Iris Plus Graphics 645 vs Tesla P100 PCIe 16 GB

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Primary details

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

Place in the rankingnot rated658
Place by popularitynot in top-100not in top-100
Power efficiencyno data20.50
ArchitecturePascal (2016−2021)Generation 9.5 (2016−2020)
GPU code nameGP100Coffee Lake GT3e
Market segmentWorkstationDesktop
Release date20 June 2016 (8 years ago)7 October 2019 (5 years ago)
Launch price (MSRP)$5,699 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 cores3584384
Core clock speed1190 MHz300 MHz
Boost clock speed1329 MHz1050 MHz
Number of transistors15,300 millionno data
Manufacturing process technology16 nm14 nm+++
Power consumption (TDP)250 Watt15 Watt
Texture fill rate297.750.40
Floating-point processing power9.526 TFLOPS0.8064 TFLOPS
ROPs966
TMUs22448

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 x16Ring Bus
Length267 mmno data
Width2-slotIGP
Supplementary power connectors1x 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 typeHBM2System Shared
Maximum RAM amount16 GBSystem Shared
Memory bus width4096 BitSystem Shared
Memory clock speed715 MHzSystem Shared
Memory bandwidth732.2 GB/sno data
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 outputsPortable Device Dependent

Supported technologies

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

Quick Syncno data+

API compatibility

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

DirectX12 (12_1)12 (12_1)
Shader Model6.46.4
OpenGL4.64.6
OpenCL1.23.0
Vulkan1.2.1311.3
CUDA6.0-

Pros & cons summary


Recency 20 June 2016 7 October 2019
Chip lithography 16 nm 14 nm
Power consumption (TDP) 250 Watt 15 Watt

Iris Plus Graphics 645 has an age advantage of 3 years, a 14.3% more advanced lithography process, and 1566.7% lower power consumption.

We couldn't decide between Tesla P100 PCIe 16 GB and Iris Plus Graphics 645. We've got no test results to judge.

Be aware that Tesla P100 PCIe 16 GB is a workstation graphics card while Iris Plus Graphics 645 is a desktop 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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NVIDIA Tesla P100 PCIe 16 GB
Tesla P100 PCIe 16 GB
Intel Iris Plus Graphics 645
Iris Plus Graphics 645

Comparisons with similar GPUs

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Community ratings

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3.8 95 votes

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2.9 116 votes

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