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NVIDIA - GeForce RTX 5080 vs AMD - Radeon RX 7900 XTX

Last updated · How Mars Score works
GeForce RTX 5080NVIDIARENDER
Probe A
NVIDIA
GeForce RTX 5080
71.9/ 100B
Benchmarks77· 40%
Core71· 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 GeForce RTX 5080 and Radeon RX 7900 XTX, the GeForce RTX 5080 comes out ahead in cuda / stream cores and 3dmark time spy, while the Radeon RX 7900 XTX wins on vram and memory bus. Overall, the GeForce RTX 5080 scores 71.9 and the Radeon RX 7900 XTX scores 71 on our Mars Score.

Buying advice

Which should you buy?

These two are nearly even on the Mars Score (71.9 vs 71). The decision isn't about overall quality — both clear the bar — it's about which specific trade-offs fit your use.

Pick the GeForce RTX 5080 if you push the hardware — gaming, on-device AI, heavy multitasking — and the extra compute headroom is worth the trade-offs. The biggest gaps in its favor are cuda / stream cores, 3dmark time spy, boost clock, among others.

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 vram, memory bus, ray tracing cores, among others.

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

Bottom line: there is no wrong answer here — match the spec advantages to how you actually use the product. The Mars Score parity tells you both are well-rounded; the differences are about trade-offs, not quality.

Why NVIDIA - GeForce RTX 5080 wins

  • CUDA / Stream cores — 75.00% more. 10752 vs 6144.
  • 3DMark Time Spy — 13.33% more. 23800 vs 21000.
  • Boost clock — 4.68% more. 2617 MHz vs 2500 MHz.
  • Has DLSS.

Why AMD - Radeon RX 7900 XTX wins

  • VRAM — 50.00% more. 24 GB vs 16 GB.
  • Memory bus — 50.00% more. 384 bit vs 256 bit.
  • Ray tracing cores — 14.29% more. 96 vs 84.
  • TDP — 5.00 W less. 355 vs 360.
Full readout

Spec comparison

Core

SpecNVIDIA - GeForce RTX 5080AMD - Radeon RX 7900 XTX
ChipsetGB203Navi 31
Base clock2295 MHzlead1900 MHz
Boost clock2617 MHzlead2500 MHz
CUDA / Stream cores10752lead6144
Ray tracing cores8496lead

Memory

SpecNVIDIA - GeForce RTX 5080AMD - Radeon RX 7900 XTX
VRAM16 GB24 GBlead
VRAM typeGDDR7leadGDDR6
Memory bus256 bit384 bitlead

Power & Form

SpecNVIDIA - GeForce RTX 5080AMD - Radeon RX 7900 XTX
TDP360 W355 Wlead
Recommended PSU850 W800 Wlead
Length304 mm287 mmlead
Slot size2-slot2.5-slot

Benchmarks

SpecNVIDIA - GeForce RTX 5080AMD - Radeon RX 7900 XTX
3DMark Time Spy23800lead21000
DLSStrueleadfalse
FSRfalsetruelead
Reader questions

Frequently asked

Which has more VRAM, GeForce RTX 5080 or Radeon RX 7900 XTX?+

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

Which scores higher in 3DMark Time Spy, GeForce RTX 5080 or Radeon RX 7900 XTX?+

GeForce RTX 5080 scores 23800 vs 21000.

Which draws less power, GeForce RTX 5080 or Radeon RX 7900 XTX?+

Radeon RX 7900 XTX draws 355W TDP vs 360W.

Drill down

Spec-level deep dives

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