AMD Radeon HD 6970 vs NVIDIA Tesla C2070
Graphics Processor
| GPU model | Cayman | GF100 |
|---|---|---|
| GPU variant | Cayman XT (215-0807007) | — |
| Architecture | TeraScale 3 | Fermi |
| Foundry | TSMC | TSMC |
| Manufacturing process | 40 nm | 40 nm |
| Number of transistors | 2,640 million | 3,100 million |
| Die size | 389 mm² | 529 mm² |
Graphics Card
| Release date | Dec 14th, 2010 | Jul 25th, 2011 |
|---|---|---|
| Generation | Northern Islands | Tesla |
| Production | End-of-life | End-of-life |
| Launch price | 369 USD | — |
| Interface | PCIe 2.0 x16 | PCIe 2.0 x16 |
| Reviews | 80 in our database | — |
| Predecessor | Evergreen | — |
| Successor | Southern Islands | — |
Clocks
| GPU clock | 880 MHz | 574 MHz |
|---|---|---|
| Memory clock | 1375 MHz 5.5 Gbps effective | 747 MHz 3 Gbps effective |
| Shader clock | — | 1147 MHz |
Memory Configuration
| Memory size | 2 GB | 6 GB |
|---|---|---|
| Memory type | GDDR5 | GDDR5 |
| Memory bus width | 256 bit | 384 bit |
| Bandwidth | 176.0 GB/s | 143.4 GB/s |
Render Configuration
| Shading units | 1536 | 448 |
|---|---|---|
| TMUs | 96 | 56 |
| ROPs | 32 | 48 |
| Compute units | 24 | — |
| Cache L1 | 8 KB (per CU) | 64 KB (per SM) |
| Cache L2 | 512 KB | 768 KB |
| SM count | — | 14 |
Performance
| Pixel rate | 28.16 GPixel/s | 16.07 GPixel/s |
|---|---|---|
| Texture rate | 84.48 GTexel/s | 32.14 GTexel/s |
| FP32 (float) performance | 2.703 TFLOPS | 1,028 GFLOPS |
| FP64 (double) performance | 675.8 GFLOPS (1:4) | 513.9 GFLOPS (1:2) |
Dimensions & Outputs
| Slot width | Dual-slot | Dual-slot |
|---|---|---|
| Length | 286 mm 11.3 inches | 248 mm 9.8 inches |
| Width | 126 mm 5 inches | — |
| Height | 42 mm 1.7 inches | — |
| TDP | 250 W | 238 W |
| Suggested PSU | 600 W | 550 W |
| Outputs | 2x DVI1x HDMI2x mini-DisplayPort | 1x DVI |
| Power connectors | 1x 6-pin + 1x 8-pin | 1x 8-pin |
| Board number | C200-47 | — |
API Support & Features
| DirectX | 11.2 (11_0) | 12 (11_0) |
|---|---|---|
| OpenGL | 4.4 | 4.6 |
| OpenCL | 1.2 | 1.1 |
| Vulkan | — | — |
| Shader model | 5.0 | 5.1 |
| CUDA | — | 2.0 |
