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NVIDIA - GeForce RTX 4080 SUPER vs AMD - Radeon RX 7900 XTX

Last updated · How Mars Score works
GeForce RTX 4080 SUPERNVIDIARENDER
Probe A
NVIDIA
GeForce RTX 4080 SUPER
69.7/ 100B
Benchmarks73· 40%
Core69· 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 4080 SUPER and Radeon RX 7900 XTX, the GeForce RTX 4080 SUPER comes out ahead in cuda / stream cores and tdp, while the Radeon RX 7900 XTX wins on vram and memory bus. Overall, the GeForce RTX 4080 SUPER scores 69.7 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 (69.7 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 4080 SUPER 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, tdp, 3dmark time spy, 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.

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 4080 SUPER wins

  • CUDA / Stream cores — 66.67% more. 10240 vs 6144.
  • TDP — 35.00 W less. 320 vs 355.
  • 3DMark Time Spy — 2.38% more. 21500 vs 21000.
  • Boost clock — 2.00% more. 2550 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 — 20.00% more. 96 vs 80.
Full readout

Spec comparison

Core

SpecNVIDIA - GeForce RTX 4080 SUPERAMD - Radeon RX 7900 XTX
ChipsetAD103Navi 31
Base clock2295 MHzlead1900 MHz
Boost clock2550 MHzlead2500 MHz
CUDA / Stream cores10240lead6144
Ray tracing cores8096lead

Memory

SpecNVIDIA - GeForce RTX 4080 SUPERAMD - Radeon RX 7900 XTX
VRAM16 GB24 GBlead
VRAM typeGDDR6XleadGDDR6
Memory bus256 bit384 bitlead

Power & Form

SpecNVIDIA - GeForce RTX 4080 SUPERAMD - Radeon RX 7900 XTX
TDP320 Wlead355 W
Recommended PSU750 Wlead800 W
Length304 mm287 mmlead
Slot size3-slot2.5-slot

Benchmarks

SpecNVIDIA - GeForce RTX 4080 SUPERAMD - Radeon RX 7900 XTX
3DMark Time Spy21500lead21000
DLSStrueleadfalse
FSRfalsetruelead
Reader questions

Frequently asked

Which has more VRAM, GeForce RTX 4080 SUPER or Radeon RX 7900 XTX?+

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

Which scores higher in 3DMark Time Spy, GeForce RTX 4080 SUPER or Radeon RX 7900 XTX?+

GeForce RTX 4080 SUPER scores 21500 vs 21000.

Which draws less power, GeForce RTX 4080 SUPER or Radeon RX 7900 XTX?+

GeForce RTX 4080 SUPER draws 320W TDP vs 355W.

Drill down

Spec-level deep dives

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