NVIDIA GeForce GTX 660 vs NVIDIA GeForce GTX 750 Ti OEM
Graphics Processor
| GPU model | GK106 | GK106 |
|---|---|---|
| GPU variant | GK106-400-A1 | — |
| Architecture | Kepler | Kepler |
| Foundry | TSMC | TSMC |
| Manufacturing process | 28 nm | 28 nm |
| Number of transistors | 2,540 million | 2,540 million |
| Die size | 221 mm² | 221 mm² |
Graphics Card
| Release date | Sep 6th, 2012 | Unknown |
|---|---|---|
| Generation | GeForce 600 | GeForce 700 |
| Production | End-of-life | End-of-life |
| Launch price | 229 USD | — |
| Interface | PCIe 3.0 x16 | PCIe 3.0 x16 |
| Reviews | 77 in our database | 69 in our database |
| Predecessor | GeForce 500 | GeForce 600 |
| Successor | GeForce 700 | GeForce 900 |
Clocks
| Base clock | 980 MHz | 1033 MHz |
|---|---|---|
| Boost clock | 1032 MHz | 1098 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 | 960 | 960 |
|---|---|---|
| TMUs | 80 | 80 |
| ROPs | 24 | 32 |
| SMX count | 5 | 5 |
| Cache L1 | 16 KB (per SMX) | 16 KB (per SMX) |
| Cache L2 | 384 KB | 512 KB |
Performance
| Pixel rate | 20.64 GPixel/s | 21.96 GPixel/s |
|---|---|---|
| Texture rate | 82.56 GTexel/s | 87.84 GTexel/s |
| FP32 (float) performance | 1.981 TFLOPS | 2.108 TFLOPS |
| FP64 (double) performance | 82.56 GFLOPS (1:24) | 87.84 GFLOPS (1:24) |
Dimensions & Outputs
| Slot width | Dual-slot | Dual-slot |
|---|---|---|
| Length | 241 mm 9.5 inches | — |
| TDP | 140 W | 150 W |
| Suggested PSU | 300 W | 450 W |
| Outputs | 2x DVI1x HDMI1x DisplayPort | No outputs |
| Power connectors | 1x 6-pin | — |
| Board number | P2030 | — |
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 |
