RTX 4000 SFF Ada Generation vs Radeon Pro V620

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Primary details

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

Place in the rankingnot rated48
Place by popularitynot in top-100not in top-100
Power efficiencyno data52.86
ArchitectureRDNA 2.0 (2020−2024)Ada Lovelace (2022−2024)
GPU code nameNavi 21AD104
Market segmentWorkstationWorkstation
Release date4 November 2021 (3 years ago)21 March 2023 (1 year 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 cores46086144
Core clock speed1825 MHz720 MHz
Boost clock speed2200 MHz1560 MHz
Number of transistors26,800 million35,800 million
Manufacturing process technology7 nm5 nm
Power consumption (TDP)300 Watt70 Watt
Texture fill rate633.6299.5
Floating-point processing power20.28 TFLOPS19.17 TFLOPS
ROPs12880
TMUs288192
Tensor Coresno data192
Ray Tracing Cores7248

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 4.0 x16PCIe 4.0 x16
Length267 mm168 mm
Width2-slot2-slot
Supplementary power connectors2x 8-pinNone

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 typeGDDR6GDDR6
Maximum RAM amount32 GB20 GB
Memory bus width256 Bit160 Bit
Memory clock speed2000 MHz1750 MHz
Memory bandwidth512.0 GB/s280.0 GB/s

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 outputs4x mini-DisplayPort 1.4a

API compatibility

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

DirectX12 Ultimate (12_2)12 Ultimate (12_2)
Shader Model6.56.8
OpenGL4.64.6
OpenCL2.13.0
Vulkan1.21.3
CUDA-8.9

Pros & cons summary


Recency 4 November 2021 21 March 2023
Maximum RAM amount 32 GB 20 GB
Chip lithography 7 nm 5 nm
Power consumption (TDP) 300 Watt 70 Watt

Pro V620 has a 60% higher maximum VRAM amount.

RTX 4000 SFF Ada Generation, on the other hand, has an age advantage of 1 year, a 40% more advanced lithography process, and 328.6% lower power consumption.

We couldn't decide between Radeon Pro V620 and RTX 4000 SFF Ada Generation. We've got no test results to judge.


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 Pro V620
Radeon Pro V620
NVIDIA RTX 4000 SFF Ada Generation
RTX 4000 SFF Ada Generation

Comparisons with similar GPUs

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Community ratings

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5 1 vote

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4.3 49 votes

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Questions & comments

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