AMD Radeon HD 6850 X2 vs ATI Radeon 3100 Mobile IGP
Graphics Processor
| GPU model | Barts | RS780 |
|---|---|---|
| GPU variant | Barts PRO (215-0798006) | RS780M |
| Architecture | TeraScale 2 | TeraScale |
| Foundry | TSMC | — |
| Manufacturing process | 40 nm | 65 nm |
| Number of transistors | 1,700 million | 180 million |
| Die size | 255 mm² | 85 mm² |
Graphics Card
| Release date | Sep 19th, 2011 | — |
|---|---|---|
| Generation | Northern Islands | — |
| Production | End-of-life | — |
| Interface | PCIe 2.0 x16 | — |
| Reviews | 105 in our database | — |
| Predecessor | Evergreen | — |
| Successor | Southern Islands | — |
Clocks
| GPU clock | 800 MHz | 350 MHz |
|---|---|---|
| Memory clock | 1050 MHz 4.2 Gbps effective | System Shared |
Memory Configuration
| Memory size | 2 GB | System Shared |
|---|---|---|
| Memory type | GDDR5 | System Shared |
| Memory bus width | 256 bit | System Shared |
| Bandwidth | 134.4 GB/s | System Dependent |
Render Configuration
| Shading units | 960 | 40 |
|---|---|---|
| TMUs | 48 | 4 |
| ROPs | 32 | 4 |
| Compute units | 12 | 2 |
| Cache L1 | 8 KB (per CU) | — |
| Cache L2 | 512 KB | — |
Performance
| Pixel rate | 25.60 GPixel/s | 1.400 GPixel/s |
|---|---|---|
| Texture rate | 38.40 GTexel/s | 1.400 GTexel/s |
| FP32 (float) performance | 1.536 TFLOPS | 28.00 GFLOPS |
Dimensions & Outputs
| Slot width | Dual-slot | IGP |
|---|---|---|
| TDP | 254 W | unknown |
| Suggested PSU | 600 W | — |
| Outputs | 2x DVI1x HDMI1x DisplayPort | No outputs |
| Power connectors | 2x 8-pin | None |
API Support & Features
| DirectX | 11.2 (11_0) | 10.0 (10_0) |
|---|---|---|
| OpenGL | 4.4 | 3.3 |
| OpenCL | 1.2 | 1.0 |
| Vulkan | — | — |
| Shader model | 5.0 | 4.1 |
Other Features
Integrated Graphics
| Release date | — | Aug 15th, 2008 |
|---|---|---|
| Generation | — | Radeon IGP (Mobility HD 3000) |
| Production | — | End-of-life |
| Interface | — | PCIe 1.0 x16 |
