RTX A400 vs Radeon HD 3830

Primary details

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

Place in performance rankingnot ratednot rated
Place by popularitynot in top-100not in top-100
ArchitectureTeraScale (2005−2013)Ampere (2020−2022)
GPU code nameRV670GA107
Market segmentDesktopDesktop
Release date1 April 2008 (16 years ago)16 April 2024 (less than a year ago)

Detailed specifications

General performance parameters such as number of shaders, GPU core base clock and boost clock speeds, manufacturing process, texturing and calculation speed. These parameters indirectly speak of performance, but for precise assessment you have to consider their benchmark and gaming test results. Note that power consumption of some graphics cards can well exceed their nominal TDP, especially when overclocked.

Pipelines / CUDA cores320768
Core clock speed668 MHzno data
Boost clock speedno data1762 MHz
Number of transistors666 million8,700 million
Manufacturing process technology55 nm8 nm
Power consumption (TDP)75 Watt50 Watt
Texture fill rate10.6942.29
Floating-point performance427.5 gflopsno data

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 2.0 x16PCIe 4.0 x8
Lengthno data163 mm
Width2-slot1-slot
Supplementary power connectors1x 6-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 typeGDDR3GDDR6
Maximum RAM amount256 MB4 GB
Memory bus width128 Bit64 Bit
Memory clock speed1656 MHz12 GB/s
Memory bandwidth26.5 GB/s96 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 graphics and general-purpose computing APIs, including their specific versions.

DirectX10.1 (10_1)12 Ultimate (12_2)
Shader Model4.16.7
OpenGL3.34.6
OpenCLN/A3.0
VulkanN/A1.3
CUDAno data8.6

Pros & cons summary


Recency 1 April 2008 16 April 2024
Maximum RAM amount 256 MB 4 GB
Chip lithography 55 nm 8 nm
Power consumption (TDP) 75 Watt 50 Watt

We couldn't decide between Radeon HD 3830 and RTX A400. 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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ATI Radeon HD 3830
Radeon HD 3830
NVIDIA RTX A400
RTX A400

Comparisons with similar GPUs

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Community ratings

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3.5 2 votes

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5 1 vote

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Questions & comments

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