Tesla K20X vs FirePro W4000

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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
ArchitectureGCN 1.0 (2011−2020)Kepler (2012−2018)
GPU code namePitcairnGK110
Market segmentWorkstationWorkstation
Release date7 August 2012 (12 years ago)12 November 2012 (12 years ago)
Launch price (MSRP)no data$7,699

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 cores7682688
Core clock speed825 MHz732 MHz
Number of transistors2,800 million7,080 million
Manufacturing process technology28 nm28 nm
Power consumption (TDP)75 Watt235 Watt
Texture fill rate39.60164.0
Floating-point processing power1.267 TFLOPS3.935 TFLOPS
ROPs3248
TMUs48224

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
Length183 mm267 mm
Width1-slot2-slot
Supplementary power connectorsNone1x 6-pin + 1x 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 typeGDDR5GDDR5
Maximum RAM amount2 GB6 GB
Memory bus width256 Bit384 Bit
Memory clock speed800 MHz1300 MHz
Memory bandwidth102.4 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 Connectors1x DVI, 2x DisplayPortNo outputs

API compatibility

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

DirectX12 (11_1)12 (11_0)
Shader Model5.15.1
OpenGL4.64.6
OpenCL1.21.2
Vulkan1.2.1311.1.126
CUDA-3.5

Pros & cons summary


Recency 7 August 2012 12 November 2012
Maximum RAM amount 2 GB 6 GB
Power consumption (TDP) 75 Watt 235 Watt

FirePro W4000 has 213.3% lower power consumption.

Tesla K20X, on the other hand, has an age advantage of 3 months, and a 200% higher maximum VRAM amount.

We couldn't decide between FirePro W4000 and Tesla K20X. 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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AMD FirePro W4000
FirePro W4000
NVIDIA Tesla K20X
Tesla K20X

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Community ratings

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