CMP 40HX vs Tesla K40st

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Primary details

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

Place in the rankingnot rated304
Place by popularitynot in top-100not in top-100
Cost-effectiveness evaluationno data19.18
Power efficiencyno data6.85
ArchitectureKepler (2012−2018)Turing (2018−2022)
GPU code nameGK110BTU106
Market segmentWorkstationWorkstation
Release date22 November 2013 (10 years ago)25 February 2021 (3 years ago)
Launch price (MSRP)$7,699 $699

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 cores28802304
Core clock speed575 MHz1470 MHz
Boost clock speedno data1650 MHz
Number of transistors7,080 million10,800 million
Manufacturing process technology28 nm12 nm
Power consumption (TDP)245 Watt185 Watt
Texture fill rate138.0237.6
Floating-point processing power3.312 TFLOPS7.603 TFLOPS
ROPs4864
TMUs240144
Tensor Coresno data288
Ray Tracing Coresno data36

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 3.0 x16
Length267 mm229 mm
Width2-slot2-slot
Supplementary power connectorsno data1x 8-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 typeGDDR5GDDR6
Maximum RAM amount12 GB8 GB
Memory bus width384 Bit256 Bit
Memory clock speed1502 MHz1750 MHz
Memory bandwidth288.4 GB/s448.0 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 ConnectorsNo outputsNo outputs

API compatibility

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

DirectX12 (11_1)12 Ultimate (12_2)
Shader Model5.16.6
OpenGL4.64.6
OpenCL1.23.0
Vulkan1.1.1261.2
CUDA3.57.5

Pros & cons summary


Recency 22 November 2013 25 February 2021
Maximum RAM amount 12 GB 8 GB
Chip lithography 28 nm 12 nm
Power consumption (TDP) 245 Watt 185 Watt

Tesla K40st has a 50% higher maximum VRAM amount.

CMP 40HX, on the other hand, has an age advantage of 7 years, a 133.3% more advanced lithography process, and 32.4% lower power consumption.

We couldn't decide between Tesla K40st and CMP 40HX. 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 K40st
Tesla K40st
NVIDIA CMP 40HX
CMP 40HX

Comparisons with similar GPUs

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Community ratings

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4.2 32 votes

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Questions & comments

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