RTX A400 vs L40

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Primary details

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

Place in the rankingnot rated420
Place by popularitynot in top-100not in top-100
Power efficiencyno data15.47
ArchitectureAda Lovelace (2022−2024)Ampere (2020−2024)
GPU code nameAD102GA107
Market segmentWorkstationWorkstation
Release date13 October 2022 (2 years ago)16 April 2024 (less than a year 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 cores18176768
Core clock speed735 MHz727 MHz
Boost clock speed2490 MHz1762 MHz
Number of transistors76,300 million8,700 million
Manufacturing process technology4 nm8 nm
Power consumption (TDP)300 Watt50 Watt
Texture fill rate1,41442.29
Floating-point processing power90.52 TFLOPS2.706 TFLOPS
ROPs19216
TMUs56824
Tensor Cores56824
Ray Tracing Cores1426

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 4.0 x16PCIe 4.0 x8
Length267 mm163 mm
Width2-slot1-slot
Supplementary power connectors1x 16-pinNone

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 amount48 GB4 GB
Memory bus width384 Bit64 Bit
Memory clock speed2250 MHz1500 MHz
Memory bandwidth864.0 GB/s96 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 Connectors4x DisplayPort 1.4a4x mini-DisplayPort 1.4a

API compatibility

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

DirectX12 Ultimate (12_2)12 Ultimate (12_2)
Shader Model6.76.7
OpenGL4.64.6
OpenCL3.03.0
Vulkan1.31.3
CUDA8.98.6

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.

L40 331157
+1361%
RTX A400 22671

Pros & cons summary


Recency 13 October 2022 16 April 2024
Maximum RAM amount 48 GB 4 GB
Chip lithography 4 nm 8 nm
Power consumption (TDP) 300 Watt 50 Watt

L40 has a 1100% higher maximum VRAM amount, and a 100% more advanced lithography process.

RTX A400, on the other hand, has an age advantage of 1 year, and 500% lower power consumption.

We couldn't decide between L40 and RTX A400. 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 L40
L40
NVIDIA RTX A400
RTX A400

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.


2.9 23 votes

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2.9 15 votes

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Questions & comments

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