T400 vs Radeon RX 550X 640SP

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Primary details

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

Place in the rankingnot rated466
Place by popularitynot in top-100not in top-100
Power efficiencyno data21.70
ArchitectureGCN 4.0 (2016−2020)Turing (2018−2022)
GPU code nameBaffinTU117
Market segmentDesktopWorkstation
Release date11 April 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 cores640384
Core clock speed1019 MHz420 MHz
Boost clock speed1071 MHz1425 MHz
Number of transistors3,000 million4,700 million
Manufacturing process technology14 nm12 nm
Power consumption (TDP)60 Watt30 Watt
Texture fill rate42.8434.20
Floating-point processing power1.371 TFLOPS1.094 TFLOPS
ROPs1616
TMUs4024

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).

InterfacePCIe 3.0 x8PCIe 3.0 x16
Length145 mmno data
Width2-slot1-slot
Supplementary power connectorsNoneNone

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 typeGDDR5GDDR6
Maximum RAM amount2 GB2 GB
Memory bus width128 Bit64 Bit
Memory clock speed1500 MHz1250 MHz
Memory bandwidth96 GB/s80 GB/s

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 Connectors1x DVI, 1x HDMI, 1x DisplayPort3x mini-DisplayPort
HDMI+-

API compatibility

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

DirectX12 (12_0)12 (12_1)
Shader Model6.46.6
OpenGL4.64.6
OpenCL2.03.0
Vulkan1.2.1311.2
CUDA-7.5

Pros & cons summary


Recency 11 April 2018 6 May 2021
Chip lithography 14 nm 12 nm
Power consumption (TDP) 60 Watt 30 Watt

T400 has an age advantage of 3 years, a 16.7% more advanced lithography process, and 100% lower power consumption.

We couldn't decide between Radeon RX 550X 640SP and T400. We've got no test results to judge.

Be aware that Radeon RX 550X 640SP is a desktop 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.

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AMD Radeon RX 550X 640SP
Radeon RX 550X 640SP
NVIDIA T400
T400

Comparisons with similar GPUs

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Community ratings

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


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3.8 375 votes

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Questions & comments

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