RX 580 vs RX 6700 XT
RX 6700 XT
$799.00 new
$324.99 used on eBay
See RX 6700 XT price on Amazon → See used listings on eBay →Price difference: $539.01 (67.5%) — the RX 580 is cheaper. Used gap: $245.99 .
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 | $259.99 ★ | $799.00 |
| Used price (eBay) | $79.00 | $324.99 |
★ indicates the better value for that spec.
Verdict
With the RX 6700 XT running 67% above the RX 580 — a $539.01 premium — the two cards sit in meaningfully different price brackets. The RX 580 wins on value unless the extra performance matters for your workload.
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.
Unless you specifically need what the RX 6700 XT offers, the RX 580 is the stronger value at this price gap.
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Prices as of October 16, 2026. Updated daily.