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AMD - Radeon RX 7900 XTX vs NVIDIA - GeForce RTX 5090

Last updated · How Mars Score works
Radeon RX 7900 XTXAMDRENDER
Probe A
AMD
Radeon RX 7900 XTX
71.0/ 100B
Benchmarks72· 40%
Core64· 30%
Memory80· 20%
Power & Form—· 10%
GeForce RTX 5090NVIDIARENDER
Probe B
NVIDIA
GeForce RTX 5090
88.5/ 100S
Benchmarks91· 40%
Core81· 30%
Memory95· 20%
Power & Form—· 10%
Quick verdict

Between the Radeon RX 7900 XTX and GeForce RTX 5090, the Radeon RX 7900 XTX comes out ahead in tdp and boost clock, while the GeForce RTX 5090 wins on cuda / stream cores and ray tracing cores. Overall, the Radeon RX 7900 XTX scores 71 and the GeForce RTX 5090 scores 88.5 on our Mars Score.

Buying advice

Which should you buy?

The GeForce RTX 5090 is the clear pick on raw spec strength, leading by 17.5 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 7900 XTX if you care most about tdp and boost clock. The biggest gaps in its favor are tdp, boost clock.

Pick the GeForce RTX 5090 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.

There are no meaningful ties on the headline specs — every popular-comparison metric has a winner.

Bottom line: the GeForce RTX 5090 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 XTX wins

  • ▲TDP — 220.00 W less. 355 vs 575.
  • ▲Boost clock — 3.86% more. 2500 MHz vs 2407 MHz.

Why NVIDIA - GeForce RTX 5090 wins

  • ▲CUDA / Stream cores — 254.17% more. 21760 vs 6144.
  • ▲Ray tracing cores — 77.08% more. 170 vs 96.
  • ▲3DMark Time Spy — 54.76% more. 32500 vs 21000.
  • ▲VRAM — 33.33% more. 32 GB vs 24 GB.
  • ▲Memory bus — 33.33% more. 512 bit vs 384 bit.
  • ▲Has DLSS.
Full readout

Spec comparison

Core

SpecAMD - Radeon RX 7900 XTXNVIDIA - GeForce RTX 5090
ChipsetNavi 31GB202
Base clockⓘ1900 MHz2017 MHzlead
Boost clockⓘ2500 MHzlead2407 MHz
CUDA / Stream coresⓘ614421760lead
Ray tracing coresⓘ96170lead

Memory

SpecAMD - Radeon RX 7900 XTXNVIDIA - GeForce RTX 5090
VRAMⓘ24 GB32 GBlead
VRAM typeⓘGDDR6GDDR7lead
Memory busⓘ384 bit512 bitlead

Power & Form

SpecAMD - Radeon RX 7900 XTXNVIDIA - GeForce RTX 5090
TDPⓘ355 Wlead575 W
Recommended PSUⓘ800 Wlead1000 W
Length287 mmlead304 mm
Slot size2.5-slot2-slot

Benchmarks

SpecAMD - Radeon RX 7900 XTXNVIDIA - GeForce RTX 5090
3DMark Time Spyⓘ2100032500lead
DLSSⓘfalsetruelead
FSRⓘtrueleadfalse
Reader questions

Frequently asked

Which has more VRAM, Radeon RX 7900 XTX or GeForce RTX 5090?+

GeForce RTX 5090 ships with 32GB GDDR7 vs 24GB.

Which scores higher in 3DMark Time Spy, Radeon RX 7900 XTX or GeForce RTX 5090?+

GeForce RTX 5090 scores 32500 vs 21000.

Which draws less power, Radeon RX 7900 XTX or GeForce RTX 5090?+

Radeon RX 7900 XTX draws 355W TDP vs 575W.

Drill down

Spec-level deep dives

Chipset→Base clock→Boost clock→CUDA / Stream cores→Ray tracing cores→VRAM→VRAM type→Memory bus→TDP→Recommended PSU→Length→Slot size→
By manufacturer

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