KurabeDojoThe comparison dojo

Compare · 2 products compared

AMD Radeon RX 7800 XTvsAMD Radeon RX 7900 XTX: Which GPU?

Both cards share the Rdna 3 architecture, PCIe 4.0 interfaces, and support up to 4 displays with hardware video encoding. They differ primarily in raw compute power, video memory capacity, and power draw.

Report a problem

Intro

What is the problem?

eBay prices refresh hourly — check the listing before you buy. We may earn a commission.

Report a problem

Best for

What is the problem?
Which products? Tick all that apply, or none if you are not sure.

Biggest differences

  • Launch price

    AMD Radeon RX 7800 XT leads

    2×

    lower is better

    • AMD Radeon RX 7800 XT499 USD
    • AMD Radeon RX 7900 XTX999 USD

  • Shader cores

    AMD Radeon RX 7900 XTX leads

    +60%

    higher is better

    • AMD Radeon RX 7800 XT3,840 cores
    • AMD Radeon RX 7900 XTX6,144 cores

  • Memory bandwidth

    AMD Radeon RX 7900 XTX leads

    +54%

    higher is better

    • AMD Radeon RX 7800 XT624 GB/s
    • AMD Radeon RX 7900 XTX960 GB/s

  • Video memory

    AMD Radeon RX 7900 XTX leads

    +50%

    higher is better

    • AMD Radeon RX 7800 XT16 GB
    • AMD Radeon RX 7900 XTX24 GB

Where each one wins

  • AMD Radeon RX 7800 XT

    • Launch price
    • Board power
    • Recommended PSU
    • HDMI version
    • DisplayPort outputs
    • Card length

  • AMD Radeon RX 7900 XTX

    • Shader cores
    • Boost clock
    • 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
  • 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 7800 XTAMD Radeon RX 7900 XTX
Overview

Report a problem

Overview specs

What is the problem?
Which specs? Tick all that apply, or none if you are not sure.
Which products? Tick all that apply, or none if you are not sure.
Release date2023-092022-121
Launch price499 USD999 USD2
Graphics chip

Report a problem

Graphics chip specs

What is the problem?
Which specs? Tick all that apply, or none if you are not sure.
Which products? Tick all that apply, or none if you are not sure.
ArchitectureRdna 3Rdna 3
Shader cores3,840 cores6,144 cores
Boost clock2,430 MHz2,500 MHz3
Base clock1,295 MHzNot published
FP32 compute37.3 TFLOPS61.4 TFLOPS
Memory

Report a problem

Memory specs

What is the problem?
Which specs? Tick all that apply, or none if you are not sure.
Which products? Tick all that apply, or none if you are not sure.
Video memory16 GB24 GB
Memory typeGddr6Gddr6
Memory bus width256 bit384 bit
Memory bandwidth624 GB/s960 GB/s4
Memory speed19.5 Gbps20 Gbps
Last-level cache64 MB96 MB
Power

Report a problem

Power specs

What is the problem?
Which specs? Tick all that apply, or none if you are not sure.
Which products? Tick all that apply, or none if you are not sure.
Board power263 W355 W
Recommended PSU700 W800 W5
Power connectors8-pin8-pin6
Interface

Report a problem

Interface specs

What is the problem?
Which specs? Tick all that apply, or none if you are not sure.
Which products? Tick all that apply, or none if you are not sure.
PCIe version4.04.0
PCIe lanes16 lanes16 lanes
Display outputs

Report a problem

Display outputs specs

What is the problem?
Which specs? Tick all that apply, or none if you are not sure.
Which products? Tick all that apply, or none if you are not sure.
HDMI version2.1a72.1
DisplayPort version2.182.19
HDMI outputs1 ports1 ports
DisplayPort outputs3 ports2 ports
Max displays4 displays4 displays
Video engine

Report a problem

Video engine specs

What is the problem?
Which specs? Tick all that apply, or none if you are not sure.
Which products? Tick all that apply, or none if you are not sure.
Hardware encodeH.264, HEVC, AV1H.264, HEVC, AV110
Video encodersNot published2 encoders11
Size

