Radeon Pro W6400 vs Pro V620

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Primary details

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

Place in the rankingnot rated264
Place by popularitynot in top-100not in top-100
Power efficiencyno data28.56
ArchitectureRDNA 2.0 (2020−2024)RDNA 2.0 (2020−2024)
GPU code nameNavi 21Navi 24
Market segmentWorkstationWorkstation
Release date4 November 2021 (3 years ago)19 January 2022 (2 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 cores4608768
Core clock speed1825 MHz2331 MHz
Boost clock speed2200 MHz2331 MHz
Number of transistors26,800 million5,400 million
Manufacturing process technology7 nm6 nm
Power consumption (TDP)300 Watt50 Watt
Texture fill rate633.6111.9
Floating-point processing power20.28 TFLOPS3.58 TFLOPS
ROPs12832
TMUs28848
Ray Tracing Cores7212

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 x4
Length267 mmno data
Width2-slot1-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 GB4 GB
Memory bus width256 Bit64 Bit
Memory clock speed2000 MHz1750 MHz
Memory bandwidth512.0 GB/s112.0 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 outputs2x 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 Model6.56.6
OpenGL4.64.6
OpenCL2.12.2
Vulkan1.21.3

Pros & cons summary


Recency 4 November 2021 19 January 2022
Maximum RAM amount 32 GB 4 GB
Chip lithography 7 nm 6 nm
Power consumption (TDP) 300 Watt 50 Watt

Pro V620 has a 700% higher maximum VRAM amount.

Pro W6400, on the other hand, has an age advantage of 2 months, a 16.7% more advanced lithography process, and 500% lower power consumption.

We couldn't decide between Radeon Pro V620 and Radeon Pro W6400. 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
AMD Radeon Pro W6400
Radeon Pro W6400

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

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5 1 vote

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4 28 votes

Rate Radeon Pro W6400 on a scale of 1 to 5:

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Questions & comments

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