Tesla A100 vs Tesla K20m

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Primary details

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

Place in the ranking409not rated
Place by popularitynot in top-100not in top-100
Cost-effectiveness evaluation0.59no data
Power efficiency3.68no data
ArchitectureKepler (2012−2018)Ampere (2020−2024)
GPU code nameGK110GA100
Market segmentWorkstationWorkstation
Release date5 January 2013 (11 years ago)14 May 2020 (4 years ago)
Launch price (MSRP)$3,199 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 cores24967936
Core clock speed706 MHz1110 MHz
Number of transistors7,080 million38,000 million
Manufacturing process technology28 nm7 nm
Power consumption (TDP)225 Watt260 Watt
Texture fill rate146.8550.6
Floating-point processing power3.524 TFLOPS17.62 TFLOPS
ROPs40128
TMUs208496

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 2.0 x16PCIe 4.0 x16
Length267 mm267 mm
Width2-slot2-slot
Supplementary power connectors1x 6-pin + 1x 8-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 typeGDDR5HBM2e
Maximum RAM amount5 GB40 GB
Memory bus width320 Bit4096 Bit
Memory clock speed1300 MHz2400 MHz
Memory bandwidth208.0 GB/s1,229 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 (11_0)12 (12_1)
Shader Model5.1no data
OpenGL4.64.6
OpenCL1.2no data
Vulkan1.1.126-
CUDA3.5-

Pros & cons summary


Recency 5 January 2013 14 May 2020
Maximum RAM amount 5 GB 40 GB
Chip lithography 28 nm 7 nm
Power consumption (TDP) 225 Watt 260 Watt

Tesla K20m has 15.6% lower power consumption.

Tesla A100, on the other hand, has an age advantage of 7 years, a 700% higher maximum VRAM amount, and a 300% more advanced lithography process.

We couldn't decide between Tesla K20m and Tesla A100. 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 K20m
Tesla K20m
NVIDIA Tesla A100
Tesla A100

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.


3.3 17 votes

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3.5 237 votes

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Questions & comments

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