ATI Mobility Radeon HD 3400 vs UHD Graphics 620

Primary details

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

Place in the ranking802not rated
Place by popularity24not in top-100
Power efficiency12.36no data
ArchitectureGeneration 9.5 (2016−2020)RV6xx (2008−2010)
GPU code nameKaby Lake GT2no data
Market segmentDesktopLaptop
Release date1 September 2017 (7 years ago)1 August 2010 (14 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 cores192no data
Core clock speed300 MHzno data
Boost clock speed1000 MHzno data
Number of transistors189 millionno data
Manufacturing process technology14 nm++no data
Power consumption (TDP)15 Wattno data
Texture fill rate24.00no data
Floating-point processing power0.384 TFLOPSno data
ROPs3no data
TMUs24no data

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 Busno data
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 typeLPDDR3/DDR4no data
Maximum RAM amount32 GBno data
Memory bus widthSystem Sharedno data
Memory clock speedSystem Sharedno data
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 data

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)no data
Shader Model6.4no data
OpenGL4.6no data
OpenCL3.0no data
Vulkan1.3-

Pros & cons summary


Recency 1 September 2017 1 August 2010

UHD Graphics 620 has an age advantage of 7 years.

We couldn't decide between UHD Graphics 620 and Mobility Radeon HD 3400. We've got no test results to judge.

Be aware that UHD Graphics 620 is a desktop card while Mobility Radeon HD 3400 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 UHD Graphics 620
UHD Graphics 620
ATI Mobility Radeon HD 3400
Mobility Radeon HD 3400

Comparisons with similar GPUs

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Community ratings

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3 4333 votes

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3.4 48 votes

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Questions & comments

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