ATI Mobility Radeon HD 3870 vs Intel HD Graphics 5500
Graphics Processor
| GPU model | M88 | Broadwell GT2 |
|---|---|---|
| Architecture | TeraScale | Generation 8.0 |
| Foundry | TSMC | Intel |
| Manufacturing process | 55 nm | 14 nm |
| Number of transistors | 666 million | unknown |
| Die size | 192 mm² | unknown |
Mobile graphics
| Release date | Jun 4th, 2008 | — |
|---|---|---|
| Generation | M8x (Mobility HD 3800) | — |
| Production | End-of-life | — |
| Interface | PCIe 2.0 x16 | — |
| Reviews | 2 in our database | — |
| Predecessor | M7x | — |
| Successor | M9x | — |
Clocks
| GPU clock | 660 MHz | — |
|---|---|---|
| Memory clock | 850 MHz 1700 Mbps effective | System Shared |
| Base clock | — | 300 MHz |
| Boost clock | — | 850 MHz |
Memory Configuration
| Memory size | 512 MB | System Shared |
|---|---|---|
| Memory type | GDDR3 | System Shared |
| Memory bus width | 256 bit | System Shared |
| Bandwidth | 54.40 GB/s | System Dependent |
Render Configuration
| Shading units | 320 | 192 |
|---|---|---|
| TMUs | 16 | 24 |
| ROPs | 16 | 3 |
| Compute units | 4 | — |
| Cache L2 | 256 KB | — |
| Execution units | — | 24 |
Performance
| Pixel rate | 10.56 GPixel/s | 2.550 GPixel/s |
|---|---|---|
| Texture rate | 10.56 GTexel/s | 20.40 GTexel/s |
| FP32 (float) performance | 422.4 GFLOPS | 326.4 GFLOPS |
| FP64 (double) performance | 84.48 GFLOPS (1:5) | 81.60 GFLOPS (1:4) |
Dimensions & Outputs
| TDP | 55 W | 15 W |
|---|---|---|
| Outputs | No outputs | No outputs |
| Slot width | — | IGP |
API Support & Features
| DirectX | 10.1 (10_1) | 12 (11_1) |
|---|---|---|
| OpenGL | 3.3 | 4.4 |
| OpenCL | — | 3.0 |
| Vulkan | — | 1.0 |
| Shader model | 4.1 | 5.1 |
Other Features
Integrated Graphics
| Release date | — | Sep 5th, 2014 |
|---|---|---|
| Generation | — | HD Graphics-M (Broadwell) |
| Production | — | End-of-life |
| Interface | — | Ring Bus |
| Reviews | — | 1 in our database |
