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- Asrock RX6400 Challenger ITX 4GB, 4GB DDR6, PCIe4, HDMI, DP, 2321MHz Clock, AMD RDNA 2, 0dB Cooling, Compact Design Asrock RX6400 Challenger ITX 4GB, 4GB DDR6, PCIe4, HDMI, DP, 2321MHz Clock, AMD RDNA 2, 0dB Cooling, Compact Design
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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
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.
The fan spins when the temperature goes high for the optimal cooling, and stops when the temperature goes low for the complete silence.
Eliminate the gaps in the contact area to maximize heat transfer and thermal efficiency.
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.
Provides the smart fan speed control and instant performance tweaking.
Not only can it handles 4K graphics but also supports the next generation 8K video output for the ultimate visual experience.
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.
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.
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.
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.
Description
Specification
- Chipset Manufacturer: AMD
- Interface: PCI Express 4.0
- Graphics Chipset: AMD RX 6400
- Memory Size: 4GB
- Memory Type: DDR6
- Memory Interface: 64-bit
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Engine 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
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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 Ultimate
- Max Display Support: 2
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Cooling: Single Fan Design
0DB Silent Cooling - PSU Requirements: 350W or greater recommended
- Connectors Required: -
- Dimensions: 162 x 112 x 39 mm
- Slot Size: 2 Slot
- Additional Features: See Overview
- Accessories: 1 x Quick Installation Guide
- Package Type: Retail
- #Hide#HDMI: Yes (HDMI)
- #Hide#DisplayPort: Yes (DisplayPort)
- Package Weight: 0.6600 kg
- Warranty: 2 Year Replacement Warranty
Delivery & Shipping Policy
Last updated: 19/09/2025
At Tech Direct UK, we aim to get your order to you as quickly and efficiently as possible. Please see below for our delivery terms.
1. Delivery Options & Costs
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Free Delivery – Orders over £50 qualify for free UK standard delivery.
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Standard Delivery – Orders under £50 are charged at £4.99.
2. Delivery Times
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Next Day Delivery – The majority of items are shipped via next day courier if ordered before 2:00pm (Monday–Friday).
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Orders placed after 2:00pm, on weekends, or bank holidays will be processed the next working day.
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Larger or Heavy Items – Certain products (e.g., heavy furniture, oversized goods) may take 2–5 working days for delivery. Estimated times will be displayed at checkout.
3. Delivery Areas
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We deliver to all mainland UK addresses.
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Deliveries to remote areas (e.g., Highlands, Islands, Northern Ireland) may take longer or incur additional charges — these will be shown at checkout before confirming your order.
4. Tracking Your Order
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Once dispatched, you will receive an email confirmation with tracking details (where available).
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You can track your delivery via the courier’s website.
5. Missed Deliveries
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If you are not available at the time of delivery, the courier will leave a card or attempt redelivery.
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Repeated failed delivery attempts may result in the parcel being returned to us. In this case, re-delivery charges may apply.
6. Risk of Loss
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Risk of loss or damage to the goods passes to you once they are delivered.
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Please inspect your order upon receipt and notify us of any issues within 48 hours.
7. Contact Us
If you have any questions about delivery, please contact us:
📧 Email: support@techdirectuk.com