Quadro T400 Mobile vs Quadro NVS 420

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Primary details

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

Place in the ranking1321not rated
Place by popularitynot in top-100not in top-100
Cost-effectiveness evaluation0.01no data
Power efficiency0.53no data
ArchitectureTesla (2006−2010)Turing (2018−2022)
GPU code nameG98TU117
Market segmentWorkstationMobile workstation
Release date20 January 2009 (15 years ago)no data
Launch price (MSRP)$131.43 no data

Cost-effectiveness evaluation

Performance to price ratio. The higher, the better.

no data

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 cores8896
Core clock speed550 MHzno data
Boost clock speedno data1425 MHz
Number of transistors210 million4,700 million
Manufacturing process technology65 nm12 nm
Power consumption (TDP)40 Watt18 Watt
Texture fill rate4.40079.80
Floating-point processing power0.0224 TFLOPS2.554 TFLOPS
ROPs432
TMUs856

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 1.0 x16PCIe 3.0 x16
Width1-slotno data
Supplementary power connectorsNoneno data

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 typeGDDR3GDDR6
Maximum RAM amount256 MB2 GB
Memory bus width64 Bit64 Bit
Memory clock speed700 MHz10 GB/s
Memory bandwidth11.2 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 ConnectorsNo outputsNo outputs

API compatibility

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

DirectX11.1 (10_0)12 (12_1)
Shader Model4.06.6
OpenGL3.34.6
OpenCL1.13.0
VulkanN/A1.2
CUDA1.17.5

Pros & cons summary


Maximum RAM amount 256 MB 2 GB
Chip lithography 65 nm 12 nm
Power consumption (TDP) 40 Watt 18 Watt

T400 Mobile has a 700% higher maximum VRAM amount, a 441.7% more advanced lithography process, and 122.2% lower power consumption.

We couldn't decide between Quadro NVS 420 and Quadro T400 Mobile. We've got no test results to judge.

Be aware that Quadro NVS 420 is a workstation card while Quadro T400 Mobile is a mobile 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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NVIDIA Quadro NVS 420
Quadro NVS 420
NVIDIA Quadro T400 Mobile
Quadro T400 Mobile

Comparisons with similar GPUs

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Community ratings

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3.1 9 votes

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2.7 9 votes

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Questions & comments

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