Arc B580 vs RTX 5090
Arc B580
$369.99 new
$265.00 used on eBay
See Arc B580 price on Amazon → See used listings on eBay →RTX 5090
$4,269.95 new
$3,800.00 used on eBay
See RTX 5090 price on Amazon → See used listings on eBay →Price difference: $3,899.96 (91.3%) — the Arc B580 is cheaper. Used gap: $3,535.00 .
Specs compared
| Spec | Arc B580 | RTX 5090 |
|---|---|---|
| Memory | 12 GB | ★ 32 GB |
| Memory type | GDDR6 | GDDR7 |
| Boost clock | ★ 2760 MHz | 2655 MHz |
| Core clock | — | — |
| TDP | — | — |
| Interface | — | PCIe 5.0 |
| Length | — | — |
| New price | $369.99 ★ | $4,269.95 |
| Used price (eBay) | $265.00 | $3,800.00 |
★ indicates the better value for that spec.
Verdict
With the RTX 5090 running 91% above the Arc B580 — a $3,899.96 premium — the two cards sit in meaningfully different price brackets. The Arc B580 wins on value unless the extra performance matters for your workload.
The RTX 5090's 32 GB of VRAM is a 20 GB advantage over the Arc B580. 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 RTX 5090 offers, the Arc B580 is the stronger value at this price gap.
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Prices as of June 11, 2026. Updated daily.