NVIDIA GeForce GT 650M vs NVIDIA GeForce GTX 660
Graphics Processor
| GPU model | GK107 | GK106 |
|---|---|---|
| GPU variant | N13P-GT-A2 | GK106-400-A1 |
| Architecture | Kepler | Kepler |
| Foundry | TSMC | TSMC |
| Manufacturing process | 28 nm | 28 nm |
| Number of transistors | 1,270 million | 2,540 million |
| Die size | 118 mm² | 221 mm² |
Mobile graphics
| Release date | Mar 22nd, 2012 | — |
|---|---|---|
| Generation | GeForce 600M | — |
| Production | End-of-life | — |
| Interface | PCIe 3.0 x16 | — |
| Predecessor | GeForce 500M | — |
| Successor | GeForce 700M | — |
Clocks
| Base clock | 835 MHz | 980 MHz |
|---|---|---|
| Boost clock | 950 MHz | 1032 MHz |
| Memory clock | 900 MHz 1800 Mbps effective | 1502 MHz 6 Gbps effective |
Memory Configuration
| Memory size | 1024 MB | 2 GB |
|---|---|---|
| Memory type | DDR3 | GDDR5 |
| Memory bus width | 128 bit | 192 bit |
| Bandwidth | 28.80 GB/s | 144.2 GB/s |
Render Configuration
| Shading units | 384 | 960 |
|---|---|---|
| TMUs | 32 | 80 |
| ROPs | 16 | 24 |
| SMX count | 2 | 5 |
| Cache L1 | 16 KB (per SMX) | 16 KB (per SMX) |
| Cache L2 | 256 KB | 384 KB |
Performance
| Pixel rate | 7.600 GPixel/s | 20.64 GPixel/s |
|---|---|---|
| Texture rate | 30.40 GTexel/s | 82.56 GTexel/s |
| FP32 (float) performance | 729.6 GFLOPS | 1.981 TFLOPS |
| FP64 (double) performance | 30.40 GFLOPS (1:24) | 82.56 GFLOPS (1:24) |
Dimensions & Outputs
| TDP | 45 W | 140 W |
|---|---|---|
| Outputs | No outputs | 2x DVI1x HDMI1x DisplayPort |
| Slot width | — | Dual-slot |
| Length | — | 241 mm 9.5 inches |
| Suggested PSU | — | 300 W |
| 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 |
Other Features
Graphics Card
| Release date | — | Sep 6th, 2012 |
|---|---|---|
| Generation | — | GeForce 600 |
| Production | — | End-of-life |
| Launch price | — | 229 USD |
| Interface | — | PCIe 3.0 x16 |
| Reviews | — | 77 in our database |
| Predecessor | — | GeForce 500 |
| Successor | — | GeForce 700 |
