Tesla K40t vs Iris Graphics 540

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Primary details

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

Place in the ranking738not rated
Place by popularitynot in top-100not in top-100
Power efficiency15.10no data
ArchitectureGeneration 9.0 (2015−2016)Kepler (2012−2018)
GPU code nameSkylake GT3eGK110B
Market segmentDesktopWorkstation
Release date1 September 2015 (9 years ago)22 November 2013 (10 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 cores3842880
Core clock speed300 MHz745 MHz
Boost clock speed1000 MHz876 MHz
Number of transistors189 million7,080 million
Manufacturing process technology14 nm+28 nm
Power consumption (TDP)15 Watt245 Watt
Texture fill rate48.00210.2
Floating-point processing power0.768 TFLOPS5.046 TFLOPS
ROPs648
TMUs48240

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).

InterfaceRing BusPCIe 3.0 x16
Lengthno data267 mm
WidthIGP2-slot

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 Shared12 GB
Memory bus widthSystem Shared384 Bit
Memory clock speedSystem Shared1502 MHz
Memory bandwidthno data288.4 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 ConnectorsPortable Device DependentNo outputs

Supported technologies

Supported technological solutions. This information will prove useful if you need some particular technology for your purposes.

Quick Sync+no data

API compatibility

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

DirectX12 (12_1)12 (11_1)
Shader Model6.45.1
OpenGL4.64.6
OpenCL3.01.2
Vulkan1.31.1.126
CUDA-3.5

Pros & cons summary


Recency 1 September 2015 22 November 2013
Chip lithography 14 nm 28 nm
Power consumption (TDP) 15 Watt 245 Watt

Iris Graphics 540 has an age advantage of 1 year, a 100% more advanced lithography process, and 1533.3% lower power consumption.

We couldn't decide between Iris Graphics 540 and Tesla K40t. We've got no test results to judge.

Be aware that Iris Graphics 540 is a desktop card while Tesla K40t 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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Intel Iris Graphics 540
Iris Graphics 540
NVIDIA Tesla K40t
Tesla K40t

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Community ratings

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