AMD Radeon HD 6670 vs NVIDIA GeForce GTX 670
Graphics Processor
| GPU model | Turks | GK104 |
|---|---|---|
| GPU variant | Turks XT (215-0803000) | GK104-325-A2 |
| Architecture | TeraScale 2 | Kepler |
| Foundry | TSMC | TSMC |
| Manufacturing process | 40 nm | 28 nm |
| Number of transistors | 716 million | 3,540 million |
| Die size | 118 mm² | 294 mm² |
Graphics Card
| Release date | Apr 19th, 2011 | May 10th, 2012 |
|---|---|---|
| Generation | Northern Islands | GeForce 600 |
| Production | End-of-life | End-of-life |
| Launch price | 99 USD | 399 USD |
| Interface | PCIe 2.0 x16 | PCIe 3.0 x16 |
| Reviews | 35 in our database | 108 in our database |
| Predecessor | Evergreen | GeForce 500 |
| Successor | Southern Islands | GeForce 700 |
Clocks
| GPU clock | 800 MHz | — |
|---|---|---|
| Memory clock | 1000 MHz 4 Gbps effective | 1502 MHz 6 Gbps effective |
| Base clock | — | 915 MHz |
| Boost clock | — | 980 MHz |
Memory Configuration
| Memory size | 1024 MB | 2 GB |
|---|---|---|
| Memory type | GDDR5 | GDDR5 |
| Memory bus width | 128 bit | 256 bit |
| Bandwidth | 64.00 GB/s | 192.3 GB/s |
Render Configuration
| Shading units | 480 | 1344 |
|---|---|---|
| TMUs | 24 | 112 |
| ROPs | 8 | 32 |
| Compute units | 6 | — |
| Cache L1 | 8 KB (per CU) | 16 KB (per SMX) |
| Cache L2 | 256 KB | 512 KB |
| SMX count | — | 7 |
Performance
| Pixel rate | 6.400 GPixel/s | 27.44 GPixel/s |
|---|---|---|
| Texture rate | 19.20 GTexel/s | 109.8 GTexel/s |
| FP32 (float) performance | 768.0 GFLOPS | 2.634 TFLOPS |
| FP64 (double) performance | — | 109.8 GFLOPS (1:24) |
Dimensions & Outputs
| Slot width | Single-slot | Dual-slot |
|---|---|---|
| Length | 168 mm 6.6 inches | 241 mm 9.5 inches |
| TDP | 66 W | 170 W |
| Suggested PSU | 250 W | 450 W |
| Outputs | 1x DVI1x HDMI1x VGA | 2x DVI1x HDMI1x DisplayPort |
| Power connectors | None | 2x 6-pin |
| Board number | C334 | P2004 |
| Width | — | 111 mm 4.4 inches |
| Height | — | 38 mm 1.5 inches |
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 |
