NVIDIA GeForce GTX 660 Ti vs NVIDIA GeForce GTX 670
Graphics Processor
| GPU model | GK104 | GK104 |
|---|---|---|
| GPU variant | GK104-300-KD-A2 | GK104-325-A2 |
| Architecture | Kepler | Kepler |
| Foundry | TSMC | TSMC |
| Manufacturing process | 28 nm | 28 nm |
| Number of transistors | 3,540 million | 3,540 million |
| Die size | 294 mm² | 294 mm² |
Graphics Card
| Release date | Aug 16th, 2012 | May 10th, 2012 |
|---|---|---|
| Generation | GeForce 600 | GeForce 600 |
| Production | End-of-life | End-of-life |
| Launch price | 299 USD | 399 USD |
| Interface | PCIe 3.0 x16 | PCIe 3.0 x16 |
| Reviews | 83 in our database | 108 in our database |
| Predecessor | GeForce 500 | GeForce 500 |
| Successor | GeForce 700 | GeForce 700 |
Clocks
| Base clock | 915 MHz | 915 MHz |
|---|---|---|
| Boost clock | 980 MHz | 980 MHz |
| Memory clock | 1502 MHz 6 Gbps effective | 1502 MHz 6 Gbps effective |
Memory Configuration
| Memory size | 2 GB | 2 GB |
|---|---|---|
| Memory type | GDDR5 | GDDR5 |
| Memory bus width | 192 bit | 256 bit |
| Bandwidth | 144.2 GB/s | 192.3 GB/s |
Render Configuration
| Shading units | 1344 | 1344 |
|---|---|---|
| TMUs | 112 | 112 |
| ROPs | 24 | 32 |
| SMX count | 7 | 7 |
| Cache L1 | 16 KB (per SMX) | 16 KB (per SMX) |
| Cache L2 | 384 KB | 512 KB |
Performance
| Pixel rate | 27.44 GPixel/s | 27.44 GPixel/s |
|---|---|---|
| Texture rate | 109.8 GTexel/s | 109.8 GTexel/s |
| FP32 (float) performance | 2.634 TFLOPS | 2.634 TFLOPS |
| FP64 (double) performance | 109.8 GFLOPS (1:24) | 109.8 GFLOPS (1:24) |
Dimensions & Outputs
| Slot width | Dual-slot | Dual-slot |
|---|---|---|
| Length | 241 mm 9.5 inches | 241 mm 9.5 inches |
| TDP | 150 W | 170 W |
| Suggested PSU | 450 W | 450 W |
| Outputs | 2x DVI1x HDMI1x DisplayPort | 2x DVI1x HDMI1x DisplayPort |
| Power connectors | 2x 6-pin | 2x 6-pin |
| Board number | P2004 | P2004 |
| Width | — | 111 mm 4.4 inches |
| Height | — | 38 mm 1.5 inches |
API Support & Features
| DirectX | 12 (11_0) | 12 (11_0) |
|---|---|---|
| OpenGL | 4.6 | 4.6 |
| OpenCL | 3.0 | 3.0 |
| Vulkan | 1.1 | 1.1 |
| CUDA | 3.0 | 3.0 |
| Shader model | 5.1 | 5.1 |
