A100 SXM4 40 GB vs Tesla M40

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Primary details

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

Place in the ranking200not rated
Place by popularitynot in top-100not in top-100
Power efficiency7.53no data
ArchitectureMaxwell 2.0 (2014−2019)Ampere (2020−2024)
GPU code nameGM200GA100
Market segmentWorkstationWorkstation
Release date10 November 2015 (8 years ago)14 May 2020 (4 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 cores30726912
Core clock speed948 MHz1095 MHz
Boost clock speed1112 MHz1410 MHz
Number of transistors8,000 million54,200 million
Manufacturing process technology28 nm7 nm
Power consumption (TDP)250 Watt400 Watt
Texture fill rate213.5609.1
Floating-point processing power6.832 TFLOPS19.49 TFLOPS
ROPs96160
TMUs192432
Tensor Coresno data432

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
Length267 mmno data
Width2-slotIGP
Supplementary power connectors8-pin EPSNone

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 typeGDDR5HBM2e
Maximum RAM amount12 GB40 GB
Memory bus width384 Bit5120 Bit
Memory clock speed1502 MHz1215 MHz
Memory bandwidth288.4 GB/s1,555 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.

DirectX12 (12_1)N/A
Shader Model6.7N/A
OpenGL4.6N/A
OpenCL3.02.0
Vulkan1.3N/A
CUDA5.28.0

Pros & cons summary


Recency 10 November 2015 14 May 2020
Maximum RAM amount 12 GB 40 GB
Chip lithography 28 nm 7 nm
Power consumption (TDP) 250 Watt 400 Watt

Tesla M40 has 60% lower power consumption.

A100 SXM4 40 GB, on the other hand, has an age advantage of 4 years, a 233.3% higher maximum VRAM amount, and a 300% more advanced lithography process.

We couldn't decide between Tesla M40 and A100 SXM4 40 GB. 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 Tesla M40
Tesla M40
NVIDIA A100 SXM4 40 GB
A100 SXM4 40 GB

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Community ratings

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4.3 87 votes

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3.5 13 votes

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