Intel HD Graphics 400 vs NVIDIA GeForce 840M
Graphics Processor
| GPU model | Braswell GT1 | GM108 |
|---|---|---|
| Architecture | Generation 8.0 | Maxwell |
| Foundry | Intel | TSMC |
| Manufacturing process | 14 nm | 28 nm |
| Number of transistors | unknown | unknown |
| Die size | unknown | unknown |
| GPU variant | — | N15S-GT |
Integrated Graphics
| Release date | Apr 1st, 2015 | — |
|---|---|---|
| Generation | HD Graphics-T (Airmont) | — |
| Production | Active | — |
| Interface | Ring Bus | — |
| Reviews | 1 in our database | — |
Clocks
| Base clock | 320 MHz | 1029 MHz |
|---|---|---|
| Boost clock | 600 MHz | 1124 MHz |
| Memory clock | System Shared | 1001 MHz 2 Gbps effective |
Memory Configuration
| Memory size | System Shared | 2 GB |
|---|---|---|
| Memory type | System Shared | DDR3 |
| Memory bus width | System Shared | 64 bit |
| Bandwidth | System Dependent | 16.02 GB/s |
Render Configuration
| Shading units | 96 | 384 |
|---|---|---|
| TMUs | 12 | 16 |
| ROPs | 2 | 8 |
| Execution units | 12 | — |
| SMM count | — | 3 |
| Cache L1 | — | 64 KB (per SMM) |
| Cache L2 | — | 1024 KB |
Performance
| Pixel rate | 1.200 GPixel/s | 8.992 GPixel/s |
|---|---|---|
| Texture rate | 7.200 GTexel/s | 17.98 GTexel/s |
| FP32 (float) performance | 115.2 GFLOPS | 863.2 GFLOPS |
| FP64 (double) performance | 28.80 GFLOPS (1:4) | 26.98 GFLOPS (1:32) |
Dimensions & Outputs
| Slot width | IGP | IGP |
|---|---|---|
| TDP | 6 W | 33 W |
| Outputs | No outputs | No outputs |
API Support & Features
| DirectX | 12 (11_1) | 12 (11_0) |
|---|---|---|
| OpenGL | 4.3 | 4.6 |
| OpenCL | 3.0 | 3.0 |
| Vulkan | 1.0 | 1.1 |
| Shader model | 5.1 | 5.1 |
| CUDA | — | 5.0 |
Other Features
Mobile graphics
| Release date | — | Mar 12th, 2014 |
|---|---|---|
| Generation | — | GeForce 800M |
| Production | — | End-of-life |
| Interface | — | PCIe 3.0 x8 |
| Predecessor | — | GeForce 700M |
| Successor | — | GeForce 900M |
