Radeon Graphics 512SP vs Iris Plus Graphics 645

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Primary details

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

Place in the ranking665not rated
Place by popularitynot in top-100not in top-100
Power efficiency20.43no data
ArchitectureGeneration 9.5 (2016−2020)GCN 5.1 (2018−2022)
GPU code nameCoffee Lake GT3eRenoir
Market segmentLaptopDesktop
Release date7 October 2019 (5 years ago)7 March 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 cores384512
Core clock speed300 MHz400 MHz
Boost clock speed1050 MHz2100 MHz
Number of transistorsno data9,800 million
Manufacturing process technology14 nm+++7 nm
Power consumption (TDP)15 Watt15 Watt
Texture fill rate50.4067.20
Floating-point processing power0.8064 TFLOPS2.15 TFLOPS
ROPs68
TMUs4832

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 BusIGP
Widthno dataIGP
Supplementary power connectorsno dataNone

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 SharedSystem Shared
Maximum RAM amountSystem SharedSystem 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 DependentMotherboard Dependent

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 (12_1)
Shader Model6.46.7 (6.4)
OpenGL4.64.6
OpenCL3.02.1
Vulkan1.31.3

Pros & cons summary


Recency 7 October 2019 7 March 2020
Chip lithography 14 nm 7 nm

Graphics 512SP has an age advantage of 5 months, and a 100% more advanced lithography process.

We couldn't decide between Iris Plus Graphics 645 and Radeon Graphics 512SP. We've got no test results to judge.

Be aware that Iris Plus Graphics 645 is a notebook card while Radeon Graphics 512SP is a desktop one.


Should you still have questions concerning choice between the reviewed GPUs, ask them in Comments section, and we shall answer.

Vote for your favorite

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Intel Iris Plus Graphics 645
Iris Plus Graphics 645
AMD Radeon Graphics 512SP
Radeon Graphics 512SP

Comparisons with similar GPUs

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Community ratings

Here you can see the user ratings of the compared graphics cards, as well as rate them yourself.


2.9 121 vote

Rate Iris Plus Graphics 645 on a scale of 1 to 5:

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1.9 84 votes

Rate Radeon Graphics 512SP on a scale of 1 to 5:

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Questions & comments

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