Report a problem

Size specs

What is the problem?
Which specs? Tick all that apply, or none if you are not sure.
Which products? Tick all that apply, or none if you are not sure.
Card length267 mm287 mm
Card heightNot publishedNot published
Slot width2.5 slots2.5 slots
Notes on 11 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 7900 XTX, Memory bandwidth: AMD also quotes 3500 GB/s 'effective' bandwidth with Infinity Cache; 960 GB/s is the raw VRAM figure.
  5. 5AMD Radeon RX 7900 XTX, Recommended PSU: AMD's 800W minimum assumes a Ryzen 9 5900X-class system; other builds may need more headroom.
  6. 6AMD Radeon RX 7900 XTX, Power connectors: The reference card uses two 8-pin connectors.
  7. 7AMD Radeon RX 7800 XT, HDMI version: AMD's spec page lists HDMI 2.1; its own press release and Notebookcheck state HDMI 2.1a.
  8. 8AMD Radeon RX 7800 XT, DisplayPort version: Notebookcheck lists the DisplayPort 2.1 link rate as UHBR13.5; AMD notes DP 2.1 support depends on AIB designs.
  9. 9AMD Radeon RX 7900 XTX, DisplayPort version: DisplayPort 2.1 runs UHBR 13.5, up to 54Gbps of display link bandwidth per AMD.
  10. 10AMD Radeon RX 7900 XTX, Hardware encode: AMD's spec table marks 4K H264 Encode, H265/HEVC Encode and AV1 Encode all as Yes.
  11. 11AMD 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 takes a massive lead in raw processing muscle, packing 6,144 shader cores and delivering 61.4 TFLOPS of FP32 compute. This massive output translates into smoother high-resolution frame rates and faster rendering in heavy workloads.

By comparison, the RX 7800 XT relies on 3,840 cores and 37.3 TFLOPS. While it handles standard gaming well, users targeting maximum graphical fidelity will notice the heavier lifting the XTX manages effortlessly.

Report a problem

Performance and Compute

What is the problem?

Memory and Cache

For high-end texture streaming and asset loading, the RX 7900 XTX offers 24 GB of GDDR6 video memory paired with a wide 384-bit bus and a 960 GB/s bandwidth. It also includes 96 MB of last-level cache to feed data faster.

The RX 7800 XT steps down to 16 GB of video memory on a 256-bit bus, yielding 624 GB/s of bandwidth and a 64 MB last-level cache. This lower tier still suffices for most modern titles but leaves less headroom for extreme asset loads.

Report a problem

Memory and Cache

What is the problem?

Power and System Requirements

Running the RX 7900 XTX requires a beefier setup, drawing 355 W of board power and demanding an 800 W recommended PSU. It uses two 8-pin power connectors on the reference design.

The RX 7800 XT is much easier on the electricity bill with a board power of 263 W and a minimum 700 W recommended PSU. Both models utilize standard 8-pin connections.

Report a problem

Power and System Requirements

What is the problem?

Display Outputs and Size

Physical dimensions separate the two options for tight enclosures, as the RX 7800 XT has a shorter card length of 267 mm compared to the 287 mm length of the XTX. Both fit into a 2.5-slot width.

For monitor setups, the RX 7800 XT includes three DisplayPort outputs alongside one HDMI port featuring version 2.1a. The XTX drops to two DisplayPort outputs while keeping a single HDMI 2.1 port and adding a dual media engine for simultaneous 8K60 HEVC streams.

Report a problem

Display Outputs and Size

What is the problem?

The Verdict

Buy the RX 7800 XT if you want a budget-friendly card that sips less power while handling standard gaming workloads. Buy the RX 7900 XTX if you need maximum compute power, a wider memory bus, and 24 GB of VRAM for extreme performance.

Report a problem

Verdict

What is the problem?

Where to buy

FAQ

What is the launch price difference?

The RX 7800 XT launched at $499, whereas the RX 7900 XTX launched at $999.

Do both cards support AV1 hardware encoding?

Yes, both graphics cards support H.264, HEVC, and AV1 hardware encoding.

What power supply do I need for these cards?

The RX 7800 XT requires a 700 W power supply, while the RX 7900 XTX requires an 800 W minimum.

How do their boost clocks compare?

The RX 7800 XT reaches a boost clock of 2,430 MHz, while the RX 7900 XTX stretches slightly higher to 2,500 MHz.

Report a problem

FAQ

What is the problem?

Spotted something wrong? Tap the next to any section or spec group to let us know. Every report is read.