Hardware FixRecommendedDevice not working? Your driver may be the problemCheck updates for common hardware issues.Fix DriversHalloween DealsAmazon USHalloween week deals: useful picks before month-endAmazon US: current deals, useful picks and tech finds.Check DealsWindows FixRecommendedWindows errors stealing your time? Find the fix fastScan stability, cleanup and performance issues.Fix Now×
Skip to content
World desk3 min

What to Check Before Choosing an RX 7900 XTX for Your PC

AMD’s Radeon RX 7900 XTX has 24 GB of GDDR6, a 355 W typical board power rating, and a recommended 800 W or greater PSU. Check exact partner-card dimensions and power requirements before building.
Special offer. See more information about Outbyte and uninstall instructions. Please review EULA and Privacy policy.

The AMD Radeon RX 7900 XTX is a Radeon RX 7000 Series desktop graphics card launched on December 13, 2022. AMD lists 24 GB of GDDR6 memory, 96 compute units, a 2,300 MHz game frequency, and boost frequency up to 2,500 MHz. For a build, the practical checks are a recommended 800 W or greater power supply, two 8-pin power connectors, and enough case clearance for the exact card.

AMD Radeon RX 7900 XTX specifications

The figures below are AMD-published specifications, not independent measurements. Clock speeds and memory bandwidth are stated as maximums where indicated.

As an Amazon Associate I earn from qualifying purchases.

Category AMD-published specification
Product / series AMD Radeon RX 7900 XTX / Radeon RX 7000 Series
Launch date December 13, 2022
Compute units 96
Stream processors 6,144
Game frequency 2,300 MHz
Boost frequency Up to 2,500 MHz
Ray accelerators 96
AI accelerators 192
Peak single-precision (FP32 vector) performance 61.4 TFLOPs
Memory 24 GB GDDR6
Memory speed Up to 20 Gbps
Infinity Cache 96 MB
Memory bandwidth Up to 960 GB/s
Effective memory bandwidth Up to 3,500 GB/s
Typical board power 355 W
Minimum PSU recommendation 800 W or greater; 12 V output above 65 A
Auxiliary power connectors 2 × 8-pin
Listed display connectivity DisplayPort 2.1, HDMI 2.1, USB Type-C
Reference card dimensions 287 mm long; 2.5 slots
Video encode and decode AV1, H.264, and H.265/HEVC
Operating systems listed by AMD Windows 11 64-bit, Windows 10 64-bit, Ubuntu x86-64, Linux x86-64

See AMD’s RX 7900 XTX specifications and its consolidated graphics specifications.

Special offer. See more information about Outbyte and uninstall instructions. Please review EULA and Privacy policy.

What the power figures mean for a PC build

AMD lists 355 W as typical board power, while its recommended minimum system power supply is 800 W or greater with 12 V output above 65 A. These numbers describe different things: board power is the card’s typical power figure, whereas the PSU recommendation applies to the complete computer. AMD’s recommendation is based on a system with a Ryzen 9 5900X and typical component power; its product page cautions, “Your system requirements may differ.”

#1 Best Overall
ASRock Radeon RX 7900 XTX Phantom Gaming 24GB OC Graphics Card, 2615 MHz Boost Clock, 24GB GDDR6, DisplayPort 2.1, HDMI 2.1, Triple Fan Cooling
  • Flagship Gaming Performance, AMD Radeon RX 7900 XTX GPU with 2615 MHz boost clock and 24GB GDDR6 memory for elite 4K gaming
  • Advanced RDNA 3 Architecture, 96 compute units with RT+AI accelerators and 96MB AMD Infinity Cache technology
  • Premium Cooling Solution, Phantom Gaming 3X Cooling System with Striped Ring Fans and reinforced metal frame
  • High-Speed Memory, 24GB GDDR6 on 384-bit memory bus delivers exceptional bandwidth for 4K gaming and content creation
  • Silent Operation, 0dB Silent Cooling technology ensures zero fan noise during low-intensity tasks
  • Confirm the power supply meets the stated wattage and 12 V output condition, and has two 8-pin connectors available for the card.
  • Consider the power requirements of the rest of the build rather than treating 800 W as a guarantee of compatibility for every system.
  • Check the requirements for the specific RX 7900 XTX model you plan to use; partner-card details can differ from the reference specification.

