Tesla K20Xm vs Tesla M40

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Aggregate performance score

We've compared Tesla M40 and Tesla K20Xm, covering specs and all relevant benchmarks.

Tesla M40
2015
12 GB GDDR5, 250 Watt
27.16
+259%

Tesla M40 outperforms Tesla K20Xm by a whopping 259% based on our aggregate benchmark results.

Primary details

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

Place in the ranking204529
Place by popularitynot in top-100not in top-100
Cost-effectiveness evaluationno data0.11
Power efficiency7.452.21
ArchitectureMaxwell 2.0 (2014−2019)Kepler (2012−2018)
GPU code nameGM200GK110
Market segmentWorkstationWorkstation
Release date10 November 2015 (9 years ago)12 November 2012 (12 years ago)
Launch price (MSRP)no data$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 cores30722688
Core clock speed948 MHz732 MHz
Boost clock speed1112 MHzno data
Number of transistors8,000 million7,080 million
Manufacturing process technology28 nm28 nm
Power consumption (TDP)250 Watt235 Watt
Texture fill rate213.5164.0
Floating-point processing power6.832 TFLOPS3.935 TFLOPS
ROPs9648
TMUs192224

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 connectors8-pin EPSno 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 amount12 GB6 GB
Memory bus width384 Bit384 Bit
Memory clock speed1502 MHz1300 MHz
Memory bandwidth288.4 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 (12_1)12 (11_0)
Shader Model6.75.1
OpenGL4.64.6
OpenCL3.01.2
Vulkan1.31.1.126
CUDA5.23.5

Synthetic benchmark performance

Non-gaming benchmark results comparison. The combined score is measured on a 0-100 point scale.


Combined synthetic benchmark score

This is our combined benchmark score. We are regularly improving our combining algorithms, but if you find some perceived inconsistencies, feel free to speak up in comments section, we usually fix problems quickly.

Tesla M40 27.16
+259%
Tesla K20Xm 7.57

Passmark

This is the most ubiquitous GPU benchmark. It gives the graphics card a thorough evaluation under various types of load, providing four separate benchmarks for Direct3D versions 9, 10, 11 and 12 (the last being done in 4K resolution if possible), and few more tests engaging DirectCompute capabilities.

Tesla M40 10465
+259%
Tesla K20Xm 2917

Gaming performance

Let's see how good the compared graphics cards are for gaming. Particular gaming benchmark results are measured in FPS.

Pros & cons summary


Performance score 27.16 7.57
Recency 10 November 2015 12 November 2012
Maximum RAM amount 12 GB 6 GB
Power consumption (TDP) 250 Watt 235 Watt

Tesla M40 has a 258.8% higher aggregate performance score, an age advantage of 2 years, and a 100% higher maximum VRAM amount.

Tesla K20Xm, on the other hand, has 6.4% lower power consumption.

The Tesla M40 is our recommended choice as it beats the Tesla K20Xm in performance tests.


Should you still have questions concerning choice between the reviewed GPUs, ask them in Comments section, and we shall answer.

Vote for your favorite

Do you think we are right or mistaken in our choice? Vote by clicking "Like" button near your favorite graphics card.


NVIDIA Tesla M40
Tesla M40
NVIDIA Tesla K20Xm
Tesla K20Xm

Comparisons with similar GPUs

We selected several comparisons of graphics cards with performance close to those reviewed, providing you with more options to consider.

Community ratings

Here you can see the user ratings of the compared graphics cards, as well as rate them yourself.


4.3 87 votes

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5 3 votes

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Questions & comments

Here you can ask a question about this comparison, agree or disagree with our judgements, or report an error or mismatch.