RX 580 vs RTX 3080
Specs compared
| Spec | RX 580 | RTX 3080 |
|---|---|---|
| Memory | 8 GB | ★ 10 GB |
| Memory type | GDDR5 | GDDR6X |
| Boost clock | 1340 MHz | ★ 1710 MHz |
| Core clock | — | — |
| TDP | ★ 185 W | 320 W |
| Interface | PCIe 3.0 | PCIe 4.0 |
| Length | — | — |
| New price | — | — |
| Used price (eBay) | $65.00 | $299.00 |
★ indicates the better value for that spec.
Verdict
The RX 580 and RTX 3080 land at effectively the same price so your decision should come down to features, ecosystem fit, and availability rather than budget.
Power consumption is a meaningful differentiator here: the RX 580 draws 185 W versus 320 W for the RTX 3080. That 135 W gap can determine whether your existing PSU is sufficient and will show up in long-term electricity costs.
As an NVIDIA card, the RTX 3080 gives you access to DLSS 4 super-resolution and Frame Generation, which can meaningfully lift frame rates in supported titles. The RX 580 counters with FSR 4, which is open-source and works across a wider range of games — including some that don't support DLSS. Which ecosystem matters more depends on the games in your library.
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Prices as of July 17, 2026. Updated daily.