NVIDIA GeForce GTX 650 Ti vs NVIDIA GeForce GTX 660
Graphics Processor
| GPU model | GK106 | GK106 |
|---|---|---|
| GPU variant | GK106-220-A1 | 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 | Oct 9th, 2012 | Sep 6th, 2012 |
|---|---|---|
| Generation | GeForce 600 | GeForce 600 |
| Production | End-of-life | End-of-life |
| Launch price | 149 USD | 229 USD |
| Interface | PCIe 3.0 x16 | PCIe 3.0 x16 |
| Reviews | 62 in our database | 77 in our database |
| Predecessor | GeForce 500 | GeForce 500 |
| Successor | GeForce 700 | GeForce 700 |
Clocks
| GPU clock | 928 MHz | — |
|---|---|---|
| Memory clock | 1350 MHz 5.4 Gbps effective | 1502 MHz 6 Gbps effective |
| Base clock | — | 980 MHz |
| Boost clock | — | 1032 MHz |
Memory Configuration
| Memory size | 1024 MB | 2 GB |
|---|---|---|
| Memory type | GDDR5 | GDDR5 |
| Memory bus width | 128 bit | 192 bit |
| Bandwidth | 86.40 GB/s | 144.2 GB/s |
Render Configuration
| Shading units | 768 | 960 |
|---|---|---|
| TMUs | 64 | 80 |
| ROPs | 16 | 24 |
| SMX count | 4 | 5 |
| Cache L1 | 16 KB (per SMX) | 16 KB (per SMX) |
| Cache L2 | 256 KB | 384 KB |
Performance
| Pixel rate | 14.85 GPixel/s | 20.64 GPixel/s |
|---|---|---|
| Texture rate | 59.39 GTexel/s | 82.56 GTexel/s |
| FP32 (float) performance | 1,425 GFLOPS | 1.981 TFLOPS |
| FP64 (double) performance | 59.39 GFLOPS (1:24) | 82.56 GFLOPS (1:24) |
Dimensions & Outputs
| Slot width | Single-slot | Dual-slot |
|---|---|---|
| Length | 145 mm 5.7 inches | 241 mm 9.5 inches |
| TDP | 110 W | 140 W |
| Suggested PSU | 300 W | 300 W |
| Outputs | 2x DVI1x mini-HDMI | 2x DVI1x HDMI1x DisplayPort |
| Power connectors | 1x 6-pin | 1x 6-pin |
| Board number | P2010 | 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 |
