AMD Radeon HD 7660G IGP vs AMD Radeon HD 8670M
Graphics Processor
| GPU model | Devastator | Mars |
|---|---|---|
| Architecture | TeraScale 3 | GCN 1.0 |
| Foundry | TSMC | TSMC |
| Manufacturing process | 32 nm | 28 nm |
| Number of transistors | 1,303 million | 950 million |
| Die size | 246 mm² | 77 mm² |
| GPU variant | — | Mars XT |
Integrated Graphics
| Release date | May 15th, 2012 | — |
|---|---|---|
| Generation | Trinity (HD 7000 Mobile) | — |
| Production | End-of-life | — |
| Interface | IGP | — |
| Predecessor | Sumo | — |
| Successor | Richland | — |
Clocks
| GPU clock | 686 MHz | — |
|---|---|---|
| Memory clock | System Shared | 900 MHz 1800 Mbps effective |
| Base clock | — | 775 MHz |
| Boost clock | — | 825 MHz |
Memory Configuration
| Memory size | System Shared | 1024 MB |
|---|---|---|
| Memory type | System Shared | DDR3 |
| Memory bus width | System Shared | 64 bit |
| Bandwidth | System Dependent | 14.40 GB/s |
Render Configuration
| Shading units | 384 | 384 |
|---|---|---|
| TMUs | 24 | 24 |
| ROPs | 8 | 8 |
| Compute units | 6 | 6 |
| Cache L1 | — | 16 KB (per CU) |
| Cache L2 | — | 128 KB |
Performance
| Pixel rate | 5.488 GPixel/s | 6.600 GPixel/s |
|---|---|---|
| Texture rate | 16.46 GTexel/s | 19.80 GTexel/s |
| FP32 (float) performance | 526.8 GFLOPS | 633.6 GFLOPS |
Dimensions & Outputs
| Slot width | IGP | — |
|---|---|---|
| TDP | 35 W | unknown |
| Outputs | No outputs | No outputs |
API Support & Features
| DirectX | 11.2 (11_0) | 12 (11_1) |
|---|---|---|
| OpenGL | 4.4 | 4.6 |
| OpenCL | 1.2 | 1.2 |
| Vulkan | — | 1.2 |
| Shader model | 5.0 | 5.1 |
Other Features
Mobile graphics
| Release date | — | Mar 1st, 2013 |
|---|---|---|
| Generation | — | Solar System (HD 8600M) |
| Production | — | End-of-life |
| Interface | — | PCIe 3.0 x8 |
| Predecessor | — | London |
| Successor | — | Crystal System |
