AMD Radeon HD 8690M vs AMD Radeon HD 8850M
Graphics Processor
| GPU model | Sun | Venus |
|---|---|---|
| GPU variant | Sun XT | Venus PRO |
| Architecture | GCN 1.0 | GCN 1.0 |
| Foundry | TSMC | TSMC |
| Manufacturing process | 28 nm | 28 nm |
| Number of transistors | 690 million | 1,500 million |
| Die size | 56 mm² | 123 mm² |
Mobile graphics
| Release date | Mar 1st, 2013 | Apr 1st, 2013 |
|---|---|---|
| Generation | Solar System (HD 8600M) | Solar System (HD 8800M) |
| Production | End-of-life | End-of-life |
| Interface | PCIe 3.0 x8 | PCIe 3.0 x16 |
| Predecessor | London | London |
| Successor | Crystal System | Crystal System |
Clocks
| Base clock | 775 MHz | 575 MHz |
|---|---|---|
| Boost clock | 825 MHz | 625 MHz |
| Memory clock | 1000 MHz 4 Gbps effective | 1000 MHz 2 Gbps effective |
Memory Configuration
| Memory size | 1024 MB | 2 GB |
|---|---|---|
| Memory type | GDDR5 | DDR3 |
| Memory bus width | 64 bit | 128 bit |
| Bandwidth | 32.00 GB/s | 32.00 GB/s |
Render Configuration
| Shading units | 320 | 640 |
|---|---|---|
| TMUs | 20 | 40 |
| ROPs | 8 | 16 |
| Compute units | 5 | 10 |
| Cache L1 | 16 KB (per CU) | 16 KB (per CU) |
| Cache L2 | 128 KB | 256 KB |
Performance
| Pixel rate | 6.600 GPixel/s | 10.00 GPixel/s |
|---|---|---|
| Texture rate | 16.50 GTexel/s | 25.00 GTexel/s |
| FP32 (float) performance | 528.0 GFLOPS | 800.0 GFLOPS |
| FP64 (double) performance | 33.00 GFLOPS (1:16) | 50.00 GFLOPS (1:16) |
Dimensions & Outputs
| TDP | unknown | unknown |
|---|---|---|
| Outputs | No outputs | No outputs |
API Support & Features
| DirectX | 12 (11_1) | 12 (11_1) |
|---|---|---|
| OpenGL | 4.6 | 4.6 |
| OpenCL | 1.2 | 1.2 |
| Vulkan | 1.2 | 1.2 |
| Shader model | 5.1 | 5.1 |
