T400 4 GB vs Radeon Vega 6 Mobile

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Primary details

GPU architecture, market segment, value for money and other general parameters compared.

Place in the rankingnot rated457
Place by popularitynot in top-100not in top-100
Power efficiencyno data22.70
ArchitectureGCN 5.0 (2017−2020)Turing (2018−2022)
GPU code nameRaven-MTU117
Market segmentLaptopWorkstation
Release date8 January 2018 (6 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 cores384384
Core clock speed300 MHz420 MHz
Boost clock speed1101 MHz1425 MHz
Number of transistors4,940 million4,700 million
Manufacturing process technology14 nm12 nm
Power consumption (TDP)15 Watt30 Watt
Texture fill rate26.4234.20
Floating-point processing power0.8456 TFLOPS1.094 TFLOPS
ROPs816
TMUs2424

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).

InterfaceIGPPCIe 3.0 x16
Widthno data1-slot
Supplementary power connectorsno dataNone

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 typeSystem SharedGDDR6
Maximum RAM amountSystem Shared4 GB
Memory bus widthSystem Shared64 Bit
Memory clock speedSystem Shared1250 MHz
Memory bandwidthno data80 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 ConnectorsPortable Device Dependent3x mini-DisplayPort

API compatibility

List of supported 3D and general-purpose computing APIs, including their specific versions.

DirectX12 (12_1)12 (12_1)
Shader Model6.76.6
OpenGL4.64.6
OpenCL2.13.0
Vulkan1.31.2
CUDA-7.5

Pros & cons summary


Recency 8 January 2018 6 May 2021
Chip lithography 14 nm 12 nm
Power consumption (TDP) 15 Watt 30 Watt

Vega 6 Mobile has 100% lower power consumption.

T400 4 GB, on the other hand, has an age advantage of 3 years, and a 16.7% more advanced lithography process.

We couldn't decide between Radeon Vega 6 Mobile and T400 4 GB. We've got no test results to judge.

Be aware that Radeon Vega 6 Mobile is a notebook card while T400 4 GB is a workstation one.


Should you still have questions concerning choice between the reviewed GPUs, ask them in Comments section, and we shall answer.

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AMD Radeon Vega 6 Mobile
Radeon Vega 6 Mobile
NVIDIA T400 4 GB
T400 4 GB

Comparisons with similar GPUs

We selected several comparisons of graphics cards with performance close to those reviewed, providing you with more options to consider.

Community ratings

Here you can see the user ratings of the compared graphics cards, as well as rate them yourself.


3.5 41 vote

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4.1 57 votes

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Questions & comments

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