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ASUS - ROG Astral RTX 5090 OC vs AMD - Radeon RX 9080

Last updated · How Mars Score works
ROG Astral RTX 5090 OCASUSRENDER
Probe A
ASUS
ROG Astral RTX 5090 OC
91.4/ 100S
Benchmarks95· 40%
Core84· 30%
Memory95· 20%
Power & Form—· 10%
Radeon RX 9080AMDRENDER
Probe B
AMD
Radeon RX 9080
75.1/ 100B
Benchmarks79· 40%
Core71· 30%
Memory72· 20%
Power & Form—· 10%
Quick verdict

Between the ROG Astral RTX 5090 OC and Radeon RX 9080, the ROG Astral RTX 5090 OC comes out ahead in cuda / stream cores and 3dmark time spy, while the Radeon RX 9080 wins on tdp and boost clock. Overall, the ROG Astral RTX 5090 OC scores 91.4 and the Radeon RX 9080 scores 75.1 on our Mars Score.

Buying advice

Which should you buy?

The ROG Astral RTX 5090 OC is the clear pick on raw spec strength, leading by 16.3 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 ROG Astral RTX 5090 OC 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, vram, among others.

Pick the Radeon RX 9080 if you care most about tdp and boost clock. Its strongest claims are tdp, boost clock.

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

Bottom line: the ROG Astral RTX 5090 OC is the safer default. The other model is the right choice only when its specific advantages line up with your priorities.

Why ASUS - ROG Astral RTX 5090 OC wins

  • ▲CUDA / Stream cores — 203.57% more. 21760 vs 7168.
  • ▲3DMark Time Spy — 72.55% more. 44000 vs 25500.
  • ▲VRAM — 60.00% more. 32 GB vs 20 GB.
  • ▲Memory bus — 60.00% more. 512 bit vs 320 bit.
  • ▲Ray tracing cores — 51.79% more. 170 vs 112.
  • ▲Has DLSS.

Why AMD - Radeon RX 9080 wins

  • ▲TDP — 310.00 W less. 290 vs 600.
  • ▲Boost clock — 11.11% more. 2950 MHz vs 2655 MHz.
Full readout

Spec comparison

Core

SpecASUS - ROG Astral RTX 5090 OCAMD - Radeon RX 9080
ChipsetGB202Navi 48
Base clockⓘ2017 MHzlead2000 MHz
Boost clockⓘ2655 MHz2950 MHzlead
CUDA / Stream coresⓘ21760lead7168
Ray tracing coresⓘ170lead112

Memory

SpecASUS - ROG Astral RTX 5090 OCAMD - Radeon RX 9080
VRAMⓘ32 GBlead20 GB
VRAM typeⓘGDDR7GDDR7
Memory busⓘ512 bitlead320 bit

Power & Form

SpecASUS - ROG Astral RTX 5090 OCAMD - Radeon RX 9080
TDPⓘ600 W290 Wlead
Recommended PSUⓘ1200 W800 Wlead
Length357 mm310 mmlead
Slot size4-slot3-slot

Benchmarks

SpecASUS - ROG Astral RTX 5090 OCAMD - Radeon RX 9080
3DMark Time Spyⓘ44000lead25500
DLSSⓘtrueleadfalse
FSRⓘfalsetruelead
Reader questions

Frequently asked

Which has more VRAM, ROG Astral RTX 5090 OC or Radeon RX 9080?+

ROG Astral RTX 5090 OC ships with 32GB GDDR7 vs 20GB.

Which scores higher in 3DMark Time Spy, ROG Astral RTX 5090 OC or Radeon RX 9080?+

ROG Astral RTX 5090 OC scores 44000 vs 25500.

Which draws less power, ROG Astral RTX 5090 OC or Radeon RX 9080?+

Radeon RX 9080 draws 290W TDP vs 600W.

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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