Product Compare
AMD Radeon HD 6970 X2 vs AMD Radeon HD 6850 X2
| GPU | GPU | |
|---|---|---|
| Graphics Card | ||
| Release Date | Unknown | Sep 2011 |
| Generation | Northern Islands | Northern Islands |
| Type | Desktop | Desktop |
| Bus Interface | PCIe 2.0 x16 | PCIe 2.0 x16 |
| Clock Speeds | ||
| Memory Clock | 1375 MHz | 1050 MHz |
| Memory | ||
| Memory Size | 2GB | 2GB |
| Memory Type | GDDR5 | GDDR5 |
| Memory Bus | 256bit | 256bit |
| Bandwidth | 176.0GB/s | 134.4GB/s |
| Render Config | ||
| Compute Units | 24 | 12 |
| Shading Units | 1536 | 960 |
| TMUs | 96 | 48 |
| ROPs | 32 | 32 |
| L1 Cache | 8 KB (per CU) | 8 KB (per CU) |
| L2 Cache | 512 KB | 512 KB |
| Theoretical Performance | ||
| Pixel Rate | 28.16 GPixel/s | 25.60 GPixel/s |
| Texture Rate | 84.48 GTexel/s | 38.40 GTexel/s |
| FP32 (float) | 2.703 TFLOPS | 1.536 TFLOPS |
| Graphics Processor | ||
| GPU Name | Antilles | Barts |
| GPU Variant | Antilles XT(215-0807027) | Barts PRO(215-0798006) |
| Architecture | TeraScale 3 | TeraScale 2 |
| Foundry | TSMC | TSMC |
| Process Size | 40 nm | 40 nm |
| Transistors | 2.64 billion | 1.7 billion |
| Die Size | 389 mm² | 255 mm² |
| Board Design | ||
| TDP | 375W | 254W |
| Suggested PSU | 750 W | 600 W |
| Outputs | 2x DVI1x HDMI 1.4a2x mini-DisplayPort 1.2 | 2x DVI1x HDMI 1.3a1x DisplayPort 1.1 |
| Power Connectors | 3x 8-pin | 2x 8-pin |
| Graphics Features | ||
| DirectX | 11.2 (11_0) | 11.2 (11_0) |
| OpenGL | 4.4 | 4.4 |
| OpenCL | 1.2 | 1.2 |
| Vulkan | N/A | N/A |
| Shader Model | 5.0 | 5.0 |