Radeon RX 6300M vs HD Graphics 620

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Primary details

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

Place in the ranking834not rated
Place by popularity59not in top-100
Power efficiency11.64no data
ArchitectureGeneration 9.5 (2016−2020)RDNA 2.0 (2020−2024)
GPU code nameKaby Lake GT2Navi 24
Market segmentDesktopLaptop
Release date30 August 2016 (8 years ago)4 January 2022 (2 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 cores192768
Core clock speed300 MHz2000 MHz
Boost clock speed1000 MHz2400 MHz
Number of transistors189 million5,400 million
Manufacturing process technology14 nm++6 nm
Power consumption (TDP)15 Watt35 Watt
Texture fill rate24.00115.2
Floating-point processing power0.384 TFLOPS3.686 TFLOPS
ROPs332
TMUs2448
Ray Tracing Coresno data12

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 4.0 x4
WidthIGPno data
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 typeDDR3L/LPDDR3/LPDDR4GDDR6
Maximum RAM amount32 GB2 GB
Memory bus widthSystem Shared32 Bit
Memory clock speedSystem Shared2250 MHz
Memory bandwidthno data72 GB/s
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+no data

API compatibility

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

DirectX12 (12_1)12 Ultimate (12_2)
Shader Model6.46.6
OpenGL4.64.6
OpenCL3.02.2
Vulkan+1.3

Pros & cons summary


Recency 30 August 2016 4 January 2022
Maximum RAM amount 32 GB 2 GB
Chip lithography 14 nm 6 nm
Power consumption (TDP) 15 Watt 35 Watt

HD Graphics 620 has a 1500% higher maximum VRAM amount, and 133.3% lower power consumption.

RX 6300M, on the other hand, has an age advantage of 5 years, and a 133.3% more advanced lithography process.

We couldn't decide between HD Graphics 620 and Radeon RX 6300M. We've got no test results to judge.

Be aware that HD Graphics 620 is a desktop card while Radeon RX 6300M 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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Intel HD Graphics 620
HD Graphics 620
AMD Radeon RX 6300M
Radeon RX 6300M

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.


3.1 2613 votes

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3.5 11 votes

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Questions & comments

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