Technical Specifications

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AMD Radeon RX 6900 XT Specifications and Bundles

      AMD Radeon RX 6900 XT GPU Card Specifications

      Compatibility

      Mac Compatibility

      • Mac Pro 7,1 (2019) – 2.5x wide GPU card for slot 3 (&4)(1)
      2019 Mac Pro PCIe Slots
      • Mac (Intel®) with Thunderbolt 3 port plus Sonnet eGPU chassis
      • macOS 11.6+

      Windows Compatibility

      • Windows 11 or 10 computer with 2.5 wide x16 PCIe slot

      Thunderbolt Compatibility

      • Sonnet Breakaway Box 750 or 750ex
      • Sonnet DuoModo eGPU module

      Radeon RX 6900 XT Ports Compatibility

      • macOS 11.6+
      • HDMI: 4K 60Hz
      • DisplayPorts: 5K 60Hz
      • USB-C Port: Not compatible(2)(3)
      • Windows 11 or 10
      • HDMI: 8K 60Hz, 4K 120Hz+ (with AMD FreeSync monitor)
      • DisplayPorts: 5K 60Hz, 4K 120Hz (with AMD FreeSync monitor), 8K 60Hz (using two DisplayPorts)
      • USB-C Port: 4K 60Hz in Windows PC or in eGPU chassis connected to Thunderbolt 4 computer port;  not compatible in eGPU chassis connected to Thunderbolt 3 computer port(2)

      Hardware

      Warranty

      • 2-year

      Form Factor

      • Full-length, full-height, 2.5-card width PCIe card

      Dimensions

      • 297(L) x 120(W) x 50(H) mm

      Bus Interface

      • PCI Express 4.0 x16

      Internal Connectors

      • Two 8-pin PCIe power connectors

      External Connectors

      • One HDMI
      • Two DisplayPort
      • One USB-C

      GPU

      • AMD Radeon RX 6900 XT by AMD Certified Global Add-in Board Partner
      • 7nm GPU
      • AMD RDNA 2 Architecture

      Engine Clock

      • Engine Clock: Up to 2015 MHz
      • Boost Clock: Up to 2250 MHz

      Stream Processors

      • 5120

      Infinity Cache

      • 128 MB

      Ray Accelerators

      • 80

      Memory Size/Bus

      • 16 GB GDDR6

      Memory Cock

      • 16 Gbps Effective

      Memory Interface

      • 256-bit

      Memory Bandwidth

      • Up to 512 GBps

      Displays

      • Maximum 4 Displays

      Resolution(4)

      • HDMI: 7680×4320
      • DisplayPort 1.4: 7680×4320
      • USB-C: 7680×4320

      DirectX® Support

      • 12

      Interface

      • PCI-Express 4.0

      BIOS Support

      • UEFI

      AMD Features(5)

      • AMD RDNA 2 Gaming Architecture
      • DirectX 12 Ultimate
      • Hardware Raytracing
      • AMD FreeSync Technology
      • DisplayPort 1.4 with DSC
      • HDMI 2.1 VRR
      • Video Streaming up to 8K
      • Radeon VR Ready Premium
      • AMD FidelityFX
      • Radeon Image Sharpening
      • Radeon Anti-Lag
      • Game Driver Optimizations
      • High Performance 4K Gaming

      Cooling

      • Three 90 mm fans

      Zero RPM Fan Mode

      • Yes

      Power Consumption

      • 360W

      Package Contents

      • AMD Radeon RX 6900 XT GPU Card

      DuoModo xMac mini/eGPU Desktop Bundle

      Hardware

      Configure Bundle with:

      • DuoModo xMac mini/eGPU Desktop system
      • AMD Radeon RX 6900 XT GPU card

      See DuoModo Product Page Technical Specifications for complete module and enclosure specifications and important technical notes, plus a link to Sonnet’s External Graphics Setup and Usage Guide for macOS.

      Warranty

      • 2-year

      DuoModo xMac mini/eGPU Rackmount Bundle

      Hardware

      Configure Bundle with:

      • DuoModo xMac mini/eGPU Rackmount system
      • AMD Radeon RX 6900 XT GPU card

      See DuoModo Product Page Technical Specifications for complete module and enclosure specifications and important technical notes, plus a link to Sonnet’s External Graphics Setup and Usage Guide for macOS.

      Warranty

      • 2-year

      DuoModo eGPU Module Bundle

      Hardware

      Configure Bundle with:

      • DuoModo eGPU Module (DuoModo enclosure required, sold separately)
      • AMD Radeon RX 6900 XT GPU card

      See DuoModo Product Page Technical Specifications for complete eGPU module specifications and important technical notes, plus links to external graphics setup and usage guides for macOS and Windows.

      Warranty

      • 2-year

      eGPU Breakaway Box 750/750ex Bundle

      Hardware

      Configure Bundle with:

      • eGPU Breakaway Box 750 or 750ex
      • AMD Radeon RX 6900 XT GPU card

      See eGPU Breakaway Box 750/750ex Product Page Technical Specifications for complete specifications and important technical notes, plus links to external graphics setup and usage guides for macOS and Windows.

      Warranty

      • 2-year

      2019 Mac Pro eGPU Bundle

      Hardware

      Configure Bundle with:

      • AMD Radeon RX 6900 XT GPU card
      • Two auxiliary PCIe power cables for 2019 Mac Pro

      Warranty

      • 2-year

      Mac Compatibility

      • Mac Pro 7,1 (2019) – 2.5x wide GPU card for slot 3 (&4)(1)
      2019 Mac Pro PCIe Slots
      • macOS 11.6+

      Technical Notes

      • Requires two auxiliary PCIe power cables for 2019 Mac Pro such as Sonnet GPU-CBL-MP.
      • In an eGPU chassis: after a cold-start, restart, or Thunderbolt hot-plug, a Thunderbolt/USB-C monitor does not light until the USB-C cable is unplugged and plugged; the USB hub in a Thunderbolt display does not enumerate.
      • In the 2019 Mac Pro: after wake from sleep, a Thunderbolt/USB-C monitor does not light until the USB-C cable is unplugged and plugged; the USB hub in a Thunderbolt display does not enumerate.
      • This GPU card implements advanced display protocols, making this card future-ready. Some of these protocols are not yet supported by some OS drivers and/or available displays.
      • Some of these features are available only on Windows.

      AMD Radeon RX 6900 XT Bundles