AMD Radeon HD 6670 vs NVIDIA GRID K140Q
Graphics Processor
| GPU model | Turks | GK107 |
|---|---|---|
| GPU variant | Turks XT (215-0803000) | — |
| Architecture | TeraScale 2 | Kepler |
| Foundry | TSMC | TSMC |
| Manufacturing process | 40 nm | 28 nm |
| Number of transistors | 716 million | 1,270 million |
| Die size | 118 mm² | 118 mm² |
Graphics Card
| Release date | Apr 19th, 2011 | Jun 28th, 2013 |
|---|---|---|
| Generation | Northern Islands | GRID |
| Production | End-of-life | End-of-life |
| Launch price | 99 USD | 125 USD |
| Interface | PCIe 2.0 x16 | PCIe 3.0 x16 |
| Reviews | 35 in our database | — |
| Predecessor | Evergreen | — |
| Successor | Southern Islands | — |
Clocks
| GPU clock | 800 MHz | 850 MHz |
|---|---|---|
| Memory clock | 1000 MHz 4 Gbps effective | 891 MHz 1782 Mbps effective |
Memory Configuration
| Memory size | 1024 MB | 1024 MB |
|---|---|---|
| Memory type | GDDR5 | DDR3 |
| Memory bus width | 128 bit | 128 bit |
| Bandwidth | 64.00 GB/s | 28.51 GB/s |
Render Configuration
| Shading units | 480 | 192 |
|---|---|---|
| TMUs | 24 | 16 |
| ROPs | 8 | 16 |
| Compute units | 6 | — |
| Cache L1 | 8 KB (per CU) | 16 KB (per SMX) |
| Cache L2 | 256 KB | 256 KB |
| SMX count | — | 1 |
Performance
| Pixel rate | 6.400 GPixel/s | 3.400 GPixel/s |
|---|---|---|
| Texture rate | 19.20 GTexel/s | 13.60 GTexel/s |
| FP32 (float) performance | 768.0 GFLOPS | 326.4 GFLOPS |
| FP64 (double) performance | — | 13.60 GFLOPS (1:24) |
Dimensions & Outputs
| Slot width | Single-slot | IGP |
|---|---|---|
| Length | 168 mm 6.6 inches | — |
| TDP | 66 W | 130 W |
| Suggested PSU | 250 W | 300 W |
| Outputs | 1x DVI1x HDMI1x VGA | No outputs |
| Power connectors | None | — |
| Board number | C334 | — |
API Support & Features
| DirectX | 11.2 (11_0) | 12 (11_0) |
|---|---|---|
| OpenGL | 4.4 | 4.6 |
| OpenCL | 1.2 | 3.0 |
| Vulkan | — | 1.1 |
| Shader model | 5.0 | 5.1 |
| CUDA | — | 3.0 |
