Radeon 620 vs R5 M445

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Primary details

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

Place in the rankingnot rated844
Place by popularitynot in top-100not in top-100
Power efficiencyno data3.35
ArchitectureGCN 3.0 (2014−2019)GCN 3.0 (2014−2019)
GPU code nameMesoPolaris 24
Market segmentDesktopLaptop
Release date2016 (8 years ago)13 May 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 cores384384
Core clock speed920 MHz730 MHz
Boost clock speed980 MHz1024 MHz
Number of transistors1,550 million1,550 million
Manufacturing process technology28 nm28 nm
Power consumption (TDP)no data50 Watt
Texture fill rate22.0824.58
Floating-point processing powerno data0.7864 TFLOPS
ROPs88
TMUs2424

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 x8PCIe 3.0 x8
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 typeGDDR5DDR3
Maximum RAM amount4 GB2 GB
Memory bus width64 Bit64 Bit
Memory clock speed4 GB/s900 MHz
Memory bandwidth32 GB/s14.4 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

API compatibility

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

DirectX12 (12_0)12 (12_0)
Shader Model6.56.3
OpenGL4.64.6
OpenCL2.12.0
Vulkan1.2.1701.2.131

Pros & cons summary


Maximum RAM amount 4 GB 2 GB

R5 M445 has a 100% higher maximum VRAM amount.

We couldn't decide between Radeon R5 M445 and Radeon 620. We've got no test results to judge.

Be aware that Radeon R5 M445 is a desktop card while Radeon 620 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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AMD Radeon R5 M445
Radeon R5 M445
AMD Radeon 620
Radeon 620

Comparisons with similar GPUs

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Community ratings

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Questions & comments

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