T400 vs Iris Plus Graphics G4
Primary details
GPU architecture, market segment, value for money and other general parameters compared.
| Place in the ranking | not rated | 471 |
| Place by popularity | not in top-100 | not in top-100 |
| Power efficiency | no data | 21.80 |
| Architecture | Generation 11.0 (2019−2021) | Turing (2018−2022) |
| GPU code name | Ice Lake GT2 | TU117 |
| Market segment | Laptop | Workstation |
| Release date | 29 May 2019 (5 years ago) | 6 May 2021 (3 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 | 384 | 384 |
| Core clock speed | 300 MHz | 420 MHz |
| Boost clock speed | 1050 MHz | 1425 MHz |
| Number of transistors | no data | 4,700 million |
| Manufacturing process technology | 10 nm | 12 nm |
| Power consumption (TDP) | 15 Watt | 30 Watt |
| Texture fill rate | 25.20 | 34.20 |
| Floating-point processing power | 0.8064 TFLOPS | 1.094 TFLOPS |
| ROPs | 8 | 16 |
| TMUs | 24 | 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 | PCIe 3.0 x1 | PCIe 3.0 x16 |
| Width | no data | 1-slot |
| Supplementary power connectors | no data | None |
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 | GDDR6 |
| Maximum RAM amount | System Shared | 2 GB |
| Memory bus width | System Shared | 64 Bit |
| Memory clock speed | System Shared | 1250 MHz |
| Memory bandwidth | no data | 80 GB/s |
| Shared memory | + | - |
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 | No outputs | 3x mini-DisplayPort |
API compatibility
List of supported 3D and general-purpose computing APIs, including their specific versions.
| DirectX | 12 (12_1) | 12 (12_1) |
| Shader Model | 6.4 | 6.6 |
| OpenGL | 4.6 | 4.6 |
| OpenCL | 2.1 | 3.0 |
| Vulkan | 1.1.97 | 1.2 |
| CUDA | - | 7.5 |
Pros & cons summary
| Recency | 29 May 2019 | 6 May 2021 |
| Chip lithography | 10 nm | 12 nm |
| Power consumption (TDP) | 15 Watt | 30 Watt |
Iris Plus Graphics G4 has a 20% more advanced lithography process, and 100% lower power consumption.
T400, on the other hand, has an age advantage of 1 year.
We couldn't decide between Iris Plus Graphics G4 and T400. We've got no test results to judge.
Be aware that Iris Plus Graphics G4 is a notebook card while T400 is a workstation one.
Should you still have questions concerning choice between the reviewed GPUs, ask them in Comments section, and we shall answer.
Comparisons with similar GPUs
We selected several comparisons of graphics cards with performance close to those reviewed, providing you with more options to consider.
