Iris Plus Graphics 645 vs Radeon R6 Graphics

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Primary details

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

Place in the rankingnot rated662
Place by popularitynot in top-100not in top-100
ArchitectureGCN 2.0 (2013−2017)Gen. 9.5 Coffee Lake (2019)
GPU code nameSpectre LiteKaby Lake GT3e
Market segmentDesktopLaptop
Release date17 September 2014 (10 years ago)10 July 2019 (5 years ago)

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 cores38448
Core clock speed533 MHz300 MHz
Boost clock speed600 MHz1150 MHz
Number of transistors2,410 millionno data
Manufacturing process technology28 nm14 nm
Power consumption (TDP)15 Watt15 Watt
Texture fill rate14.4050.40
Floating-point processing power0.4608 gflops0.8064 gflops

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).

InterfaceIGPPCIe 3.0 x1
WidthIGPno 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 typeSystem SharedDDR3, DDR4
Maximum RAM amountSystem SharedSystem Shared
Memory bus widthSystem Sharedno data
Memory clock speedSystem Sharedno data
Shared memoryno data+

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

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 graphics and general-purpose computing APIs, including their specific versions.

DirectX12 (12_0)12 (12_1)
Shader Model6.06.4
OpenGL4.64.6
OpenCL2.02.1
Vulkan1.2.1311.1.103

Pros & cons summary


Recency 17 September 2014 10 July 2019
Chip lithography 28 nm 14 nm

Iris Plus Graphics 645 has an age advantage of 4 years, and a 100% more advanced lithography process.

We couldn't decide between Radeon R6 Graphics and Iris Plus Graphics 645. We've got no test results to judge.

Be aware that Radeon R6 Graphics is a desktop card while Iris Plus Graphics 645 is a notebook 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 R6 Graphics
Radeon R6 Graphics
Intel Iris Plus Graphics 645
Iris Plus Graphics 645

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.


3.2 147 votes

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2.9 114 votes

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Questions & comments

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