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ASUS Dual Radeon RX 6600 XT graphics card, two-fan cooler, dark grey metal shroud, silver backplate, PCIe bracket with one HDMI

ASUS

ASUS Dual Radeon RX 6600 XT 8GB GDDR6 graphics card

SKU CH-ZM02-6P66G

Delivers 1080p gaming with 8 GB GDDR6 at 16 Gbps, 2048 stream processors, PCIe 4.0 and four-display output via HDMI 2.1 and three DisplayPort 1.4a ports

  • InterfacePCI Express 4.0
  • Chipset ManufacturerAMD
  • GPU SeriesAMD Radeon RX 6000 Series
  • GPURadeon RX 6600 XT
  • ArchitectureRDNA 2
  • Stream Processors2048
  • RDNA 2 architecture powers 2048 stream processors for 1080p gaming
  • 8 GB GDDR6 memory at 16 Gbps on a 128-bit bus
  • PCI Express 4.0 interface doubles bandwidth over 3.0
  • One HDMI 2.1 plus three DisplayPort 1.4a drive four 8K displays
  • Dual-fan 2.5-slot cooler fits compact builds at 9.60" length

Dual Radeon RX 6600 XT 8GB GDDR6

This ASUS Dual series card targets 1080p gaming with the AMD Radeon RX 6600 XT GPU. The RDNA 2 architecture provides 2048 stream processors and an effective memory clock of 16 Gbps across 8GB of GDDR6 on a 128-bit interface. It connects via PCI Express 4.0 and supports DirectX 12 Ultimate plus OpenGL 4.6 for modern titles.

2.5-slot cooler thermals and power

The 2.5-slot design houses a dual-fan cooler built to handle the GPU load at a core clock of 1867 MHz. Heat exhausts through the rear bracket, keeping internal case temperatures manageable. Power draw stays within typical limits for a single 8-pin connection, and fan curves stay quiet at idle before ramping under sustained load.

HDMI 2.1 and triple DisplayPort 1.4a outputs

One HDMI 2.1 port and three DisplayPort 1.4a connectors drive up to four monitors at a maximum resolution of 7680 x 4320. The card measures 9.60 inches by 5.30 inches, fitting most ATX builds with two and a half slots of clearance. A reinforced backplate adds rigidity and protects the PCB during installation and transport.

Highlights

  • RDNA 2 architecture powers 2048 stream processors for 1080p gaming
  • 8 GB GDDR6 memory at 16 Gbps on a 128-bit bus
  • PCI Express 4.0 interface doubles bandwidth over 3.0
  • One HDMI 2.1 plus three DisplayPort 1.4a drive four 8K displays
  • Dual-fan 2.5-slot cooler fits compact builds at 9.60" length

Specifications

BrandASUS
SeriesDual
ModelDUAL-RX6600XT-O8G
InterfacePCI Express 4.0
Chipset ManufacturerAMD
GPU SeriesAMD Radeon RX 6000 Series
GPURadeon RX 6600 XT
ArchitectureRDNA 2
Stream Processors2048
Effective Memory Clock16 Gbps
Memory Size8GB
Memory Interface128-Bit
Memory TypeGDDR6
DirectXDirectX 12 Ultimate
OpenGLOpenGL 4.6
Multi-Monitor Support4
HDMI1 x HDMI 2.1
DisplayPort3 x DisplayPort 1.4a
Max Resolution7680 x 4320
CrossFireX SupportCrossfire Support for DirecX 12 and Vulkan
Virtual Reality ReadyYes
Recommended PSU Wattage500W
Power Connector1 x 8-pin
HDCP Ready2.3
FeaturesAxial-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. Auto-Extreme Technology uses automation to enhance reliability. A protective backplate prevents PCB flex and trace damage.
Form FactorATX
Max GPU Length243 mm
Card Dimensions (L x H)9.60" x 5.30"
Slot Width2.5 Slot

Questions about this item

Will the 2.5-slot thickness and 9.60-inch length fit my case?

The card measures 9.60 inches long and occupies 2.5 slots, so verify your case clearance and motherboard spacing before installing.

What power connectors are required for the 1867 MHz core clock?

The board draws power through a standard 8-pin PCIe connector; ensure your supply has one available and meets the recommended wattage.

Can I run four monitors at 7680 x 4320 using the 1 x HDMI 2.1 and 3 x DisplayPort 1.4a outputs?

Yes, the four outputs support up to 7680 x 4320 combined, allowing four simultaneous displays at high resolution.

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