Tesla K20X vs Radeon HD 7400G

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Primary details

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

Place in the ranking1173not rated
Place by popularitynot in top-100not in top-100
Power efficiency2.78no data
ArchitectureTeraScale 3 (2010−2013)Kepler (2012−2018)
GPU code nameScrapperGK110
Market segmentLaptopWorkstation
Release date2 October 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 cores1922688
Core clock speed327 MHz732 MHz
Boost clock speed424 MHzno data
Number of transistors1,303 million7,080 million
Manufacturing process technology32 nm28 nm
Power consumption (TDP)17 Watt235 Watt
Texture fill rate5.088164.0
Floating-point processing power0.1628 TFLOPS3.935 TFLOPS
ROPs448
TMUs12224

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).

Laptop sizemedium sizedno data
InterfaceIGPPCIe 3.0 x16
Lengthno data267 mm
Widthno data2-slot
Supplementary power connectorsno data1x 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 typeSystem SharedGDDR5
Maximum RAM amountSystem Shared6 GB
Memory bus widthSystem Shared384 Bit
Memory clock speedSystem Shared1300 MHz
Memory bandwidthno data249.6 GB/s
Shared memory+-

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.

DirectX11.2 (11_0)12 (11_0)
Shader Model5.05.1
OpenGL4.44.6
OpenCL1.21.2
VulkanN/A1.1.126
CUDA-3.5

Pros & cons summary


Recency 2 October 2012 12 November 2012
Chip lithography 32 nm 28 nm
Power consumption (TDP) 17 Watt 235 Watt

HD 7400G has 1282.4% lower power consumption.

Tesla K20X, on the other hand, has an age advantage of 1 month, and a 14.3% more advanced lithography process.

We couldn't decide between Radeon HD 7400G and Tesla K20X. We've got no test results to judge.

Be aware that Radeon HD 7400G is a notebook card while Tesla K20X is a workstation one.


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 Radeon HD 7400G
Radeon HD 7400G
NVIDIA Tesla K20X
Tesla K20X

Comparisons with similar GPUs

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Community ratings

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2.8 89 votes

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3.2 51 vote

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Questions & comments

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