RX 580 vs RTX 5090
RTX 5090
$4,269.95 new
$3,700.00 used on eBay
See RTX 5090 price on Amazon → See used listings on eBay →Specs compared
| Spec | RX 580 | RTX 5090 |
|---|---|---|
| Memory | 8 GB | ★ 32 GB |
| Memory type | GDDR5 | GDDR7 |
| Boost clock | 1340 MHz | ★ 2655 MHz |
| Core clock | — | — |
| TDP | 185 W | — |
| Interface | PCIe 3.0 | PCIe 5.0 |
| Length | — | — |
| New price | — | $4,269.95 |
| Used price (eBay) | $65.00 | $3,700.00 |
★ indicates the better value for that spec.
Verdict
The RX 580 and RTX 5090 land at effectively the same price so your decision should come down to features, ecosystem fit, and availability rather than budget.
The RTX 5090's 32 GB of VRAM is a 24 GB advantage over the RX 580. At 4K or in heavily modded games that extra buffer matters — and it provides headroom as future titles push VRAM requirements higher.
As an NVIDIA card, the RTX 5090 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 June 10, 2026. Updated daily.