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Compare · 2 products compared

AMD Radeon RX 7700 XTvsAMD Radeon RX 7900 XTX Comparison

Both the AMD Radeon RX 7700 XT and the AMD Radeon RX 7900 XTX share the Rdna 3 architecture and PCIe 4.0 support. Choosing between them comes down to balancing high-end rendering power against a lower cost.

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Intro

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Best for

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Biggest differences

  • Launch price

    AMD Radeon RX 7700 XT leads

    2.22×

    lower is better

    • AMD Radeon RX 7700 XT449 USD
    • AMD Radeon RX 7900 XTX999 USD

  • Memory bandwidth

    AMD Radeon RX 7900 XTX leads

    2.22×

    higher is better

    • AMD Radeon RX 7700 XT432 GB/s
    • AMD Radeon RX 7900 XTX960 GB/s

  • Video memory

    AMD Radeon RX 7900 XTX leads

    2×

    higher is better

    • AMD Radeon RX 7700 XT12 GB
    • AMD Radeon RX 7900 XTX24 GB

  • Memory bus width

    AMD Radeon RX 7900 XTX leads

    2×

    higher is better

    • AMD Radeon RX 7700 XT192 bit
    • AMD Radeon RX 7900 XTX384 bit

Where each one wins

  • AMD Radeon RX 7700 XT

    • Launch price
    • Boost clock
    • Board power
    • Recommended PSU
    • DisplayPort outputs
    • Card length

  • AMD Radeon RX 7900 XTX

    • Shader cores
    • FP32 compute
    • Video memory
    • Memory bus width
    • Memory bandwidth
    • Memory speed
    • Last-level cache

What both have

  • ArchitectureRdna 3
  • Memory typeGddr6
  • Power connectors8-pin
  • PCIe version4.0
  • PCIe lanes16 lanes
  • HDMI version2.1
  • DisplayPort version2.1
  • HDMI outputs1 ports
  • Max displays4 displays
  • Hardware encodeH.264, HEVC, AV1
  • Slot width2.5 slots

Every spec

Red marks the better value in each row.

SpecAMD Radeon RX 7700 XTAMD Radeon RX 7900 XTX
Overview

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Overview specs

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Release date2023-092022-121
Launch price449 USD999 USD2
Graphics chip

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Graphics chip specs

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ArchitectureRdna 3Rdna 3
Shader cores3,456 cores6,144 cores
Boost clock2,544 MHz2,500 MHz3
Base clock1,435 MHz4Not published
FP32 compute35.2 TFLOPS61.4 TFLOPS
Memory

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Memory specs

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Video memory12 GB24 GB
Memory typeGddr6Gddr6
Memory bus width192 bit384 bit
Memory bandwidth432 GB/s5960 GB/s6
Memory speed18 Gbps20 Gbps
Last-level cache48 MB96 MB
Power

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Power specs

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Board power245 W355 W
Recommended PSU700 W7800 W8
Power connectors8-pin98-pin10
Interface

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Interface specs

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PCIe version4.04.0
PCIe lanes16 lanes16 lanes
Display outputs

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Display outputs specs

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HDMI version2.12.1
DisplayPort version2.1112.112
HDMI outputs1 ports1 ports
DisplayPort outputs3 ports2 ports
Max displays4 displays4 displays
Video engine

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Video engine specs

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Hardware encodeH.264, HEVC, AV1H.264, HEVC, AV113
Video encodersNot published2 encoders14
Size

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Size specs

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Card length267 mm287 mm
Card heightNot publishedNot published
Slot width2.5 slots2.5 slots
Notes on 14 values — test conditions and caveats
  1. 1AMD Radeon RX 7900 XTX, Release date: First retail sale December 13, 2022; announced November 3, 2022.
  2. 2AMD Radeon RX 7900 XTX, Launch price: AMD's launch figure is the SEP (suggested e-commerce price); partner cards often sold higher.
  3. 3AMD Radeon RX 7900 XTX, Boost clock: Boost is a burst maximum; typical gaming runs near the 2300 MHz game clock.
  4. 4AMD Radeon RX 7700 XT, Base clock: AMD publishes only Game (2171 MHz) and Boost clocks; no base clock appears on AMD's page.
  5. 5AMD Radeon RX 7700 XT, Memory bandwidth: AMD also lists 1995 GB/s 'effective' bandwidth including Infinity Cache; 432 GB/s is the raw VRAM figure.
  6. 6AMD Radeon RX 7900 XTX, Memory bandwidth: AMD also quotes 3500 GB/s 'effective' bandwidth with Infinity Cache; 960 GB/s is the raw VRAM figure.
  7. 7AMD Radeon RX 7700 XT, Recommended PSU: AMD bases this rating on a Ryzen 9 7950X system; your needs may differ.
  8. 8AMD Radeon RX 7900 XTX, Recommended PSU: AMD's 800W minimum assumes a Ryzen 9 5900X-class system; other builds may need more headroom.
  9. 9AMD Radeon RX 7700 XT, Power connectors: Reference card uses two 8-pin PCIe power connectors.
  10. 10AMD Radeon RX 7900 XTX, Power connectors: The reference card uses two 8-pin connectors.
  11. 11AMD Radeon RX 7700 XT, DisplayPort version: Notebookcheck specifies the DP 2.1 output at UHBR13.5 link rate.
  12. 12AMD Radeon RX 7900 XTX, DisplayPort version: DisplayPort 2.1 runs UHBR 13.5, up to 54Gbps of display link bandwidth per AMD.
  13. 13AMD Radeon RX 7900 XTX, Hardware encode: AMD's spec table marks 4K H264 Encode, H265/HEVC Encode and AV1 Encode all as Yes.
  14. 14AMD Radeon RX 7900 XTX, Video encoders: AMD describes a Dual Media Engine, i.e. two encode/decode engines, capable of simultaneous 8K60 HEVC streams.

Performance and Compute

The RX 7900 XTX includes 6,144 cores and 61.4 TFLOPS of FP32 compute, substantially outpacing the RX 7700 XT and its 3,456 cores. This hardware advantage delivers smoother frame rates and faster processing in demanding workloads.

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Performance and Compute

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Memory and Resolution

With 24 GB of video memory on a 384-bit memory bus, the RX 7900 XTX handles high-resolution textures effortlessly. The RX 7700 XT provides 12 GB of video memory on a 192-bit bus, which suits standard multi-display setups well.

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Memory and Resolution

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Power and Size

The RX 7700 XT draws 245 W and requires a 700 W power supply, making it easier to fit into modest builds. Its shorter length of 267 mm also helps it fit into tighter PC cases compared to the larger alternative.

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Power and Size

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The Verdict

Buy the RX 7700 XT if you want a balanced card that requires less power and costs $449. Buy the RX 7900 XTX if you need maximum compute capability and 24 GB of VRAM.

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Verdict

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Where to buy

FAQ

What power supply do these cards need?

The RX 7700 XT requires a 700 W power supply, while the RX 7900 XTX needs an 800 W minimum unit.

Do both cards support AV1 hardware encoding?

Yes, both graphics cards feature hardware encode support for H.264, HEVC, and AV1.

How many displays can each card drive simultaneously?

Both models support a maximum of 4 displays across their HDMI and DisplayPort outputs.

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FAQ

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