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AMD - Radeon RX 7900 XT vs AMD - Radeon RX 9080 XT

Last updated · How Mars Score works
Radeon RX 7900 XTAMDRENDER
Probe A
AMD
Radeon RX 7900 XT
66.7/ 100C
Benchmarks68· 40%
Core61· 30%
Memory72· 20%
Power & Form· 10%
Radeon RX 9080 XTAMDRENDER
Probe B
AMD
Radeon RX 9080 XT
80.1/ 100A
Benchmarks84· 40%
Core74· 30%
Memory80· 20%
Power & Form· 10%
Quick verdict

Between the Radeon RX 7900 XT and Radeon RX 9080 XT, the Radeon RX 7900 XT comes out ahead in tdp, while the Radeon RX 9080 XT wins on cuda / stream cores and ray tracing cores. Overall, the Radeon RX 7900 XT scores 66.7 and the Radeon RX 9080 XT scores 80.1 on our Mars Score.

Buying advice

Which should you buy?

The Radeon RX 9080 XT is the clear pick on raw spec strength, leading by 13.4 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 7900 XT if you care most about tdp. The biggest gaps in its favor are tdp.

Pick the Radeon RX 9080 XT 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, 3dmark time spy, 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 9080 XT 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 7900 XT wins

  • TDP — 15.00 W less. 315 vs 330.

Why AMD - Radeon RX 9080 XT wins

  • CUDA / Stream cores — 52.38% more. 8192 vs 5376.
  • Ray tracing cores — 52.38% more. 128 vs 84.
  • 3DMark Time Spy — 51.60% more. 28500 vs 18800.
  • Boost clock — 29.17% more. 3100 MHz vs 2400 MHz.
  • VRAM — 20.00% more. 24 GB vs 20 GB.
  • Memory bus — 20.00% more. 384 bit vs 320 bit.
Full readout

Spec comparison

Core

SpecAMD - Radeon RX 7900 XTAMD - Radeon RX 9080 XT
ChipsetNavi 31Navi 48
Base clock1500 MHz2100 MHzlead
Boost clock2400 MHz3100 MHzlead
CUDA / Stream cores53768192lead
Ray tracing cores84128lead

Memory

SpecAMD - Radeon RX 7900 XTAMD - Radeon RX 9080 XT
VRAM20 GB24 GBlead
VRAM typeGDDR6GDDR7lead
Memory bus320 bit384 bitlead

Power & Form

SpecAMD - Radeon RX 7900 XTAMD - Radeon RX 9080 XT
TDP315 Wlead330 W
Recommended PSU750 Wlead850 W
Length276 mmlead320 mm
Slot size2.5-slot3-slot

Benchmarks

SpecAMD - Radeon RX 7900 XTAMD - Radeon RX 9080 XT
3DMark Time Spy1880028500lead
DLSSfalsefalse
FSRtruetrue
Reader questions

Frequently asked

Which has more VRAM, Radeon RX 7900 XT or Radeon RX 9080 XT?+

Radeon RX 9080 XT ships with 24GB GDDR7 vs 20GB.

Which scores higher in 3DMark Time Spy, Radeon RX 7900 XT or Radeon RX 9080 XT?+

Radeon RX 9080 XT scores 28500 vs 18800.

Which draws less power, Radeon RX 7900 XT or Radeon RX 9080 XT?+

Radeon RX 7900 XT draws 315W TDP vs 330W.

Drill down

Spec-level deep dives

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