GRID A100B 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 ranking1124not rated
Place by popularitynot in top-100not in top-100
Power efficiency1.74no data
ArchitectureTeraScale 2 (2009−2015)Ampere (2020−2024)
GPU code nameSumoGA100
Market segmentDesktopWorkstation
Release date7 December 2011 (12 years ago)14 May 2020 (4 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 cores4006912
Core clock speed444 MHz900 MHz
Boost clock speedno data1005 MHz
Number of transistors1,178 million54,200 million
Manufacturing process technology32 nm7 nm
Power consumption (TDP)35 Watt400 Watt
Texture fill rate8.880434.2
Floating-point processing power0.3552 TFLOPS13.89 TFLOPS
ROPs8192
TMUs20432
Tensor Coresno data432

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
WidthIGPIGP
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 typeSystem SharedHBM2e
Maximum RAM amountSystem Shared48 GB
Memory bus widthSystem Shared6144 Bit
Memory clock speedSystem Shared1215 MHz
Memory bandwidthno data1,866 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 Model5.06.5
OpenGL4.44.6
OpenCL1.22.0
VulkanN/A1.2
CUDA-8.0

Pros & cons summary


Recency 7 December 2011 14 May 2020
Chip lithography 32 nm 7 nm
Power consumption (TDP) 35 Watt 400 Watt

HD 6620G has 1042.9% lower power consumption.

GRID A100B, on the other hand, has an age advantage of 8 years, and a 357.1% more advanced lithography process.

We couldn't decide between Radeon HD 6620G and GRID A100B. We've got no test results to judge.

Be aware that Radeon HD 6620G is a desktop card while GRID A100B 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 GRID A100B
GRID A100B

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Community ratings

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2.6 88 votes

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Questions & comments

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