| 1.2 | OpenCL | 1.1 |
| 1.2 | Vulkan | N/A |
| 5.1 | Shader Model | 4.1 |