Check card clearance and exact model dimensions

AMD’s listed reference dimensions are 287 mm in length and 2.5 slots in thickness. These are useful starting points, not a fit guarantee for every RX 7900 XTX: partner cards can use different coolers and dimensions. Compare the exact card’s measurements with your case’s graphics-card clearance and available slot space before buying. AMD’s product specifications page provides the reference figures; the partner-specific dimensions must be checked against the exact model listing.

Independent reader supportYour contribution helps us test, update, and keep practical guides available for everyone.Support on Ko-Fi

Ports, video formats, and operating systems

Display connections and media formats

AMD lists DisplayPort 2.1, HDMI 2.1, and USB Type-C connectivity, along with AV1, H.264, and H.265/HEVC video encode and decode support. Check the port selection on the exact board: a partner model’s physical outputs are the details that matter when matching monitors and cables.

Operating-system support

AMD lists Windows 11 64-bit, Windows 10 64-bit, Ubuntu x86-64, and Linux x86-64. For current driver packages, use AMD’s driver support page; the supported operating-system list does not itself specify a driver version.

Special offer. See more information about Outbyte and uninstall instructions. Please review EULA and Privacy policy.

How to compare RX 7900 XTX partner cards

When choosing between two cards with the same GPU, compare the actual board specifications rather than assuming the reference dimensions or connector layout apply to both.

  • Length, thickness, and case clearance
  • Cooler design and factory clock specifications
  • Power connectors and the model’s power requirements
  • Physical display ports
  • Warranty and seller terms
  • Current price

AMD’s November 3, 2022 launch announcement named ASRock, ASUS, Biostar, Gigabyte, MSI, PowerColor, Sapphire, Vastarmor, XFX, and Yeston as board partners. That announcement is historical and does not establish present stock or active product lines.

Performance figures and launch price in context

The 61.4 TFLOPs FP32 figure and clock specifications are manufacturer-listed theoretical specifications, not a substitute for game benchmarks. They do not establish how the card performs in a particular game or how it ranks against other current graphics cards. AMD’s launch announcement stated a suggested e-tail price of $999 USD; that was the launch-era announced price, not current retail pricing or availability. See AMD’s November 3, 2022 launch announcement.

Product prices and availability are accurate as of the date/time indicated and are subject to change. Any price and availability information displayed on Amazon at the time of purchase will apply.

What’s actually slowing this PC down?

Pick the symptom - the matching free tool is one click away.

Special offer. See more information about Outbyte and uninstall instructions. Please review EULA and Privacy policy.

Leave a Reply

Your email address will not be published. Required fields are marked *

Special offer. See more information about Outbyte and uninstall instructions. Please review EULA and Privacy policy.

More from the Wire

  1. World desk4 min
    How to Spot an AI Voice Scam Before Sending MoneyDon’t rely on how a caller sounds. Pause, call back through a known number, and verify the emergency with another trusted person before sending money.
  2. Mountain View desk4 min
    Google’s SynthID Detector: How to Check AI-Generated Images, Video and AudioGoogle’s SynthID Detector looks for an embedded watermark in supported images, video and audio. Here is what its results do—and do not—show.
  3. Redmond desk20 min
    How to create a link to File or Folder in Windows 11Windows 11 gives you several ways to point to a file or folder without moving or duplicating it. You can create a desktop shortcut,…
Recommended PC Tool
Recommended PC Tool
Outdated Drivers Are Slowing You DownFree scan - exact matches
PC Slower Than It Used to Be?Free scan - under a minute

Two free Windows tools

One Free Minute Could Fix That PC

Before you go - each of these free tools takes about a minute and tackles what quietly slows a Windows PC down.

Special offer. View Outbyte info, uninstall instructions, EULA, and Privacy Policy.