Radeon 620 vs ATI 3100 IGP

Primary details

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

Place in the rankingnot rated845
Place by popularitynot in top-100not in top-100
Power efficiencyno data3.21
ArchitectureTeraScale (2005−2013)GCN 3.0 (2014−2019)
GPU code nameRS780Polaris 24
Market segmentDesktopLaptop
Release date15 August 2008 (16 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 cores40384
Core clock speed344 MHz730 MHz
Boost clock speedno data1024 MHz
Number of transistors180 million1,550 million
Manufacturing process technology65 nm28 nm
Power consumption (TDP)no data50 Watt
Texture fill rate1.37624.58
Floating-point processing power0.02752 TFLOPS0.7864 TFLOPS
ROPs48
TMUs424

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 1.0 x16PCIe 3.0 x8
WidthIGPno data
Supplementary power connectorsNoneNone

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 SharedDDR3
Maximum RAM amountSystem Shared2 GB
Memory bus widthSystem Shared64 Bit
Memory clock speedSystem Shared900 MHz
Memory bandwidthno data14.4 GB/s
Shared memoryno 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.

DirectX10.0 (10_0)12 (12_0)
Shader Model4.16.3
OpenGL3.34.6
OpenCL1.02.0
VulkanN/A1.2.131

Pros & cons summary


Recency 15 August 2008 13 May 2019
Chip lithography 65 nm 28 nm

Radeon 620 has an age advantage of 10 years, and a 132.1% more advanced lithography process.

We couldn't decide between Radeon 3100 IGP and Radeon 620. We've got no test results to judge.

Be aware that Radeon 3100 IGP 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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ATI Radeon 3100 IGP
Radeon 3100 IGP
AMD Radeon 620
Radeon 620

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 11 votes

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3.2 65 votes

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Questions & comments

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