RX 5700 XT vs Arc B580
RX 5700 XT
$219.00 new
$174.99 used on eBay
See RX 5700 XT price on Amazon → See used listings on eBay →Arc B580
$369.99 new
$329.95 used on eBay
See Arc B580 price on Amazon → See used listings on eBay →Price difference: $150.99 (40.8%) — the RX 5700 XT is cheaper. Used gap: $154.96 .
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 | $219.00 ★ | $369.99 |
| Used price (eBay) | $174.99 | $329.95 |
★ indicates the better value for that spec.
Verdict
With the Arc B580 running 41% above the RX 5700 XT — a $150.99 premium — the two cards sit in meaningfully different price brackets. The RX 5700 XT wins on value unless the extra performance matters for your workload.
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.
Unless you specifically need what the Arc B580 offers, the RX 5700 XT is the stronger value at this price gap.
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Prices as of September 26, 2026. Updated daily.