NVIDIA GeForce 845M vs NVIDIA GeForce 940MX
Graphics Processor
| GPU model | GM107 | GM107 |
|---|---|---|
| GPU variant | N15S-GT1R | N16S-GT1R |
| Architecture | Maxwell | Maxwell |
| Foundry | TSMC | TSMC |
| Manufacturing process | 28 nm | 28 nm |
| Number of transistors | 1,870 million | 1,870 million |
| Die size | 148 mm² | 148 mm² |
Mobile graphics
| Release date | Feb 7th, 2015 | Jun 28th, 2016 |
|---|---|---|
| Generation | GeForce 800M | GeForce 900M |
| Production | End-of-life | End-of-life |
| Interface | PCIe 3.0 x16 | PCIe 3.0 x8 |
| Predecessor | GeForce 700M | GeForce 800M |
| Successor | GeForce 900M | GeForce 10 Mobile |
Clocks
| GPU clock | 863 MHz | — |
|---|---|---|
| Memory clock | 1001 MHz 2 Gbps effective | 1253 MHz 5 Gbps effective |
| Base clock | — | 795 MHz |
| Boost clock | — | 861 MHz |
Memory Configuration
| Memory size | 2 GB | 2 GB |
|---|---|---|
| Memory type | DDR3 | GDDR5 |
| Memory bus width | 64 bit | 64 bit |
| Bandwidth | 16.02 GB/s | 40.10 GB/s |
Render Configuration
| Shading units | 512 | 512 |
|---|---|---|
| TMUs | 32 | 32 |
| ROPs | 16 | 8 |
| SMM count | 4 | 4 |
| Cache L1 | 64 KB (per SMM) | 64 KB (per SMM) |
| Cache L2 | 1024 KB | 1024 KB |
Performance
| Pixel rate | 13.81 GPixel/s | 6.888 GPixel/s |
|---|---|---|
| Texture rate | 27.62 GTexel/s | 27.55 GTexel/s |
| FP32 (float) performance | 883.7 GFLOPS | 881.7 GFLOPS |
| FP64 (double) performance | 27.62 GFLOPS (1:32) | 27.55 GFLOPS (1:32) |
Dimensions & Outputs
| Slot width | IGP | MXM Module |
|---|---|---|
| TDP | 45 W | 23 W |
| Outputs | No outputs | No outputs |
| Power connectors | — | None |
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 | 5.0 |
| Shader model | 5.1 | 5.1 |
