Asrock RX6400 Challenger ITX 4GB, 4GB DDR6, PCIe4, HDMI, DP, 2321MHz Clock, AMD RDNA 2, 0dB Cooling, Compact Design



  • Chipset Manufacturer: AMD
  • Interface: PCI Express 4.0
  • Graphics Chipset: AMD RX 6400
  • Memory Type: DDR6
  • Memory Size: 4GB
  • Memory Interface: 64-bit
  • Core Clock: Boost Clock: Up to 2321 MHz
    Game Clock: Up to 2039 MHz
    Base Clock: 1923 MHz
  • Memory Clock: 16 Gbps
  • CUDA Cores / Stream Processors: 768 Stream Processors
  • Outputs: 1 x HDMI 2.1
    1 x DisplayPort 1.4
  • HDCP Support: Yes
  • Resolution: Digital Max Resolution: 7680 x 4320
  • DirectX Support: DirectX 12 Ultiamte
  • Max Display Support: 2
  • Multi-GPU Support:
  • Cooling: Single Fan Design
    0DB Silent Cooling
  • PSU Requirements: 350W or greater recommended
  • Software:
  • Accessories: 1 x Quick Installation Guide
  • Dimensions: 162 x 112 x 39 mm
  • Package Weight: 0.5500 kg
  • Package Type: Retail
  • Additional Features: See Overview
  • Connectors Required:
  • #Hide#DVI:
  • #Hide#HDMI: Yes (HDMI)
  • #Hide#DisplayPort: Yes (DisplayPort)
  • Slot Size: 2 Slot
  • Warranty: 2 Year Replacement Warranty
  • #Hide#Lighting Effects:
  • #Hide#Low Profile:
  • Intel XMX Engines:
  • #Hide#White:


AMD Radeon RX 6400 Challenger ITX 4GB


  • Boost Clock: Up to 2321 MHz / 16 Gbps
  • Game Clock: Up to 2039 MHz / 16 Gbps
  • Base Clock: 1923 MHz / 16 Gbpsn
  • 6nm AMD Radeon™ RX 6400
  • 4GB GDDR6
  • AMD RDNA™ 2 Architecture
  • DirectX 12 Ultimate
  • PCI® Express 4.0 Support
  • 1 x DisplayPort™ 1.4 with DSC / 1 x HDMI™ 2.1 VRR
  • Single Fan Design
  • 0dB Silent Cooling
  • Super Alloy Graphics Card
  • ASRock Tweak 2.0
  • 8K Resolution Support
  • AMD FidelityFX™ Super Resolution
  • Hardware Raytracing


SingleFan Design – Optimized Cooling Efficiency
Single fan that provide strong cooling performance and make your gaming rig stay cool. It's optimized for delivering excellent gaming experience with stylish and streamlined design.
0dB Silent Cooling – Spin For Cooling, Stop For Silence
The fan spins when the temperature goes high for the optimal cooling, and stops when the temperature goes low for the complete silence.
Nano Thermal Paste – Perfect Thermal Teamwork
Eliminate the gaps in the contact area to maximize heat transfer and thermal efficiency.
Precise Screw Torque – Optimized Mounting Pressure
ASRock adopts precise screw torque when assembling its graphics cards to optimize the cooler mounting pressure to improve thermal efficiency while avoiding damage to GPU die.


ASRock Tweak 2.0 – Pro and Easy-to-Use Tuning Utility
Provides the smart fan speed control and instant performance tweaking.
8K Resolution Support
Not only can it handles 4K graphics but also supports the next generation 8K video output for the ultimate visual experience.
PCI Express 4.0 Support
This graphics card features PCI Express 4.0 support, with a throughput of 16 GT/s and enables two times the bandwidth compared to PCI Express 3.0. Get ready for the next generation of PC gaming.
Great 1080p Performance
AMD Radeon RX 6400 graphics cards deliver great 1080p gaming and impressive frame rates. The power of AMD RDNA 2 architecture is unleashed with up to 12 powerful graphics compute units, coupled with all ultra-high bandwidth AMD Infinity Cache, and up to 4GB of dedicated GDDR6 memory.
Vivid Visuals
With immersive gaming technologies and support for DirectX 12 Ultimate, AMD Radeon RX 6400 graphics cards draw you into the action. Experience gaming with realistic lighting, shadows, and reflections along with rich detail, thanks to DirectX Raytracing (DXR), variable rate shading (VRS), and AMD FidelityFX technology features, optimized for AMD RDNA 2 architecture.
Get A Boost In Frames For Your Games
AMD FidelityFX Super Resolution (FSR) technology boosts your frame rates by 2.4X on average across select FidelityFX Super Resolution supported games2 with high-quality, high-resolution gaming experiences delivered by AMD Radeon RX 6000 Series graphics cards. Optimize your gaming experience between four presets, ranging from best visual fidelity to maximum performance.



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