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ASUS Phoenix Radeon™ RX 6400 4GB GDDR6 PCI Express 4.0 CrossFireX Support Video Card PH-RX6400-4G


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ASUS Phoenix Radeon™ RX 6400 4GB GDDR6 brings ultra-high frame rates for today’s most popular titles.

  • Axial-tech fan design features a smaller fan hub that facilitates longer blades and a barrier ring that increases downward air pressure.
  • Dual ball fan bearings can last up to twice as long as sleeve bearing designs.
  • stainless-steel bracket is harder and more resistant to corrosion.
  • 144-hour validation program puts cards through a series of stringent tests to ensure compatibility with the latest games
  • Auto-Extreme Technology uses automation to enhance reliability.


Graphic Engine

Radeon RX 6400

Bus Standard

PCI Express 4.0



Video Memory


Engine Clock

Gaming mode: up to 2321MHz(Boost Clock)/ up to 2039MHz(Game Clock)

Stream Processors


Memory Speed

16 Gbps

Memory Interface



Digital Max Resolution 7680 x 4320


Yes x 1 (Native HDMI 2.1)
Yes x 1 (Native DisplayPort 1.4a)
HDCP Support Yes (2.3)

Maximum Display Support


NVlink/ Crossfire Support



1 x Speedsetup Manual


ASUS Driver, please download all software from the support site.


196 x 128.5 x 40.5 mm
72 x 5.06 x 1.59 inches

Recommended PSU



2 Slot


  • Note

* Our wattage recommendation is based on a fully overclocked GPU and CPU system configuration. For a more tailored suggestion, please use the “Choose By Wattage” feature on our PSU product page:
* All specifications are subject to change without notice. Please check with your supplier for exact offers. Products may not be available in all markets. If you do not use the latest and current specifications of ASUS products, you shall be liable for all loss and damage claimed by third party to ASUS based on false advertising or any other issues caused from using false specifications of ASUS products.
* Crossfire Support for DirecX® 12 and Vulkan®
* ‘Game Clock’ is the expected GPU clock when running typical gaming applications, set to typical TGP (Total Graphics Power). Actual individual game clock results may vary.
* ‘Boost Clock’ is the maximum frequency achievable on the GPU running a bursty workload. Boost clock achievability, frequency, and sustainability will vary based on several factors, including but not limited to: thermal conditions and variation in applications and workloads.

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