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AMD - Radeon RX 7800 XT vs AMD - Radeon RX 7900 XTX

Last updated · How Mars Score works
Radeon RX 7800 XTAMDRENDER
Probe A
AMD
Radeon RX 7800 XT
62.5/ 100C
Benchmarks64· 40%
Core60· 30%
Memory64· 20%
Power & Form· 10%
Radeon RX 7900 XTXAMDRENDER
Probe B
AMD
Radeon RX 7900 XTX
71.0/ 100B
Benchmarks72· 40%
Core64· 30%
Memory80· 20%
Power & Form· 10%
Quick verdict

Between the Radeon RX 7800 XT and Radeon RX 7900 XTX, the Radeon RX 7800 XT comes out ahead in tdp, while the Radeon RX 7900 XTX wins on cuda / stream cores and ray tracing cores. Overall, the Radeon RX 7800 XT scores 62.5 and the Radeon RX 7900 XTX scores 71 on our Mars Score.

Buying advice

Which should you buy?

The Radeon RX 7900 XTX is the clear pick on raw spec strength, leading by 8.5 points on the Mars Score. The margin is wide enough that the underdog only makes sense if its individual strengths line up with what you specifically need.

Pick the Radeon RX 7800 XT if you care most about tdp. The biggest gaps in its favor are tdp.

Pick the Radeon RX 7900 XTX if you push the hardware — gaming, on-device AI, heavy multitasking — and the extra compute headroom is worth the trade-offs. Its strongest claims are cuda / stream cores, ray tracing cores, vram, among others.

Both ship with comparable dlss, so those specs don't separate the two — focus on the differences below.

Bottom line: the Radeon RX 7900 XTX is the safer default. The other model is the right choice only when its specific advantages line up with your priorities.

Why AMD - Radeon RX 7800 XT wins

  • TDP — 92.00 W less. 263 vs 355.

Why AMD - Radeon RX 7900 XTX wins

  • CUDA / Stream cores — 60.00% more. 6144 vs 3840.
  • Ray tracing cores — 60.00% more. 96 vs 60.
  • VRAM — 50.00% more. 24 GB vs 16 GB.
  • Memory bus — 50.00% more. 384 bit vs 256 bit.
  • 3DMark Time Spy — 27.27% more. 21000 vs 16500.
  • Boost clock — 2.88% more. 2500 MHz vs 2430 MHz.
Full readout

Spec comparison

Core

SpecAMD - Radeon RX 7800 XTAMD - Radeon RX 7900 XTX
ChipsetNavi 32Navi 31
Base clock1295 MHz1900 MHzlead
Boost clock2430 MHz2500 MHzlead
CUDA / Stream cores38406144lead
Ray tracing cores6096lead

Memory

SpecAMD - Radeon RX 7800 XTAMD - Radeon RX 7900 XTX
VRAM16 GB24 GBlead
VRAM typeGDDR6GDDR6
Memory bus256 bit384 bitlead

Power & Form

SpecAMD - Radeon RX 7800 XTAMD - Radeon RX 7900 XTX
TDP263 Wlead355 W
Recommended PSU700 Wlead800 W
Length267 mmlead287 mm
Slot size2.5-slot2.5-slot

Benchmarks

SpecAMD - Radeon RX 7800 XTAMD - Radeon RX 7900 XTX
3DMark Time Spy1650021000lead
DLSSfalsefalse
FSRtruetrue
Reader questions

Frequently asked

Which has more VRAM, Radeon RX 7800 XT or Radeon RX 7900 XTX?+

Radeon RX 7900 XTX ships with 24GB GDDR6 vs 16GB.

Which scores higher in 3DMark Time Spy, Radeon RX 7800 XT or Radeon RX 7900 XTX?+

Radeon RX 7900 XTX scores 21000 vs 16500.

Which draws less power, Radeon RX 7800 XT or Radeon RX 7900 XTX?+

Radeon RX 7800 XT draws 263W TDP vs 355W.

Drill down

Spec-level deep dives

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