Radeon RX 6400: specs and benchmarks
Aggregate performance score
Radeon RX 6400 provides acceptable gaming and benchmark performance at 18.60% of a leader's which is GeForce RTX 5090 D.
Contents
Summary
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 2 GHz are supplied, and together with 64 Bit memory interface this creates a bandwidth of 128.0 GB/s.
Compatibility-wise, this is a single-slot graphics 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 the ranking | 335 | |
| Place by popularity | not in top-100 | |
| Cost-effectiveness evaluation | 40.44 | |
| Power efficiency | 27.13 | of 100.00 (Radeon 890M) |
| Architecture | RDNA 2.0 (2020−2025) | |
| GPU code name | Navi 24 | |
| Market segment | Desktop | |
| Release date | 19 January 2022 (4 years ago) | |
| Launch price (MSRP) | $159 | of 34,999 (B200 SXM6) |
Cost-effectiveness evaluation
The higher the ratio, the better. We use the manufacturer's recommended prices.
Performance to price scatter graph
Currently popular graphics cards are shown for comparison.
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 cores | 768 | of 57344 (Rubin Ultra GPU) |
| Core clock speed | 1923 MHz | of 2670 MHz (Arc B580) |
| Boost clock speed | 2321 MHz | of 3130 MHz (Radeon RX 9060 XT 16 GB) |
| Number of transistors | 5,400 million | of 670,000 million (Rubin Ultra GPU) |
| Manufacturing process technology | 6 nm | of 2 nm (Radeon Instinct MI455X) |
| Power consumption (TDP) | 53 Watt | of 3600 Watt (Rubin Ultra GPU) |
| Texture fill rate | 111.4 | of 4,062.5 (Rubin Ultra GPU) |
| Floating-point processing power | 3.565 TFLOPS | of 260 (Rubin Ultra GPU) |
| ROPs | 32 | of 512 (Moore Threads MTT S4000) |
| TMUs | 48 | of 1792 (Rubin Ultra GPU) |
| Ray Tracing Cores | 12 | of 188 (RTX PRO 6000 Blackwell Server) |
| L0 Cache | 192 KB | of 3 MB (Radeon RX 7900 XTX) |
| L1 Cache | 256 KB | of 112 MB (Rubin Ultra GPU) |
| L2 Cache | 1024 KB | of 408 MB (Data Center GPU Max 1350) |
| L3 Cache | 16 MB | of 256 MB (Radeon Instinct MI300X) |
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).
| Interface | PCIe 4.0 x4 | |
| Width | 1-slot | |
| Supplementary power connectors | None |
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 type | GDDR6 | |
| Maximum RAM amount | 4 GB | of 432 GB (Radeon Instinct MI455X) |
| Memory bus width | 64 Bit | of 32768 Bit (Rubin Ultra GPU) |
| Memory clock speed | 2000 MHz | of 16000 GB/s (GeForce RTX 4050 Mobile) |
| Memory bandwidth | 128.0 GB/s | of 3,277 GB/s (Radeon Instinct MI250X) |
| Resizable BAR | + |
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 Connectors | 1x HDMI 2.1, 1x DisplayPort 1.4a | |
| HDMI | + |
API and SDK support
APIs supported by Radeon RX 6400, sometimes including their particular versions.
| DirectX | 12 Ultimate (12_2) | |
| Shader Model | 6.7 | |
| OpenGL | 4.6 | |
| OpenCL | 2.2 | |
| Vulkan | 1.3 |
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 score.
Passmark
This is the most ubiquitous GPU benchmark. 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.
Send your test results of Radeon RX 6400.
NVIDIA equivalent
According to our data, the closest NVIDIA alternative to Radeon RX 6400 is GeForce GTX 1650, which is faster by 2% and higher by 5 positions in our ranking.
Here are some closest NVIDIA rivals to Radeon RX 6400:
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.
