RX 580 vs RX 6700 XT
Specs compared
| Spec | RX 580 | RX 6700 XT |
|---|---|---|
| Memory | 8 GB | ★ 12 GB |
| Memory type | GDDR5 | GDDR6 |
| Boost clock | 1340 MHz | ★ 2581 MHz |
| Core clock | — | — |
| TDP | ★ 185 W | 230 W |
| Interface | PCIe 3.0 | PCIe 4.0 |
| Length | — | — |
| New price | — | — |
| Used price (eBay) | $65.00 | $289.99 |
★ indicates the better value for that spec.
Verdict
The RX 580 and RX 6700 XT land at effectively the same price so your decision should come down to features, ecosystem fit, and availability rather than budget.
The RX 6700 XT's 12 GB of VRAM is a 4 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.
If we had to pick one: the RX 6700 XT edges it on raw VRAM, which carries more weight the longer you hold onto a card.
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Prices as of July 17, 2026. Updated daily.