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Black ITX graphics card with single fan cooler, two-slot bracket, one HDMI and one DisplayPort

ASRock

ASRock RX6400 CLI 4G graphics card

SKU CH-D5B0-1ZTSM MPN RX6400 CLI 4G

Entry-level graphics card with 4 GB GDDR6 memory, 768 stream processors and a 53 W TDP for small-form-factor builds

  • InterfacePCI Express 4.0
  • Chipset ManufacturerAMD
  • GPU SeriesAMD Radeon RX 6000 Series
  • GPURadeon RX 6400
  • ArchitectureRDNA 2
  • Core Clock1923 MHz
  • 4GB GDDR6 memory handles 1080p textures smoothly
  • Boost clock reaches 2321 MHz for responsive frame rates
  • HDMI 2.1 and DisplayPort 1.4 drive two 4K displays
  • 53W TDP runs on a 350W power supply
  • 162 mm ITX card fits small-form-factor builds

Compact ITX graphics card

The ASRock Challenger Radeon RX 6400 is a single-slot ITX graphics card built on the RDNA 2 architecture with 768 stream processors and 4GB of GDDR6 memory on a 64-bit bus. It targets small-form-factor builds that need a modern display output and hardware-accelerated decode without a large power budget. The card draws 53W and only requires a 350W power supply.

Upgrade from integrated graphics

This card replaces a processor’s integrated graphics when the system lacks a discrete GPU or when the onboard video cannot drive a 7680 x 4320 display over HDMI 2.1 or DisplayPort 1.4. The jump is worth it for multi-monitor productivity, hardware video decode, and entry-level 1080p gaming where integrated graphics stutter or lack the required outputs.

Sustained load behaviour

Under continuous load the 53W thermal design power keeps heat output modest, allowing the single fan to maintain stable clocks near the 2039 MHz game clock without aggressive ramping. The 0dB silent cooling feature stops the fan entirely at low temperatures, so noise only appears when the GPU is actually working. The ITX length of 162 mm ensures airflow is not blocked in tight cases.

商品特色

  • 4GB GDDR6 memory handles 1080p textures smoothly
  • Boost clock reaches 2321 MHz for responsive frame rates
  • HDMI 2.1 and DisplayPort 1.4 drive two 4K displays
  • 53W TDP runs on a 350W power supply
  • 162 mm ITX card fits small-form-factor builds

商品規格

BrandASRock
SeriesChallenger
ModelRX6400 CLI 4G
InterfacePCI Express 4.0
Chipset ManufacturerAMD
GPU SeriesAMD Radeon RX 6000 Series
GPURadeon RX 6400
ArchitectureRDNA 2
Core Clock1923 MHz
Game Clock2039 MHz
Boost Clock2321 MHz
Stream Processors768
Effective Memory Clock16 Gbps
Memory Size4GB
Memory Interface64-Bit
Memory TypeGDDR6
DirectXDirectX 12 Ultimate
OpenGLOpenGL 4.6
Multi-Monitor Support2
HDMI1 x HDMI 2.1
DisplayPort1 x DisplayPort 1.4
ColorBlack
Max Resolution7680 x 4320
CoolerSingle Fan
Thermal Design Power53W
Recommended PSU Wattage350W
HDCP ReadyYes
FeaturesSingle Fan Design
0dB Silent Cooling
Fit small form factor system
Super Alloy Graphics Card
ASRock Tweak 2.0
AMD FidelityFX Super Resolution
Hardware Raytracing
Form FactorITX
Max GPU Length162 mm
Card Dimensions (L x H)6.38" x 4.41"
Slot Width2 Slots
出貨重量0.59 kg
包裝尺寸419 × 229 × 89 mm

商品問答

Will the 162 mm length and two-slot width fit my small-form-factor case?

The card is built to ITX dimensions at 162 mm long and occupies two slots, so it fits most compact chassis that accept a standard dual-slot GPU.

Is a 350 W power supply enough for the 53 W board?

Yes, the manufacturer recommends a 350 W PSU for the 53 W TDP, leaving ample headroom for the rest of a typical system.

Can I drive two 4K displays with the HDMI 2.1 and DisplayPort 1.4 outputs?

Both ports support up to 7680 x 4320 resolution, so dual 4K monitors at 60 Hz or higher are well within capability.

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