Radeon RX 6400
AMD
G3D Mark
7,728
MSRP
$159
AVG Price
$139
Performance Spectrum - GPU
About G3D Mark
G3D Mark is a standard benchmark that measures graphics performance in real-world gaming scenarios. It simplifies comparing cards from different brands, where higher scores directly correlate with better fps and smoother gaming experiences.
Overview
The Radeon RX 6400 is manufactured by AMD. It was released in January 19 2022. It features the RDNA 2.0 architecture. The core clock ranges from 1923 MHz to 2321 MHz. It has 768 shading units. The thermal design power (TDP) is 53W. Manufactured using 6 nm process technology. It features 12 dedicated ray tracing cores for enhanced lighting effects. G3D Mark benchmark score: 7,728 points. Launch price was $159.
Value Upgrade Path
This is the official ChipVERSUS Value Rating, comparing raw performance (G3D Mark) per dollar. Components placed above yours deliver better value for money.
Avg price is the current average price collected from markets across the web.
Performance Per Dollar Radeon RX 6400
FPS Benchmarks
Predicted performance for Radeon RX 6400 across popular games. Tested paired with Ryzen 7 7800X3D to isolate GPU performance.
Path of Exile 2
Counter-Strike 2
League of Legends
Valorant
Technical Analysis
Detailed breakdown of Radeon RX 6400 specifications and capabilities.
Graphics Performance
The Radeon RX 6400 scores 7,728 in the G3D Mark benchmark (the standard measure of rasterization GPU performance), placing it in the Budget tier as a Aging generation graphics card. It is built on the RDNA 2.0 (2020−2025) architecture (codename: Navi 24), manufactured on a 6 nm process— smaller process nodes improve power efficiency and transistor density. It packs 768 shader units (the primary compute units for rendering pixels), 48 TMUs (texture mapping units), and 32 ROPs (render output units that handle final pixel output). Raw FP32 compute power: 3.565 TFLOPS — this measures the theoretical peak floating-point performance. Boost clock reaches 2321 MHz from a base of 1923 MHz.
| Specification | Radeon RX 6400 |
|---|---|
| G3D MarkPassMark 3D graphics benchmark score | 7,728 |
| ArchitectureGPU microarchitecture generation | RDNA 2.0 (2020−2025) |
| CodenameInternal GPU die codename | Navi 24 |
| Manufacturing ProcessFabrication node — smaller = more efficient | 6 nm |
| Shader UnitsCore compute units for rendering/compute | 768 |
| TMUsTexture Mapping Units — handle texture sampling | 48 |
| ROPsRender Output Units — final pixel/color blending | 32 |
| Boost ClockMaximum GPU frequency under load | 2321 MHz |
| Base ClockGuaranteed minimum GPU frequency | 1923 MHz |
| Compute (FP32)Peak single-precision floating-point performance | 3.565 TFLOPS |
| Texture Fill RateTextures processed per second | 111.4 GTexel/s |
| PCIe InterfaceCPU↔GPU data link generation | PCIe 4.0 x4 |
| Transistor Count | 5,400 million |
| Performance RankPosition in global GPU performance ranking | #330 |
Video Memory (VRAM)
The Radeon RX 6400 is equipped with 4 GB of GDDR6 video memory connected via a 64-bit memory bus, delivering 128 GB/s of bandwidth. GDDR6 provides fast memory access for gaming and compute workloads. Memory operates at 14 Gbps effective speed.
| Specification | Radeon RX 6400 |
|---|---|
| VRAM SizeVideo memory capacity — more = better for high-res textures | 4 GB |
| VRAM TypeMemory technology generation | GDDR6 |
| Memory BusWidth of data path — wider = more bandwidth | 64-bit |
| Memory SpeedEffective memory data rate | 14 Gbps |
| BandwidthMaximum data throughput between GPU and VRAM | 128 GB/s |
| L1 Cache | 256 kB |
| L2 Cache | 1024 kB |
Advanced Features & APIs
The Radeon RX 6400 supports modern upscaling and frame generation technologies: FSR Frame Generation, AMD Fluid Motion Frames, FidelityFX Super Resolution — these can dramatically boost effective FPS by generating intermediate frames or upscaling from lower internal resolution. Graphics API support: DirectX 12.2, Vulkan 1.3, OpenGL 4.6— latest API versions enable the most advanced rendering features like ray tracing and mesh shaders.
| Specification | Radeon RX 6400 |
|---|---|
| FSR Frame Generation | ✅ Supported |
| AMD Fluid Motion Frames | ✅ Supported |
| FidelityFX Super Resolution | ✅ Supported |
| DirectXMicrosoft graphics API version | 12.2 |
| VulkanCross-platform graphics API | 1.3 |
| OpenGLLegacy graphics API | 4.6 |
| Compute APIGPGPU framework (CUDA/ROCm/OpenCL) | OpenCL 2.2 |
| Multi-GPUSLI/CrossFire/NVLink support | None |
Display & Media
Display outputs: 1x DP, 1x HDMI — supports up to 2 simultaneous displays. Hardware encoder: None, decoder: VCN 3.0 (Limited)— dedicated hardware for video encoding/decoding accelerates streaming, recording, and video playback. Supported codecs: MPEG-2,H.264 (Decode),HEVC (Decode).
| Specification | Radeon RX 6400 |
|---|---|
| DP PortsNumber of DP display connectors | 1x |
| HDMI PortsNumber of HDMI display connectors | 1x |
| Max DisplaysMaximum simultaneously connected monitors | 2 |
| Hardware EncoderVideo encoding engine version | None |
| Hardware DecoderVideo decoding engine version | VCN 3.0 (Limited) |
| CodecsSupported video compression formats | MPEG-2,H.264 (Decode),HEVC (Decode) |
Power & Dimensions
The Radeon RX 6400 draws 53 Watt under load (TDP) — a 350W PSU minimum is recommended. Power connector: None. Physical size: 172mm long, 112mm tall, occupying 1 expansion slots, weighing 358g— verify your case has clearance before purchasing. Typical temperatures: 35°C at idle, 75°C under load.
| Specification | Radeon RX 6400 |
|---|---|
| TDPPower consumption under load | 53 Watt |
| Recommended PSUMinimum power supply wattage | 350W |
| Power ConnectorRequired PCIe power cable type | None |
| Card LengthGPU card length — check case clearance | 172mm |
| Card Height | 112mm |
| Slot WidthExpansion slots occupied | 1-slot |
| Weight | 358g |
| Idle TemperatureTypical temperature at desktop idle | 35°C |
| Load TemperatureTypical temperature under gaming load | 75°C |
Value Analysis
At an average price of $139 (MSRP: $159), the Radeon RX 6400 delivers 56 G3D Mark points per dollar. Overall performance ranking position: #330 among all indexed GPUs.
| Specification | Radeon RX 6400 |
|---|---|
| MSRPManufacturer's Suggested Retail Price | $159 |
| Avg Price (30d)Average market price over the last 30 days | $139 |
| Performance RankPosition in global GPU performance ranking | #330 |
| Release Date | January 19 2022 |
| Release Year | 2022 |
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Our Recommendation for Radeon RX 6400
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High-End (Max Performance) (12)
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