AMD Radeon E8860 vs AMD Radeon HD 8870M
Graphics Processor
| GPU model | Venus | Venus |
|---|---|---|
| GPU variant | Venus MCM | Venus XT |
| Architecture | GCN 1.0 | GCN 1.0 |
| Foundry | TSMC | TSMC |
| Manufacturing process | 28 nm | 28 nm |
| Number of transistors | 1,500 million | 1,500 million |
| Die size | 123 mm² | 123 mm² |
Mobile graphics
| Release date | Jan 25th, 2014 | Apr 1st, 2013 |
|---|---|---|
| Generation | Embedded (8000) | Solar System (HD 8800M) |
| Production | End-of-life | End-of-life |
| Interface | PCIe 3.0 x16 | PCIe 3.0 x16 |
| Predecessor | — | London |
| Successor | — | Crystal System |
Clocks
| Base clock | 575 MHz | 725 MHz |
|---|---|---|
| Boost clock | 625 MHz | 775 MHz |
| Memory clock | 1125 MHz 4.5 Gbps effective | 1125 MHz 4.5 Gbps effective |
Memory Configuration
| Memory size | 2 GB | 2 GB |
|---|---|---|
| Memory type | GDDR5 | GDDR5 |
| Memory bus width | 128 bit | 128 bit |
| Bandwidth | 72.00 GB/s | 72.00 GB/s |
Render Configuration
| Shading units | 640 | 640 |
|---|---|---|
| TMUs | 40 | 40 |
| ROPs | 16 | 16 |
| Compute units | 10 | 10 |
| Cache L1 | 16 KB (per CU) | 16 KB (per CU) |
| Cache L2 | 256 KB | 256 KB |
Performance
| Pixel rate | 10.00 GPixel/s | 12.40 GPixel/s |
|---|---|---|
| Texture rate | 25.00 GTexel/s | 31.00 GTexel/s |
| FP32 (float) performance | 800.0 GFLOPS | 992.0 GFLOPS |
| FP64 (double) performance | 50.00 GFLOPS (1:16) | 62.00 GFLOPS (1:16) |
Dimensions & Outputs
| Slot width | Single-slot | — |
|---|---|---|
| TDP | 37 W | unknown |
| Outputs | 1x VGA | No outputs |
| Power connectors | 1x 6-pin + 1x 8-pin | — |
| Board number | C715-37 | — |
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 |
