Radeon Pro V620 vs GeForce 8400 GS

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Primary details

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

Place in the ranking1252not rated
Place by popularitynot in top-100not in top-100
Power efficiency0.70no data
ArchitectureTesla (2006−2010)RDNA 2.0 (2020−2024)
GPU code nameG86Navi 21
Market segmentDesktopWorkstation
Release date17 April 2007 (17 years ago)4 November 2021 (3 years ago)
Launch price (MSRP)$29.99 no data

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 cores164608
Core clock speed459 MHz1825 MHz
Boost clock speedno data2200 MHz
Number of transistors210 million26,800 million
Manufacturing process technology80 nm7 nm
Power consumption (TDP)40 Watt300 Watt
Texture fill rate3.672633.6
Floating-point processing power0.02938 TFLOPS20.28 TFLOPS
ROPs4128
TMUs8288
Ray Tracing Coresno data72

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 4.0 x16
Length170 mm267 mm
Width1-slot2-slot
Supplementary power connectorsNone2x 8-pin
SLI options+-

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 typeDDR2GDDR6
Maximum RAM amount256 MB32 GB
Standard memory config per GPU256 MBno data
Memory bus width64 Bit256 Bit
Memory clock speed400 MHz2000 MHz
Memory bandwidth6.4 GB/s512.0 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 Connectors1x DVI, 1x VGA, 1x S-VideoNo outputs

API compatibility

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

DirectX11.1 (10_0)12 Ultimate (12_2)
Shader Model4.06.5
OpenGL2.14.6
OpenCL1.12.1
VulkanN/A1.2
CUDA1.1-

Pros & cons summary


Recency 17 April 2007 4 November 2021
Maximum RAM amount 256 MB 32 GB
Chip lithography 80 nm 7 nm
Power consumption (TDP) 40 Watt 300 Watt

8400 GS has 650% lower power consumption.

Pro V620, on the other hand, has an age advantage of 14 years, a 12700% higher maximum VRAM amount, and a 1042.9% more advanced lithography process.

We couldn't decide between GeForce 8400 GS and Radeon Pro V620. We've got no test results to judge.

Be aware that GeForce 8400 GS is a desktop card while Radeon Pro V620 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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NVIDIA GeForce 8400 GS
GeForce 8400 GS
AMD Radeon Pro V620
Radeon Pro V620

Comparisons with similar GPUs

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Community ratings

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Questions & comments

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