RX 5700 XT vs Arc B580
Arc B580
$369.99 new
$280.00 used on eBay
See Arc B580 price on Amazon → See used listings on eBay →Specs compared
| Spec | RX 5700 XT | Arc B580 |
|---|---|---|
| Memory | 8 GB | ★ 12 GB |
| Memory type | GDDR6 | GDDR6 |
| Boost clock | 1905 MHz | ★ 2760 MHz |
| Core clock | — | — |
| TDP | 225 W | — |
| Interface | PCIe 4.0 | — |
| Length | — | — |
| New price | — | $369.99 |
| Used price (eBay) | $125.00 | $280.00 |
★ indicates the better value for that spec.
Verdict
The RX 5700 XT and Arc B580 land at effectively the same price so your decision should come down to features, ecosystem fit, and availability rather than budget.
The Arc B580's 12 GB of VRAM is a 4 GB advantage over the RX 5700 XT. 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 Arc B580 edges it on raw VRAM, which carries more weight the longer you hold onto a card.
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Prices as of July 14, 2026. Updated daily.