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Triple-fan graphics card with matte black shroud and silver accents

ASUS

ASUS STRIX Radeon R9 390 8GB graphics card

SKU CH-8ES2-FAWQQ

Radeon R9 390 GPU with 8 GB GDDR5 on a 512-bit bus, factory overclocked to 1070 MHz and cooled by a triple-fan DirectCU III design

  • InterfacePCI Express 3.0
  • Chipset ManufacturerAMD
  • GPU SeriesAMD Radeon R9 300 Series
  • GPURadeon R9 390
  • Core Clock1070 MHz (OC Mode) 1050 MHz (Gaming Mode)
  • Effective Memory Clock6000 MHz
  • 8 GB GDDR5 on a 512-bit bus enables 4K gaming
  • 1050 MHz core clock with 1070 MHz OC mode drives high frame rates
  • DirectCU III triple fan design runs 30% cooler and three times quieter
  • Auto-Extreme manufacturing with Super Alloy Power II components boosts reliability
  • HDMI, three DisplayPort and DVI outputs support 4096×2160 resolution

ASUS STRIX R9 390 8GB graphics card

The ASUS STRIX R9 390 is an 8GB graphics card built on the AMD Radeon R9 300 Series GPU. It targets gamers who want high frame rates at 1440p and entry-level 4K using a 512-bit GDDR5 memory interface and PCI Express 3.0 connectivity. The card supports DirectX 12 and OpenGL 4.4 for modern API features and is marked Virtual Reality Ready for headset use. Outputs include one HDMI, three DisplayPort and one DVI connector for multi-monitor setups.

Installation experience and common issues

The card fits a standard PCI Express 3.0 slot and requires sufficient case length and two 8-pin power connectors for its 275W TDP. DirectCU III with Triple Wing-Blade 0dB Fan Design keeps the cooler silent at low loads, but the triple-slot thickness can block adjacent motherboard headers in compact builds. Driver installation is straightforward, though some users report occasional fan-curve resets after GPU Tweak II updates that require a profile reload.

Who this suits and who should look elsewhere

This model suits enthusiasts who value 8GB VRAM for texture-heavy titles and appreciate factory overclock headroom with 1050 MHz Gaming Mode and 1070 MHz OC Mode. Builders with limited case clearance or modest power supplies should consider smaller, lower-TDP alternatives. Users needing newer architecture features such as hardware ray tracing or AV1 decode will need to look at more recent GPU generations.

Highlights

  • 8 GB GDDR5 on a 512-bit bus enables 4K gaming
  • 1050 MHz core clock with 1070 MHz OC mode drives high frame rates
  • DirectCU III triple fan design runs 30% cooler and three times quieter
  • Auto-Extreme manufacturing with Super Alloy Power II components boosts reliability
  • HDMI, three DisplayPort and DVI outputs support 4096×2160 resolution

Specifications

BrandASUS
ModelSTRIX-R9390-DC3OC-8GD5-GAMING
InterfacePCI Express 3.0
Chipset ManufacturerAMD
GPU SeriesAMD Radeon R9 300 Series
GPURadeon R9 390
Core Clock1070 MHz (OC Mode) 1050 MHz (Gaming Mode)
Effective Memory Clock6000 MHz
Memory Size8GB
Memory Interface512-Bit
Memory TypeGDDR5
DirectXDirectX 12
OpenGLOpenGL 4.4
HDMI1 x HDMI
DisplayPort3 x DisplayPort
DVI1 x DVI
Max Resolution4096 x 2160
Virtual Reality ReadyYes
CoolerWith Fan
Thermal Design Power275W
System RequirementsPower Consumption: up to 300W
Power Connector1 x 6-Pin + 1 x 8-Pin
HDCP ReadyYes
Card Dimensions (L x H)11.80" x 5.42"
Slot Width2 Slots

Questions about this item

How can I confirm the card is running at the 1050 MHz gaming clock after installation?

Open GPU Tweak II and check the live clock read-out while a 3D load is running; it should settle at 1050 MHz in Gaming Mode.

What cables or adapters come in the box besides the card itself?

The supplier data lists only the video card; any power cables, display cables or mounting brackets must be sourced separately.

Should I choose the 8 GB GDDR5 version or a different capacity for 4096 x 2160 gaming?

This model is offered only with 8 GB of GDDR5 on a 512-bit bus, which matches the 4096 x 2160 maximum resolution spec.

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