Iris Xe Graphics G4 vs Iris Plus Graphics 640

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Primary details

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

Place in the ranking699not rated
Place by popularitynot in top-100not in top-100
Power efficiency17.79no data
ArchitectureGeneration 9.5 (2016−2020)Generation 12.1 (2020−2021)
GPU code nameKaby Lake GT3eTiger Lake GT2
Market segmentLaptopLaptop
Release date3 January 2017 (7 years ago)2 September 2020 (4 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 cores384384
Core clock speed300 MHz300 MHz
Boost clock speed1100 MHz1100 MHz
Number of transistors189 millionno data
Manufacturing process technology14 nm++10 nm
Power consumption (TDP)15 Watt15 Watt
Texture fill rate52.8026.40
Floating-point processing power0.8448 TFLOPS0.8448 TFLOPS
ROPs612
TMUs4824

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 x1

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 typeDDR3L/LPDDR3/DDR4System Shared
Maximum RAM amount32 GBSystem Shared
Memory bus widthSystem SharedSystem Shared
Memory clock speedSystem SharedSystem Shared
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++

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
OpenCL3.03.0
Vulkan1.31.2

Pros & cons summary


Recency 3 January 2017 2 September 2020
Chip lithography 14 nm 10 nm

Iris Xe Graphics G4 has an age advantage of 3 years, and a 40% more advanced lithography process.

We couldn't decide between Iris Plus Graphics 640 and Iris Xe Graphics G4. 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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Intel Iris Plus Graphics 640
Iris Plus Graphics 640
Intel Iris Xe Graphics G4
Iris Xe Graphics G4

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.


3.3 304 votes

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3.2 209 votes

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Questions & comments

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