Radeon RX 6400: specs and benchmarks


Aggregate performance score

Radeon RX 6400 provides acceptable gaming and benchmark performance at 19.54% of a leader's which is GeForce RTX 4090.


AMD started Radeon RX 6400 sales 19 January 2022 at a recommended price of $159 . This is a desktop graphics card based on a RDNA 2.0 architecture and made with 6 nm manufacturing process. It is primarily aimed at gamer market. 4 GB of GDDR6 memory clocked at 16 GB/s are supplied, and together with 64 Bit memory interface this creates a bandwidth of 128.0 GB/s.

Compatibility-wise, this is single-slot card attached via PCIe 4.0 x4 interface. No additional power connector is required, and power consumption is at 53 Watt.

Primary details

Some basic facts about Radeon RX 6400: architecture, market segment, release date etc.

Place in performance ranking268
Place by popularitynot in top-100
Cost-effectiveness evaluation12.37
ArchitectureRDNA 2.0 (2020−2022)
GPU code nameNavi 24
Market segmentDesktop
Release date19 January 2022 (2 years ago)
Launch price (MSRP)$159
Current price$376 (2.4x MSRP)of 168889 (A100 PCIe 80 GB)

Cost-effectiveness evaluation

Performance to price ratio. The higher, the better.

Detailed specifications

Radeon RX 6400's specs such as number of shaders, GPU base clock, manufacturing process, texturing and calculation speed. These parameters indirectly speak of Radeon RX 6400's performance, but for precise assessment you have to consider its benchmark and gaming test results.

Pipelines / CUDA cores768of 20480 (Data Center GPU Max NEXT)
Boost clock speed2321 MHzof 3599 (Radeon RX 7990 XTX)
Number of transistors5,400 millionof 14400 (GeForce GTX 1070 SLI Mobile)
Manufacturing process technology6 nmof 4 (Radeon 780M)
Power consumption (TDP)53 Wattof 2400 (Data Center GPU Max Subsystem)
Texture fill rate111.4of 969.9 (H100 SXM5 96 GB)

Form factor & compatibility

This section provides details about the physical dimensions of Radeon RX 6400 and its compatibility with other computer components. This information is useful when selecting a computer configuration or upgrading an existing one. For desktop graphics cards, it includes details about the interface and bus (for motherboard compatibility) and additional power connectors (for power supply compatibility).

InterfacePCIe 4.0 x4
Supplementary power connectorsNone

VRAM capacity and type

Parameters of memory installed on Radeon RX 6400: its type, size, bus, clock and resulting bandwidth. Note that GPUs integrated into processors have no dedicated memory and use a shared part of system RAM instead.

Memory typeGDDR6
Maximum RAM amount4 GBof 192 (Radeon Instinct MI300X)
Memory bus width64 Bitof 8192 (Radeon Instinct MI250X)
Memory clock speed16 GB/sof 23000 (GeForce RTX 4080 SUPER)
Memory bandwidth128.0 GB/sof 3276 (Aldebaran)

Connectivity and outputs

Types and number of video connectors present on Radeon RX 6400. As a rule, this section is relevant only for desktop reference graphics cards, since for notebook ones the availability of certain video outputs depends on the laptop model, while non-reference desktop models can (though not necessarily will) bear a different set of video ports.

Display Connectors1x HDMI 2.1, 1x DisplayPort 1.4a

API compatibility

APIs supported by Radeon RX 6400, sometimes including their particular versions.

DirectX12 Ultimate (12_2)
Shader Model6.6

Benchmark performance

Synthetic benchmark performance of Radeon RX 6400. The combined score is measured on a 0-100 point scale.

Combined synthetic benchmark score

This is our combined benchmark performance score. We are regularly improving our combining algorithms, but if you find some perceived inconsistencies, feel free to speak up in comments section, we usually fix problems quickly.

RX 6400 19.54


This is the most ubiquitous GPU benchmark, part of Passmark PerformanceTest suite. It gives the graphics card a thorough evaluation under various types of load, providing four separate benchmarks for Direct3D versions 9, 10, 11 and 12 (the last being done in 4K resolution if possible), and few more tests engaging DirectCompute capabilities.

Benchmark coverage: 25%

RX 6400 7550

Gaming performance

Let's see how good Radeon RX 6400 is for gaming. Particular gaming benchmark results are measured in frames per second. Comparisons with game system requirements are included, but remember that sometimes official requirements may reflect reality inaccurately.

Closest competitors

Radeon RX 6400's performance relative to its closest rivals among desktop graphics cards.

T1000 8 GB 100.72
Ellesmere 100.26
Radeon RX 6400 100
CMP 40HX 89.76

NVIDIA equivalent

According to our data, the closest NVIDIA alternative to Radeon RX 6400 is T1000 8 GB, which is faster by 1% and higher by 3 positions in our ranking.

Here are some closest NVIDIA rivals to Radeon RX 6400:

T1000 101.69
T1000 8 GB 100.72
Radeon RX 6400 100
CMP 40HX 89.76
T600 85.57
P106-100 84.75

Similar GPUs

Here is our recommendation of several graphics cards that are more or less close in performance to the one reviewed.

Recommended processors

These processors are most commonly used with Radeon RX 6400 according to our statistics.

Community ratings

Here you can see the user rating of the graphics card, as well as rate it yourself.

4 1701 vote

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Questions & comments

Here you can ask a question about Radeon RX 6400, agree or disagree with our judgements, or report an error or mismatch.