A100X vs Tesla K40s

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Primary details

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

Place in the rankingnot ratednot rated
Place by popularitynot in top-100not in top-100
ArchitectureKepler (2012−2018)Ampere (2020−2024)
GPU code nameGK110BGA100
Market segmentWorkstationWorkstation
Release date22 November 2013 (10 years ago)28 June 2021 (3 years ago)
Launch price (MSRP)$7,699 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 cores28806912
Core clock speed745 MHz795 MHz
Boost clock speed876 MHz1440 MHz
Number of transistors7,080 million54,200 million
Manufacturing process technology28 nm7 nm
Power consumption (TDP)245 Watt300 Watt
Texture fill rate210.2622.1
Floating-point processing power5.046 TFLOPS19.91 TFLOPS
ROPs48160
TMUs240432
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 x8
Length267 mm267 mm
Width2-slot2-slot
Supplementary power connectorsno data1x 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 typeGDDR5HBM2e
Maximum RAM amount12 GB80 GB
Memory bus width384 Bit5120 Bit
Memory clock speed1502 MHz1593 MHz
Memory bandwidth288.4 GB/s2,039 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_1)N/A
Shader Model5.1N/A
OpenGL4.6N/A
OpenCL1.23.0
Vulkan1.1.126N/A
CUDA3.58.0

Pros & cons summary


Recency 22 November 2013 28 June 2021
Maximum RAM amount 12 GB 80 GB
Chip lithography 28 nm 7 nm
Power consumption (TDP) 245 Watt 300 Watt

Tesla K40s has 22.4% lower power consumption.

A100X, on the other hand, has an age advantage of 7 years, a 566.7% higher maximum VRAM amount, and a 300% more advanced lithography process.

We couldn't decide between Tesla K40s and A100X. 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 K40s
Tesla K40s
NVIDIA A100X
A100X

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