NVIDIA GeForce 945M vs NVIDIA Quadro K4000M
Graphics Processor
| GPU model | GM107 | GK104 |
|---|---|---|
| Architecture | Maxwell | Kepler |
| Foundry | TSMC | TSMC |
| Manufacturing process | 28 nm | 28 nm |
| Number of transistors | 1,870 million | 3,540 million |
| Die size | 148 mm² | 294 mm² |
| GPU variant | — | N14E-Q3-A2 |
Mobile graphics
| Release date | Oct 27th, 2015 | Jun 1st, 2012 |
|---|---|---|
| Generation | GeForce 900M | Quadro Mobile (Kx000M) |
| Production | End-of-life | End-of-life |
| Interface | MXM-B (3.0) | MXM-B (3.0) |
| Predecessor | GeForce 800M | — |
| Successor | GeForce 10 Mobile | — |
| Reviews | — | 26 in our database |
Clocks
| Base clock | 928 MHz | — |
|---|---|---|
| Boost clock | 1020 MHz | — |
| Memory clock | 900 MHz 1800 Mbps effective | 700 MHz 2.8 Gbps effective |
| GPU clock | — | 601 MHz |
Memory Configuration
| Memory size | 2 GB | 4 GB |
|---|---|---|
| Memory type | DDR3 | GDDR5 |
| Memory bus width | 128 bit | 256 bit |
| Bandwidth | 28.80 GB/s | 89.60 GB/s |
Render Configuration
| Shading units | 640 | 960 |
|---|---|---|
| TMUs | 40 | 80 |
| ROPs | 16 | 32 |
| SMM count | 5 | — |
| Cache L1 | 64 KB (per SMM) | 16 KB (per SMX) |
| Cache L2 | 2 MB | 512 KB |
| SMX count | — | 5 |
Performance
| Pixel rate | 16.32 GPixel/s | 12.02 GPixel/s |
|---|---|---|
| Texture rate | 40.80 GTexel/s | 48.08 GTexel/s |
| FP32 (float) performance | 1,306 GFLOPS | 1,154 GFLOPS |
| FP64 (double) performance | 40.80 GFLOPS (1:32) | 48.08 GFLOPS (1:24) |
Dimensions & Outputs
| Slot width | MXM Module | MXM Module |
|---|---|---|
| TDP | 75 W | 100 W |
| Outputs | No outputs | No outputs |
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 | 5.0 | 3.0 |
| Shader model | 5.1 | 5.1 |
