ATI Mobility Radeon HD 4870 vs AMD Radeon R7 250
What is the difference between ATI Mobility Radeon HD 4870 and AMD Radeon R7 250. Find out which graphics card has better performance.
Graphics Processor (GPU)
| M98 | GPU Name | Oland |
| M98 XT (216-0732023) | Model number | Oland XT (215-0837000) |
| TeraScale | Architecture | GCN 1.0 |
| TSMC | Foundry | TSMC |
| 55 nm | Process Size | 28 nm |
| 956 million | Transistors | 950 million |
| 256 mm² | Die Size | 77 mm² |
Graphics Card
| Jan 9th, 2009 | Release Date | Oct 8th, 2013 |
| M9x (Mobility HD 4800) | Family | Volcanic Islands (R7 200) |
| End-of-life | Production | End-of-life |
| M8x | Predecessor | Sea Islands |
| PCIe 2.0 x16 | Bus Interface | PCIe 3.0 x8 |
Memory
| 512 MB | Memory Size | 1024 MB |
| GDDR3 | Memory Type | GDDR5 |
| 256 bit | Memory Bus | 128 bit |
| 56.83 GB/s | Bandwidth | 73.60 GB/s |
Performance
| 8.800 GPixel/s | Pixel fillrate | 8.400 GPixel/s |
| 22.00 GTexel/s | Texture fillrate | 25.20 GTexel/s |
| 880.0 GFLOPS | FP32 (float) performance | 806.4 GFLOPS |
| 176.0 GFLOPS (1:5) | FP64 (double) performance | 50.40 GFLOPS (1:16) |
Clock Speeds
| 888 MHz 1776 Mbps effective | Memory Clock | 1150 MHz 4.6 Gbps effective |
Render Config
| 800 | Shading Units | 384 |
| 40 | TMUs | 24 |
| 16 | ROPs | 8 |
| 10 | Compute Units | 6 |
| 16 KB (per CU) | L1 Cache | 16 KB (per CU) |
| 256 KB | L2 Cache | 256 KB |
Board Design
| unknown | Thermal design power (TDP) | 65 W |
| No outputs | Display Connectors | 1x DVI 1x HDMI 1x VGA |
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 |