AMD Radeon HD 6870 vs ATI Radeon HD 3200 Mobile IGP
Graphics Processor
| GPU model | Barts | RS780 |
|---|---|---|
| GPU variant | Barts XT (215-0798000) | 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 | Oct 21st, 2010 | — |
|---|---|---|
| Generation | Northern Islands | — |
| Production | End-of-life | — |
| Launch price | 239 USD | — |
| Interface | PCIe 2.0 x16 | — |
| Reviews | 170 in our database | — |
| Predecessor | Evergreen | — |
| Successor | Southern Islands | — |
Clocks
| GPU clock | 900 MHz | 380 MHz |
|---|---|---|
| Memory clock | 1050 MHz 4.2 Gbps effective | System Shared |
Memory Configuration
| Memory size | 1024 MB | 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 | 1120 | 40 |
|---|---|---|
| TMUs | 56 | 4 |
| ROPs | 32 | 4 |
| Compute units | 14 | 2 |
| Cache L1 | 8 KB (per CU) | — |
| Cache L2 | 512 KB | — |
Performance
| Pixel rate | 28.80 GPixel/s | 1.520 GPixel/s |
|---|---|---|
| Texture rate | 50.40 GTexel/s | 1.520 GTexel/s |
| FP32 (float) performance | 2.016 TFLOPS | 30.40 GFLOPS |
Dimensions & Outputs
| Slot width | Dual-slot | IGP |
|---|---|---|
| Length | 247 mm 9.7 inches | — |
| Width | 111 mm 4.4 inches | — |
| Height | 36 mm 1.4 inches | — |
| TDP | 151 W | unknown |
| Suggested PSU | 450 W | — |
| Outputs | 2x DVI1x HDMI2x mini-DisplayPort | No outputs |
| Power connectors | 2x 6-pin | None |
| Board number | C222 | — |
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 | — | Nov 1st, 2009 |
|---|---|---|
| Generation | — | Radeon IGP (Mobility HD 3000) |
| Production | — | End-of-life |
| Interface | — | PCIe 1.0 x16 |
