AMD Radeon HD 7550M vs AMD Radeon HD 7640G IGP
Graphics Processor
| GPU model | Thames | Devastator Lite |
|---|---|---|
| GPU variant | Thames LP | — |
| Architecture | TeraScale 2 | TeraScale 3 |
| Foundry | TSMC | TSMC |
| Manufacturing process | 40 nm | 32 nm |
| Number of transistors | 716 million | 1,303 million |
| Die size | 104 mm² | 246 mm² |
Mobile graphics
| Release date | Jan 7th, 2012 | — |
|---|---|---|
| Generation | London (HD 7500M) | — |
| Production | End-of-life | — |
| Interface | PCIe 2.0 x16 | — |
| Predecessor | Vancouver | — |
| Successor | Solar System | — |
Clocks
| Base clock | 450 MHz | 496 MHz |
|---|---|---|
| Boost clock | 550 MHz | 655 MHz |
| Memory clock | 900 MHz 1800 Mbps effective | System Shared |
Memory Configuration
| Memory size | 1024 MB | System Shared |
|---|---|---|
| Memory type | DDR3 | System Shared |
| Memory bus width | 64 bit | System Shared |
| Bandwidth | 14.40 GB/s | System Dependent |
Render Configuration
| Shading units | 400 | 256 |
|---|---|---|
| TMUs | 20 | 16 |
| ROPs | 8 | 8 |
| Compute units | 5 | 4 |
Performance
| Pixel rate | 4.400 GPixel/s | 5.240 GPixel/s |
|---|---|---|
| Texture rate | 11.00 GTexel/s | 10.48 GTexel/s |
| FP32 (float) performance | 440.0 GFLOPS | 335.4 GFLOPS |
Dimensions & Outputs
| TDP | 14 W | 35 W |
|---|---|---|
| Outputs | No outputs | No outputs |
| Slot width | — | IGP |
API Support & Features
| DirectX | 11.2 (11_0) | 11.2 (11_0) |
|---|---|---|
| OpenGL | 4.4 | 4.4 |
| OpenCL | 1.2 | 1.2 |
| Vulkan | — | — |
| Shader model | 5.0 | 5.0 |
Other Features
Integrated Graphics
| Release date | — | May 15th, 2012 |
|---|---|---|
| Generation | — | Trinity (HD 7000 Mobile) |
| Production | — | End-of-life |
| Interface | — | IGP |
| Predecessor | — | Sumo |
| Successor | — | Richland |
