NVIDIA GeForce GT 645M vs NVIDIA Quadro CX
Graphics Processor
| GPU model | GK107 | GT200B |
|---|---|---|
| GPU variant | N13P-GS | — |
| Architecture | Kepler | Tesla 2.0 |
| Foundry | TSMC | TSMC |
| Manufacturing process | 28 nm | 55 nm |
| Number of transistors | 1,270 million | 1,400 million |
| Die size | 118 mm² | 470 mm² |
Mobile graphics
| Release date | Oct 1st, 2012 | — |
|---|---|---|
| Generation | GeForce 600M | — |
| Production | End-of-life | — |
| Interface | PCIe 3.0 x16 | — |
| Predecessor | GeForce 500M | — |
| Successor | GeForce 700M | — |
Clocks
| GPU clock | 709 MHz | 602 MHz |
|---|---|---|
| Memory clock | 900 MHz 1800 Mbps effective | 800 MHz 1600 Mbps effective |
| Shader clock | — | 1204 MHz |
Memory Configuration
| Memory size | 2 GB | 1536 MB |
|---|---|---|
| Memory type | DDR3 | GDDR3 |
| Memory bus width | 128 bit | 384 bit |
| Bandwidth | 28.80 GB/s | 76.80 GB/s |
Render Configuration
| Shading units | 384 | 192 |
|---|---|---|
| TMUs | 32 | 64 |
| ROPs | 16 | 24 |
| SMX count | 2 | — |
| Cache L1 | 16 KB (per SMX) | — |
| Cache L2 | 256 KB | 192 KB |
| SM count | — | 24 |
Performance
| Pixel rate | 5.672 GPixel/s | 14.45 GPixel/s |
|---|---|---|
| Texture rate | 22.69 GTexel/s | 38.53 GTexel/s |
| FP32 (float) performance | 544.5 GFLOPS | 462.3 GFLOPS |
| FP64 (double) performance | 22.69 GFLOPS (1:24) | 57.79 GFLOPS (1:8) |
Dimensions & Outputs
| TDP | 32 W | 150 W |
|---|---|---|
| Outputs | No outputs | 1x DVI2x DisplayPort1x S-Video |
| Slot width | — | Dual-slot |
| Length | — | 267 mm 10.5 inches |
| Suggested PSU | — | 450 W |
| Power connectors | — | 1x 6-pin |
| Board number | — | P607 |
API Support & Features
| DirectX | 12 (11_0) | 11.1 (10_0) |
|---|---|---|
| OpenGL | 4.6 | 3.3 |
| OpenCL | 3.0 | 1.1 |
| Vulkan | 1.1 | — |
| CUDA | 3.0 | 1.3 |
| Shader model | 5.1 | 4.0 |
Other Features
Graphics Card
| Release date | — | Nov 11th, 2008 |
|---|---|---|
| Generation | — | Quadro CX |
| Production | — | End-of-life |
| Launch price | — | 1,999 USD |
| Interface | — | PCIe 2.0 x16 |
| Reviews | — | 26 in our database |
