Iris Plus Graphics 645 vs HD Graphics (Sandy Bridge)

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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
ArchitectureGen. 6 Sandy Bridge (2011)Generation 9.5 (2016−2020)
GPU code nameSandy BridgeCoffee Lake GT3e
Market segmentLaptopDesktop
Release date1 May 2011 (13 years ago)7 October 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 cores6384
Core clock speed350 MHz300 MHz
Boost clock speed1100 MHz1050 MHz
Manufacturing process technology32 nm14 nm+++
Power consumption (TDP)no data15 Watt
Texture fill rateno data50.40
Floating-point processing powerno data0.8064 TFLOPS
ROPsno data6
TMUsno data48

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).

Interfaceno dataRing Bus
Widthno dataIGP

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 typeno dataSystem Shared
Maximum RAM amountno dataSystem Shared
Memory bus width64/128 BitSystem Shared
Memory clock speedno dataSystem 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 Connectorsno dataPortable 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.

DirectX10.112 (12_1)
Shader Modelno data6.4
OpenGLno data4.6
OpenCLno data3.0
Vulkan-1.3

Pros & cons summary


Recency 1 May 2011 7 October 2019
Chip lithography 32 nm 14 nm

Iris Plus Graphics 645 has an age advantage of 8 years, and a 128.6% more advanced lithography process.

We couldn't decide between HD Graphics (Sandy Bridge) and Iris Plus Graphics 645. We've got no test results to judge.

Be aware that HD Graphics (Sandy Bridge) is a notebook 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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Intel HD Graphics (Sandy Bridge)
HD Graphics (Sandy Bridge)
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

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2.7 84 votes

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2.9 116 votes

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Questions & comments

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