Tesla K20Xm vs Tesla K20X

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Primary details

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

Place in the rankingnot rated527
Place by popularitynot in top-100not in top-100
Cost-effectiveness evaluationno data0.10
Power efficiencyno data2.24
ArchitectureKepler (2012−2018)Kepler (2012−2018)
GPU code nameGK110GK110
Market segmentWorkstationWorkstation
Release date12 November 2012 (12 years ago)12 November 2012 (12 years ago)
Launch price (MSRP)$7,699 $7,699

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 cores26882688
Core clock speed732 MHz732 MHz
Number of transistors7,080 million7,080 million
Manufacturing process technology28 nm28 nm
Power consumption (TDP)235 Watt235 Watt
Texture fill rate164.0164.0
Floating-point processing power3.935 TFLOPS3.935 TFLOPS
ROPs4848
TMUs224224

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 mm267 mm
Width2-slot2-slot
Supplementary power connectors1x 6-pin + 1x 8-pinno data

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 typeGDDR5GDDR5
Maximum RAM amount6 GB6 GB
Memory bus width384 Bit384 Bit
Memory clock speed1300 MHz1300 MHz
Memory bandwidth249.6 GB/s249.6 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 (11_0)
Shader Model5.15.1
OpenGL4.64.6
OpenCL1.21.2
Vulkan1.1.1261.1.126
CUDA3.53.5

Pros & cons summary


We couldn't decide between Tesla K20X and Tesla K20Xm. 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 K20X
Tesla K20X
NVIDIA Tesla K20Xm
Tesla K20Xm

Comparisons with similar GPUs

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Community ratings

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3.2 51 vote

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5 3 votes

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Questions & comments

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