L40 vs T400

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Primary details

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

Place in the ranking471not rated
Place by popularitynot in top-100not in top-100
Power efficiency21.47no data
ArchitectureTuring (2018−2022)Ada Lovelace (2022−2024)
GPU code nameTU117AD102
Market segmentWorkstationWorkstation
Release date6 May 2021 (3 years ago)13 October 2022 (2 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 cores38418176
Core clock speed420 MHz735 MHz
Boost clock speed1425 MHz2490 MHz
Number of transistors4,700 million76,300 million
Manufacturing process technology12 nm4 nm
Power consumption (TDP)30 Watt300 Watt
Texture fill rate34.201,414
Floating-point processing power1.094 TFLOPS90.52 TFLOPS
ROPs16192
TMUs24568
Tensor Coresno data568
Ray Tracing Coresno data142

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 x16PCIe 4.0 x16
Lengthno data267 mm
Width1-slot2-slot
Supplementary power connectorsNone1x 16-pin

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 typeGDDR6GDDR6
Maximum RAM amount2 GB48 GB
Memory bus width64 Bit384 Bit
Memory clock speed1250 MHz2250 MHz
Memory bandwidth80 GB/s864.0 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 Connectors3x mini-DisplayPort4x DisplayPort 1.4a

API compatibility

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

DirectX12 (12_1)12 Ultimate (12_2)
Shader Model6.66.7
OpenGL4.64.6
OpenCL3.03.0
Vulkan1.21.3
CUDA7.58.9

Synthetic benchmark performance

Non-gaming benchmark results comparison. The combined score is measured on a 0-100 point scale.



GeekBench 5 OpenCL

Geekbench 5 is a widespread graphics card benchmark combined from 11 different test scenarios. All these scenarios rely on direct usage of GPU's processing power, no 3D rendering is involved. This variation uses OpenCL API by Khronos Group.

T400 16959
L40 331157
+1853%

GeekBench 5 Vulkan

Geekbench 5 is a widespread graphics card benchmark combined from 11 different test scenarios. All these scenarios rely on direct usage of GPU's processing power, no 3D rendering is involved. This variation uses Vulkan API by AMD & Khronos Group.

T400 15843
L40 232005
+1364%

Pros & cons summary


Recency 6 May 2021 13 October 2022
Maximum RAM amount 2 GB 48 GB
Chip lithography 12 nm 4 nm
Power consumption (TDP) 30 Watt 300 Watt

T400 has 900% lower power consumption.

L40, on the other hand, has an age advantage of 1 year, a 2300% higher maximum VRAM amount, and a 200% more advanced lithography process.

We couldn't decide between T400 and L40. 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.

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NVIDIA T400
T400
NVIDIA L40
L40

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.


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2.9 23 votes

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Questions & comments

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