Iris Plus Graphics 940 vs HD Graphics 405
Primary details
GPU architecture, market segment, value for money and other general parameters compared.
| Place in the ranking | 1159 | not rated |
| Place by popularity | not in top-100 | not in top-100 |
| Power efficiency | 8.31 | no data |
| Architecture | Generation 8.0 (2014−2015) | Generation 11.0 (2019−2021) |
| GPU code name | Braswell GT1 | Ice Lake GT2 |
| Market segment | Desktop | Desktop |
| Release date | 1 April 2015 (9 years ago) | no data (2024 years ago) |
Detailed specifications
General parameters such as number of shaders, GPU core base clock and boost clock speeds, manufacturing process, texturing and calculation speed. Note that power consumption of some graphics cards can well exceed their nominal TDP, especially when overclocked.
| Pipelines / CUDA cores | 128 | 384 |
| Core clock speed | 200 MHz | 400 MHz |
| Boost clock speed | 600 MHz | 1000 MHz |
| Number of transistors | 189 million | no data |
| Manufacturing process technology | 14 nm | 10 nm |
| Power consumption (TDP) | 6 Watt | 15 Watt |
| Texture fill rate | 9.600 | 24.00 |
| Floating-point processing power | 0.1536 TFLOPS | 0.768 TFLOPS |
| ROPs | 2 | 8 |
| TMUs | 16 | 24 |
Form factor & compatibility
Information on compatibility with other computer components. Useful when choosing a future computer configuration or upgrading an existing one. For desktop graphics cards it's interface and bus (motherboard compatibility), additional power connectors (power supply compatibility).
| Interface | Ring Bus | PCIe 3.0 x1 |
| Width | IGP | IGP |
VRAM capacity and type
Parameters of VRAM installed: its type, size, bus, clock and resulting bandwidth. Integrated GPUs have no dedicated video RAM and use a shared part of system RAM.
| Memory type | System Shared | System Shared |
| Maximum RAM amount | System Shared | System Shared |
| Memory bus width | System Shared | System Shared |
| Memory clock speed | System Shared | System Shared |
| Shared memory | + | no data |
Connectivity and outputs
Types and number of video connectors present on the reviewed GPUs. As a rule, data in this section is precise only for desktop reference ones (so-called Founders Edition for NVIDIA chips). OEM manufacturers may change the number and type of output ports, while for notebook cards availability of certain video outputs ports depends on the laptop model rather than on the card itself.
| Display Connectors | Portable Device Dependent | No outputs |
API compatibility
List of supported 3D and general-purpose computing APIs, including their specific versions.
| DirectX | 12 (11_1) | 12 (12_1) |
| Shader Model | 5.1 | no data |
| OpenGL | 4.3 | 4.6 |
| OpenCL | 3.0 | no data |
| Vulkan | + | - |
Pros & cons summary
| Chip lithography | 14 nm | 10 nm |
| Power consumption (TDP) | 6 Watt | 15 Watt |
HD Graphics 405 has 150% lower power consumption.
Iris Plus Graphics 940, on the other hand, has a 40% more advanced lithography process.
We couldn't decide between HD Graphics 405 and Iris Plus Graphics 940. We've got no test results to judge.
Should you still have questions concerning choice between the reviewed GPUs, ask them in Comments section, and we shall answer.
Comparisons with similar GPUs
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