Radeon Vega 3 Efficient vs R5 M420

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Primary details

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

Place in the ranking1033not rated
Place by popularitynot in top-100not in top-100
ArchitectureGCN 1.0 (2011−2020)GCN 5.0 (2017−2020)
GPU code nameJetRaven
Market segmentLaptopDesktop
Release date15 May 2016 (8 years ago)26 May 2018 (6 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 cores320192
Core clock speed780 MHz300 MHz
Boost clock speed850 MHz1000 MHz
Number of transistors690 million4,940 million
Manufacturing process technology28 nm14 nm
Power consumption (TDP)no data15 Watt
Texture fill rate17.0012.00
Floating-point processing power0.544 TFLOPS0.384 TFLOPS
ROPs84
TMUs2012

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).

InterfacePCIe 3.0 x8IGP
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 typeDDR3System Shared
Maximum RAM amount4 GBSystem Shared
Memory bus width64 BitSystem Shared
Memory clock speed1000 MHzSystem Shared
Memory bandwidth16 GB/sno data
Shared memory-no data

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 outputsNo outputs

API compatibility

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

DirectX12 (11_1)12 (12_1)
Shader Model5.16.4
OpenGL4.64.6
OpenCL1.22.0
Vulkan1.2.1311.2.131

Pros & cons summary


Recency 15 May 2016 26 May 2018
Chip lithography 28 nm 14 nm

Vega 3 Efficient has an age advantage of 2 years, and a 100% more advanced lithography process.

We couldn't decide between Radeon R5 M420 and Radeon Vega 3 Efficient. We've got no test results to judge.

Be aware that Radeon R5 M420 is a notebook card while Radeon Vega 3 Efficient 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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AMD Radeon R5 M420
Radeon R5 M420
AMD Radeon Vega 3 Efficient
Radeon Vega 3 Efficient

Comparisons with similar GPUs

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Community ratings

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2.9 106 votes

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3.4 44 votes

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Questions & comments

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