A16 PCIe vs Radeon HD 6620G

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Primary details

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

Place in the ranking1123not rated
Place by popularitynot in top-100not in top-100
Power efficiency1.74no data
ArchitectureTeraScale 2 (2009−2015)Ampere (2020−2024)
GPU code nameSumoGA107
Market segmentDesktopWorkstation
Release date7 December 2011 (12 years ago)12 April 2021 (3 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 cores4002560
Core clock speed444 MHz885 MHz
Boost clock speedno data1695 MHz
Number of transistors1,178 million17,400 million
Manufacturing process technology32 nm8 nm
Power consumption (TDP)35 Watt250 Watt
Texture fill rate8.880135.6
Floating-point processing power0.3552 TFLOPS8.678 TFLOPS
ROPs848
TMUs2080
Tensor Coresno data80
Ray Tracing Coresno data20

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).

InterfaceIGPPCIe 4.0 x16
Lengthno data267 mm
WidthIGP2-slot
Supplementary power connectorsno data8-pin EPS

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 SharedGDDR6
Maximum RAM amountSystem Shared16 GB
Memory bus widthSystem Shared128 Bit
Memory clock speedSystem Shared1812 MHz
Memory bandwidthno data231.9 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 ConnectorsNo outputsNo outputs

API compatibility

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

DirectX11.2 (11_0)12 Ultimate (12_2)
Shader Model5.06.6
OpenGL4.44.6
OpenCL1.23.0
VulkanN/A1.2
CUDA-8.6

Pros & cons summary


Recency 7 December 2011 12 April 2021
Chip lithography 32 nm 8 nm
Power consumption (TDP) 35 Watt 250 Watt

HD 6620G has 614.3% lower power consumption.

A16 PCIe, on the other hand, has an age advantage of 9 years, and a 300% more advanced lithography process.

We couldn't decide between Radeon HD 6620G and A16 PCIe. We've got no test results to judge.

Be aware that Radeon HD 6620G is a desktop card while A16 PCIe is a workstation 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 HD 6620G
Radeon HD 6620G
NVIDIA A16 PCIe
A16 PCIe

Comparisons with similar GPUs

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Community ratings

Here you can see the user ratings of the compared graphics cards, as well as rate them yourself.


2.5 86 votes

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4.6 442 votes

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Questions & comments

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